Heap-based Buffer Overflow Affecting glibc package, versions <0:2.28-225.el8_8.6
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Test your applications- Snyk ID SNYK-CENTOS8-GLIBC-5930639
- published 4 Oct 2023
- disclosed 3 Oct 2023
Introduced: 3 Oct 2023
CVE-2023-4911 Open this link in a new tabHow to fix?
Upgrade Centos:8 glibc to version 0:2.28-225.el8_8.6 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBC_TUNABLES environment variables when launching binaries with SUID permission to execute code with elevated privileges.
References
- https://access.redhat.com/security/cve/CVE-2023-4911
- https://bugzilla.redhat.com/show_bug.cgi?id=2238352
- https://www.qualys.com/2023/10/03/cve-2023-4911/looney-tunables-local-privilege-escalation-glibc-ld-so.txt
- https://www.qualys.com/cve-2023-4911/
- http://www.openwall.com/lists/oss-security/2023/10/03/2
- http://www.openwall.com/lists/oss-security/2023/10/03/3
- https://www.debian.org/security/2023/dsa-5514
- https://security.gentoo.org/glsa/202310-03
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4DBUQRRPB47TC3NJOUIBVWUGFHBJAFDL/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDAQWHTSVOCOZ5K6KPIWKRT3JX4RTZUR/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DFG4P76UHHZEWQ26FWBXG76N2QLKKPZA/
- http://www.openwall.com/lists/oss-security/2023/10/05/1
- https://access.redhat.com/errata/RHSA-2023:5455
- http://seclists.org/fulldisclosure/2023/Oct/11
- http://packetstormsecurity.com/files/174986/glibc-ld.so-Local-Privilege-Escalation.html
- https://security.netapp.com/advisory/ntap-20231013-0006/
- http://www.openwall.com/lists/oss-security/2023/10/13/11
- http://www.openwall.com/lists/oss-security/2023/10/14/3
- http://www.openwall.com/lists/oss-security/2023/10/14/5
- http://www.openwall.com/lists/oss-security/2023/10/14/6
- http://packetstormsecurity.com/files/176288/Glibc-Tunables-Privilege-Escalation.html
- https://github.com/projectdiscovery/nuclei-templates/blob/master/code/cves/2023/CVE-2023-4911.yaml
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog