CVE-2023-5156: Glibc: dos due to memory leak in getaddrinfo.c
First published: Mon Sep 25 2023(Updated: )
A flaw was found in the GNU C Library. A recent fix for CVE-2023-4806 introduced the potential for a memory leak, which may result in an application crash.
Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GNU glibc | <2.39 | |
| Redhat Enterprise Linux | =8.0 | |
| Redhat Enterprise Linux | =9.0 | |
| GNU glibc | >=2.34<2.39 | |
| redhat/glibc | <2.39 | 2.39 |
| ubuntu/glibc | <2.35-0ubuntu3.5 | 2.35-0ubuntu3.5 |
| ubuntu/glibc | <2.37-0ubuntu2.2 | 2.37-0ubuntu2.2 |
| ubuntu/glibc | <2.38-1ubuntu5 | 2.38-1ubuntu5 |
| ubuntu/glibc | <2.38-1ubuntu5 | 2.38-1ubuntu5 |
| debian/glibc | 2.28-10+deb10u1 2.28-10+deb10u3 2.31-13+deb11u8 2.31-13+deb11u10 2.36-9+deb12u4 2.36-9+deb12u7 2.38-11 |
Remedy
https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=ec6b95c3303c700eb89eebeda2d7264cc184a796
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Reference Links
- http://www.openwall.com/lists/oss-security/2023/10/03/4
- http://www.openwall.com/lists/oss-security/2023/10/03/5
- http://www.openwall.com/lists/oss-security/2023/10/03/6
- http://www.openwall.com/lists/oss-security/2023/10/03/8
- https://access.redhat.com/security/cve/CVE-2023-5156
- https://bugzilla.redhat.com/show_bug.cgi?id=2240541
- https://sourceware.org/bugzilla/show_bug.cgi?id=30884
- https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=ec6b95c3303c700eb89eebeda2d7264cc184a796
- https://security.gentoo.org/glsa/202402-01
- https://launchpad.net/bugs/cve/CVE-2023-5156
- https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=ec6b95c3303c700eb89eebeda2d7264cc184a796
- https://sourceware.org/pipermail/libc-alpha/2023-September/151691.html
- https://sourceware.org/cgit/glibc/tree/advisories/GLIBC-SA-2023-0005
- https://security-tracker.debian.org/tracker/CVE-2023-5156
- https://access.redhat.com/security/cve/CVE-2023-4806
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2240543
- https://ubuntu.com/security/notices/USN-6541-1
- https://ubuntu.com/security/notices/USN-6541-2
- https://www.cve.org/CVERecord?id=CVE-2023-5156
- https://nvd.nist.gov/vuln/detail/CVE-2023-5156
- https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=5ee59ca371b99984232d7584fe2b1a758b4421d3
- https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=4473d1b87d04b25cdd0e0354814eeaa421328268
- https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=856bac55f98dc840e7c27cfa82262b933385de90
- https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=17092c0311f954e6f3c010f73ce3a78c24ac279a
- https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=8006457ab7e1cd556b919f477348a96fe88f2e49
- https://ubuntu.com/security/CVE-2023-5156
Frequently Asked Questions
What is CVE-2023-5156?
CVE-2023-5156 is a vulnerability in the GNU C Library that can cause a memory leak and application crashes.
What is the severity of CVE-2023-5156?
CVE-2023-5156 has a severity rating of high (7.5).
Which software is affected by CVE-2023-5156?
The GNU C Library version up to 2.39, GNU glibc version up to 2.39, Redhat Enterprise Linux 8.0, and Redhat Enterprise Linux 9.0 are affected by CVE-2023-5156.
How can CVE-2023-5156 be exploited?
CVE-2023-5156 can be exploited by an attacker to cause a memory leak, potentially leading to application crashes.
Are there any fixes available for CVE-2023-5156?
Yes, a fix is available for CVE-2023-5156. Update to GNU C Library version 2.39 or newer.
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