Headline
Red Hat Security Advisory 2024-0772-03
Red Hat Security Advisory 2024-0772-03 - An update for the squid:4 module is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 8.2 Telecommunications Update Service, and Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
The following advisory data is extracted from:
https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_0772.json
Red Hat officially shut down their mailing list notifications October 10, 2023. Due to this, Packet Storm has recreated the below data as a reference point to raise awareness. It must be noted that due to an inability to easily track revision updates without crawling Red Hat’s archive, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment.
- Packet Storm Staff
====================================================================
Red Hat Security Advisory
Synopsis: Important: squid:4 security update
Advisory ID: RHSA-2024:0772-03
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2024:0772
Issue date: 2024-02-12
Revision: 03
CVE Names: CVE-2023-5824
====================================================================
Summary:
An update for the squid:4 module is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 8.2 Telecommunications Update Service, and Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description:
Squid is a high-performance proxy caching server for web clients, supporting FTP, and HTTP data objects.
Security Fix(es):
squid: DoS against HTTP and HTTPS (CVE-2023-5824)
squid: Denial of Service in SSL Certificate validation (CVE-2023-46724)
squid: NULL pointer dereference in the gopher protocol code (CVE-2023-46728)
squid: Buffer over-read in the HTTP Message processing feature (CVE-2023-49285)
squid: Incorrect Check of Function Return Value In Helper Process management (CVE-2023-49286)
squid: denial of service in HTTP request parsing (CVE-2023-50269)
Bug Fix(es):
- squid crashes in assertion when a parent peer exists (RHEL-18253)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Solution:
https://access.redhat.com/articles/11258
CVEs:
CVE-2023-5824
References:
https://access.redhat.com/security/updates/classification/#important
https://bugzilla.redhat.com/show_bug.cgi?id=2245914
https://bugzilla.redhat.com/show_bug.cgi?id=2247567
https://bugzilla.redhat.com/show_bug.cgi?id=2248521
https://bugzilla.redhat.com/show_bug.cgi?id=2252923
https://bugzilla.redhat.com/show_bug.cgi?id=2252926
https://bugzilla.redhat.com/show_bug.cgi?id=2254663
Related news
Ubuntu Security Notice 6857-1 - Joshua Rogers discovered that Squid incorrectly handled requests with the urn: scheme. A remote attacker could possibly use this issue to cause Squid to consume resources, leading to a denial of service. This issue only affected Ubuntu 16.04 LTS. It was discovered that Squid incorrectly handled SSPI and SMB authentication. A remote attacker could use this issue to cause Squid to crash, resulting in a denial of service, or possibly obtain sensitive information. This issue only affected Ubuntu 16.04 LTS.
Ubuntu Security Notice 6728-3 - USN-6728-1 fixed vulnerabilities in Squid. The fix for CVE-2023-5824 caused Squid to crash in certain environments on Ubuntu 20.04 LTS and was disabled in USN-6728-2. The problematic fix for CVE-2023-5824 has now been corrected and reinstated in this update.
Red Hat Security Advisory 2024-1787-03 - An update for squid is now available for Red Hat Enterprise Linux 7. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
Ubuntu Security Notice 6728-2 - USN-6728-1 fixed vulnerabilities in Squid. The fix for CVE-2023-5824 caused Squid to crash in certain environments on Ubuntu 20.04 LTS. The problematic fix has been reverted pending further investigation. Joshua Rogers discovered that Squid incorrectly handled collapsed forwarding. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. Joshua Rogers discovered that Squid incorrectly handled certain structural elements. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. Joshua Rogers discovered that Squid incorrectly handled Cache Manager error responses. A remote trusted client can possibly use this issue to cause Squid to crash, resulting in a denial of service. Joshua Rogers discovered that Squid incorrectly handled the HTTP Chunked decoder. A remote attacker could possibly use this ...
Ubuntu Security Notice 6728-1 - Joshua Rogers discovered that Squid incorrectly handled collapsed forwarding. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. Joshua Rogers discovered that Squid incorrectly handled certain structural elements. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service.
