Description
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
- www.cve.org/CVERecord ↗
- nvd.nist.gov/vuln/detail/CVE-2023-4911 ↗
- access.redhat.com/errata/RHSA-2023:5453 ↗
- access.redhat.com/errata/RHSA-2023:5454 ↗
- access.redhat.com/errata/RHSA-2023:5455 ↗
- access.redhat.com/errata/RHSA-2023:5476 ↗
- access.redhat.com/errata/RHSA-2024:0033 ↗
- access.redhat.com/security/cve/CVE-2023-4911 ↗
- bugzilla.redhat.com/show_bug.cgi ↗
- www.qualys.com/2023/10/03/cve-2023-4911/looney-tunables-local-privilege-escalation-glibc-ld-so.txt ↗
- www.qualys.com/cve-2023-4911/ ↗
- packetstormsecurity.com/files/174986/glibc-ld.so-Local-Privilege-Escalation.html ↗
- packetstormsecurity.com/files/176288/Glibc-Tunables-Privilege-Escalation.html ↗
- seclists.org/fulldisclosure/2023/Oct/11 ↗
- www.openwall.com/lists/oss-security/2023/10/03/2 ↗
- www.openwall.com/lists/oss-security/2023/10/03/3 ↗
- www.openwall.com/lists/oss-security/2023/10/05/1 ↗
- www.openwall.com/lists/oss-security/2023/10/13/11 ↗
- www.openwall.com/lists/oss-security/2023/10/14/3 ↗
- www.openwall.com/lists/oss-security/2023/10/14/5 ↗
- www.openwall.com/lists/oss-security/2023/10/14/6 ↗
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4DBUQRRPB47TC3NJOUIBVWUGFHBJAFDL/ ↗
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DFG4P76UHHZEWQ26FWBXG76N2QLKKPZA/ ↗
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDAQWHTSVOCOZ5K6KPIWKRT3JX4RTZUR/ ↗
- security.gentoo.org/glsa/202310-03 ↗
- security.netapp.com/advisory/ntap-20231013-0006/ ↗
- www.debian.org/security/2023/dsa-5514 ↗
- www.exploit-db.com/exploits/52479 ↗
- cert-portal.siemens.com/productcert/html/ssa-082556.html ↗
- cert-portal.siemens.com/productcert/html/ssa-794697.html ↗
- cert-portal.siemens.com/productcert/html/ssa-831302.html ↗
- www.cisa.gov/known-exploited-vulnerabilities-catalog ↗
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This product uses the NVD API but is not endorsed or certified by the NVD. CVSS scores do not establish exploitation.