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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.

• http://www.openwall.com/lists/oss-security/2023/10/14/5 x_transferred
• https://www.exploit-db.com/exploits/52479
• http://packetstormsecurity.com/files/174986/glibc-ld.so-Local-Privilege-Escalation.html x_transferred
• http://packetstormsecurity.com/files/176288/Glibc-Tunables-Privilege-Escalation.html x_transferred
• http://seclists.org/fulldisclosure/2023/Oct/11 x_transferred
• http://www.openwall.com/lists/oss-security/2023/10/03/2 x_transferred
• http://www.openwall.com/lists/oss-security/2023/10/03/3 x_transferred
• http://www.openwall.com/lists/oss-security/2023/10/05/1 x_transferred
• http://www.openwall.com/lists/oss-security/2023/10/13/11 x_transferred
• http://www.openwall.com/lists/oss-security/2023/10/14/3 x_transferred
• http://www.openwall.com/lists/oss-security/2023/10/14/6 x_transferred
• https://access.redhat.com/errata/RHSA-2023:5453 vendor-advisoryx_refsource_REDHAT
• https://access.redhat.com/errata/RHSA-2023:5454 vendor-advisoryx_refsource_REDHAT
• https://access.redhat.com/errata/RHSA-2023:5455 vendor-advisoryx_refsource_REDHAT
• https://access.redhat.com/errata/RHSA-2023:5476 vendor-advisoryx_refsource_REDHAT
• https://access.redhat.com/errata/RHSA-2024:0033 vendor-advisoryx_refsource_REDHAT
• https://access.redhat.com/security/cve/CVE-2023-4911 vdb-entryx_refsource_REDHAT
• https://bugzilla.redhat.com/show_bug.cgi?id=2238352 issue-trackingx_refsource_REDHAT
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4DBUQRRPB47TC3NJOUIBVWUGFHBJAFDL/ x_transferred
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DFG4P76UHHZEWQ26FWBXG76N2QLKKPZA/ x_transferred
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDAQWHTSVOCOZ5K6KPIWKRT3JX4RTZUR/ x_transferred
• https://security.gentoo.org/glsa/202310-03 x_transferred
• https://security.netapp.com/advisory/ntap-20231013-0006/ x_transferred
• https://www.debian.org/security/2023/dsa-5514 x_transferred
• 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/
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-4911 government-resource
• https://cert-portal.siemens.com/productcert/html/ssa-831302.html
• https://cert-portal.siemens.com/productcert/html/ssa-794697.html
• https://cert-portal.siemens.com/productcert/html/ssa-082556.html