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Red Hat Security Advisory 2023-7213-01
Red Hat Security Advisory 2023-7213-01 - An update for the squid:4 module is now available for Red Hat Enterprise Linux 8. Issues addressed include a denial of service vulnerability.
The following data is constructed from data provided by Red Hat's json file at:https://access.redhat.com/security/data/csaf/v2/advisories/2023/rhsa-2023_7213.jsonRed 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 AdvisorySynopsis: Critical: squid:4 security updateAdvisory ID: RHSA-2023:7213-01Product: Red Hat Enterprise LinuxAdvisory URL: https://access.redhat.com/errata/RHSA-2023:7213Issue date: 2023-11-14Revision: 01CVE Names: CVE-2023-46846====================================================================Summary: An update for the squid:4 module is now available for Red Hat Enterprise Linux 8.Red Hat Product Security has rated this update as having a security impact of Critical. 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, Gopher, and HTTP data objects.Security Fix(es):* squid: Denial of Service in HTTP Digest Authentication (CVE-2023-46847)* squid: Request/Response smuggling in HTTP/1.1 and ICAP (CVE-2023-46846)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/11258CVEs:CVE-2023-46846References:https://access.redhat.com/security/updates/classification/#criticalhttps://bugzilla.redhat.com/show_bug.cgi?id=2245910https://bugzilla.redhat.com/show_bug.cgi?id=2245916Related news
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.
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 2023-7578-01 - An update for squid is now available for Red Hat Enterprise Linux 7.6 Advanced Update Support. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-7576-01 - An update for squid is now available for Red Hat Enterprise Linux 7.7 Advanced Update Support. Issues addressed include a denial of service 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.
Squid is vulnerable to Denial of Service, where a remote attacker can perform DoS by sending ftp:// URLs in HTTP Request messages or constructing ftp:// URLs from FTP Native input.
Squid is vulnerable to Denial of Service, where a remote attacker can perform DoS by sending ftp:// URLs in HTTP Request messages or constructing ftp:// URLs from FTP Native input.