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CVE-2023-4813

Status Candidate

Overview

A flaw was found in glibc. In an uncommon situation, the gaih_inet function may use memory that has been freed, resulting in an application crash. This issue is only exploitable when the getaddrinfo function is called and the hosts database in /etc/nsswitch.conf is configured with SUCCESS=continue or SUCCESS=merge.

Related Files

Ubuntu Security Notice USN-6541-1
Posted Dec 8, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6541-1 - It was discovered that the GNU C Library was not properly handling certain memory operations. An attacker could possibly use this issue to cause a denial of service. It was discovered that the GNU C library was not properly implementing a fix for CVE-2023-4806 in certain cases, which could lead to a memory leak. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 23.04.

tags | advisory, denial of service, memory leak
systems | linux, ubuntu
advisories | CVE-2023-4806, CVE-2023-4813, CVE-2023-5156
SHA-256 | b85f9f52093ce10aa6b4c70c75704a38cdff1338bd3d60b1e6b36ff30dbd6126
Red Hat Security Advisory 2023-5455-01
Posted Oct 6, 2023
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2023-5455-01 - The glibc packages provide the standard C libraries, POSIX thread libraries, standard math libraries, and the name service cache daemon used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly. Issues addressed include buffer overflow, privilege escalation, and use-after-free vulnerabilities.

tags | advisory, overflow, vulnerability
systems | linux, redhat, osx
advisories | CVE-2023-4527, CVE-2023-4806, CVE-2023-4813, CVE-2023-4911
SHA-256 | c539e392dc47fc652213fbb778378e740f14ab77e224cc908245d886a1ba267b
Red Hat Security Advisory 2023-5453-01
Posted Oct 6, 2023
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2023-5453-01 - The glibc packages provide the standard C libraries, POSIX thread libraries, standard math libraries, and the name service cache daemon used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly. Issues addressed include buffer overflow, privilege escalation, and use-after-free vulnerabilities.

tags | advisory, overflow, vulnerability
systems | linux, redhat, osx
advisories | CVE-2023-4527, CVE-2023-4806, CVE-2023-4813, CVE-2023-4911
SHA-256 | c88515dc1b69c0282a2afe7e6d0ea45ea6534432b06726593717f6d8662d76b1
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