Debian Linux Security Advisory 5637-1 - Several security vulnerabilities have been discovered in Squid, a full featured web proxy cache. Due to programming errors in Squid's HTTP request parsing, remote attackers may be able to execute a denial of service attack by sending large X-Forwarded-For header or trigger a stack buffer overflow while performing HTTP Digest authentication. Other issues facilitate request smuggling past a firewall or a denial of service against Squid's Helper process management.
Red Hat Security Advisory 2024-1153-03 - An update for squid is now available for Red Hat Enterprise Linux 9.0 Extended Update Support. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
Red Hat Security Advisory 2024-1085-03 - An update for squid is now available for Red Hat Enterprise Linux 9.2 Extended Update Support. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2024-0773-03 - An update for the squid:4 module is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, and Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
Red Hat Security Advisory 2024-0773-03 - An update for the squid:4 module is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, and Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
Red Hat Security Advisory 2024-0773-03 - An update for the squid:4 module is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, and Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
Red Hat Security Advisory 2024-0773-03 - An update for the squid:4 module is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, and Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
Red Hat Security Advisory 2024-0773-03 - An update for the squid:4 module is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, and Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
Red Hat Security Advisory 2024-0773-03 - An update for the squid:4 module is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, and Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
Red Hat Security Advisory 2024-0771-03 - An update for the squid:4 module is now available for Red Hat Enterprise Linux 8.6 Extended Update Support. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
Red Hat Security Advisory 2024-0397-03 - An update for the squid:4 module is now available for Red Hat Enterprise Linux 8.8 Extended Update Support. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
Red Hat Security Advisory 2024-0397-03 - An update for the squid:4 module is now available for Red Hat Enterprise Linux 8.8 Extended Update Support. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
Red Hat Security Advisory 2024-0397-03 - An update for the squid:4 module is now available for Red Hat Enterprise Linux 8.8 Extended Update Support. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
Red Hat Security Advisory 2024-0397-03 - An update for the squid:4 module is now available for Red Hat Enterprise Linux 8.8 Extended Update Support. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
Red Hat Security Advisory 2024-0397-03 - An update for the squid:4 module is now available for Red Hat Enterprise Linux 8.8 Extended Update Support. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
Red Hat Security Advisory 2024-0397-03 - An update for the squid:4 module is now available for Red Hat Enterprise Linux 8.8 Extended Update Support. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
Ubuntu Security Notice 6594-1 - Joshua Rogers discovered that Squid incorrectly handled HTTP message processing. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. Joshua Rogers discovered that Squid incorrectly handled Helper process management. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. Joshua Rogers discovered that Squid incorrectly handled HTTP request parsing. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service.
Ubuntu Security Notice 6594-1 - Joshua Rogers discovered that Squid incorrectly handled HTTP message processing. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. Joshua Rogers discovered that Squid incorrectly handled Helper process management. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. Joshua Rogers discovered that Squid incorrectly handled HTTP request parsing. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service.
Ubuntu Security Notice 6594-1 - Joshua Rogers discovered that Squid incorrectly handled HTTP message processing. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. Joshua Rogers discovered that Squid incorrectly handled Helper process management. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. Joshua Rogers discovered that Squid incorrectly handled HTTP request parsing. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service.
