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Debian Security Advisory 5354-1
Debian Linux Security Advisory 5354-1 - Multiple security vulnerabilities were discovered in snort, a flexible Network Intrusion Detection System, which could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or bypass filtering technology on an affected device and ex-filtrate data from a compromised host.
-----BEGIN PGP SIGNED MESSAGE-----Hash: SHA512- -------------------------------------------------------------------------Debian Security Advisory DSA-5354-1 [email protected]://www.debian.org/security/ Markus KoschanyFebruary 18, 2023 https://www.debian.org/security/faq- -------------------------------------------------------------------------Package : snortCVE ID : CVE-2020-3299 CVE-2020-3315 CVE-2021-1223 CVE-2021-1224 CVE-2021-1236 CVE-2021-1494 CVE-2021-1495 CVE-2021-34749 CVE-2021-40114Debian Bug : 1021276Multiple security vulnerabilities were discovered in snort, a flexible NetworkIntrusion Detection System, which could allow an unauthenticated, remoteattacker to cause a denial of service (DoS) condition or bypass filteringtechnology on an affected device and ex-filtrate data from a compromised host.For the stable distribution (bullseye), these problems have been fixed inversion 2.9.20-0+deb11u1.We recommend that you upgrade your snort packages.For the detailed security status of snort please refer toits security tracker page at:https://security-tracker.debian.org/tracker/snortFurther information about Debian Security Advisories, how to applythese updates to your system and frequently asked questions can befound at: https://www.debian.org/security/Mailing list: [email protected] PGP SIGNATURE-----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Û5k-----END PGP SIGNATURE-----Related news
Multiple Cisco products are affected by a vulnerability in the way the Snort detection engine processes ICMP traffic that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper memory resource management while the Snort detection engine is processing ICMP packets. An attacker could exploit this vulnerability by sending a series of ICMP packets through an affected device. A successful exploit could allow the attacker to exhaust resources on the affected device, causing the device to reload.
A vulnerability in Server Name Identification (SNI) request filtering of Cisco Web Security Appliance (WSA), Cisco Firepower Threat Defense (FTD), and the Snort detection engine could allow an unauthenticated, remote attacker to bypass filtering technology on an affected device and exfiltrate data from a compromised host. This vulnerability is due to inadequate filtering of the SSL handshake. An attacker could exploit this vulnerability by using data from the SSL client hello packet to communicate with an external server. A successful exploit could allow the attacker to execute a command-and-control attack on a compromised host and perform additional data exfiltration attacks.
Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configured file policy for HTTP. The vulnerability is due to incorrect handling of specific HTTP header parameters. An attacker could exploit this vulnerability by sending crafted HTTP packets through an affected device. A successful exploit could allow the attacker to bypass a configured file policy for HTTP packets and deliver a malicious payload.
Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configured file policy for HTTP. The vulnerability is due to incorrect handling of an HTTP range header. An attacker could exploit this vulnerability by sending crafted HTTP packets through an affected device. A successful exploit could allow the attacker to bypass configured file policy for HTTP packets and deliver a malicious payload.
Multiple Cisco products are affected by a vulnerability with TCP Fast Open (TFO) when used in conjunction with the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configured file policy for HTTP. The vulnerability is due to incorrect detection of the HTTP payload if it is contained at least partially within the TFO connection handshake. An attacker could exploit this vulnerability by sending crafted TFO packets with an HTTP payload through an affected device. A successful exploit could allow the attacker to bypass configured file policy for HTTP packets and deliver a malicious payload.
Multiple Cisco products are affected by a vulnerability in the Snort application detection engine that could allow an unauthenticated, remote attacker to bypass the configured policies on an affected system. The vulnerability is due to a flaw in the detection algorithm. An attacker could exploit this vulnerability by sending crafted packets that would flow through an affected system. A successful exploit could allow the attacker to bypass the configured policies and deliver a malicious payload to the protected network.
Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configured File Policy for HTTP. The vulnerability is due to incorrect detection of modified HTTP packets used in chunked responses. An attacker could exploit this vulnerability by sending crafted HTTP packets through an affected device. A successful exploit could allow the attacker to bypass a configured File Policy for HTTP packets and deliver a malicious payload.
Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass the configured file policies on an affected system. The vulnerability is due to errors in how the Snort detection engine handles specific HTTP responses. An attacker could exploit this vulnerability by sending crafted HTTP packets that would flow through an affected system. A successful exploit could allow the attacker to bypass the configured file policies and deliver a malicious payload to the protected network.