Red Hat Security Advisory 2024-0072-03 - An update for squid is now available for Red Hat Enterprise Linux 9.2 Extended Update Support. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
Red Hat Security Advisory 2024-0072-03 - An update for squid is now available for Red Hat Enterprise Linux 9.2 Extended Update Support. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
Red Hat Security Advisory 2024-0072-03 - An update for squid is now available for Red Hat Enterprise Linux 9.2 Extended Update Support. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
Red Hat Security Advisory 2024-0072-03 - An update for squid is now available for Red Hat Enterprise Linux 9.2 Extended Update Support. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
Red Hat Security Advisory 2024-0072-03 - An update for squid is now available for Red Hat Enterprise Linux 9.2 Extended Update Support. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
Red Hat Security Advisory 2024-0071-03 - An update for squid is now available for Red Hat Enterprise Linux 9. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
Red Hat Security Advisory 2024-0071-03 - An update for squid is now available for Red Hat Enterprise Linux 9. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
Red Hat Security Advisory 2024-0071-03 - An update for squid is now available for Red Hat Enterprise Linux 9. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
Red Hat Security Advisory 2024-0071-03 - An update for squid is now available for Red Hat Enterprise Linux 9. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
Red Hat Security Advisory 2024-0046-03 - An update for the squid:4 module is now available for Red Hat Enterprise Linux 8. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
Red Hat Security Advisory 2024-0046-03 - An update for the squid:4 module is now available for Red Hat Enterprise Linux 8. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
Red Hat Security Advisory 2024-0046-03 - An update for the squid:4 module is now available for Red Hat Enterprise Linux 8. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
Red Hat Security Advisory 2024-0046-03 - An update for the squid:4 module is now available for Red Hat Enterprise Linux 8. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.
Squid is a caching proxy for the Web. Due to an Uncontrolled Recursion bug in versions 2.6 through 2.7.STABLE9, versions 3.1 through 5.9, and versions 6.0.1 through 6.5, Squid may be vulnerable to a Denial of Service attack against HTTP Request parsing. This problem allows a remote client to perform Denial of Service attack by sending a large X-Forwarded-For header when the follow_x_forwarded_for feature is configured. This bug is fixed by Squid version 6.6. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives.
Ubuntu Security Notice 6500-2 - USN-6500-1 fixed several vulnerabilities in Squid. This update provides the corresponding update for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. Joshua Rogers discovered that Squid incorrectly handled the Gopher protocol. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. Gopher support has been disabled in this update.
Red Hat Security Advisory 2023-7668-03 - An update for the squid:4 module is now available for Red Hat Enterprise Linux 8. Issues addressed include a denial of service vulnerability.
Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to an Incorrect Check of Function Return Value bug Squid is vulnerable to a Denial of Service attack against its Helper process management. This bug is fixed by Squid version 6.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a Buffer Overread bug Squid is vulnerable to a Denial of Service attack against Squid HTTP Message processing. This bug is fixed by Squid version 6.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Ubuntu Security Notice 6500-1 - Joshua Rogers discovered that Squid incorrectly handled validating certain SSL certificates. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS, Ubuntu 23.04, and Ubuntu 23.10. Joshua Rogers discovered that Squid incorrectly handled the Gopher protocol. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. Gopher support has been disabled in this update. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 23.04.
Ubuntu Security Notice 6500-1 - Joshua Rogers discovered that Squid incorrectly handled validating certain SSL certificates. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS, Ubuntu 23.04, and Ubuntu 23.10. Joshua Rogers discovered that Squid incorrectly handled the Gopher protocol. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. Gopher support has been disabled in this update. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 23.04.
Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a NULL pointer dereference bug Squid is vulnerable to a Denial of Service attack against Squid's Gopher gateway. The gopher protocol is always available and enabled in Squid prior to Squid 6.0.1. Responses triggering this bug are possible to be received from any gopher server, even those without malicious intent. Gopher support has been removed in Squid version 6.0.1. Users are advised to upgrade. Users unable to upgrade should reject all gopher URL requests.
Squid is vulnerable to Denial of Service attack against HTTP and HTTPS clients due to an Improper Handling of Structural Elements bug.
Squid is a caching proxy for the Web. Due to an Improper Validation of Specified Index bug, Squid versions 3.3.0.1 through 5.9 and 6.0 prior to 6.4 compiled using `--with-openssl` are vulnerable to a Denial of Service attack against SSL Certificate validation. This problem allows a remote server to perform Denial of Service against Squid Proxy by initiating a TLS Handshake with a specially crafted SSL Certificate in a server certificate chain. This attack is limited to HTTPS and SSL-Bump. This bug is fixed in Squid version 6.4. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives. Those who you use a prepackaged version of Squid should refer to the package vendor for availability information on updated packages.