CVE-2023-4911

GNU C Library Buffer Overflow Vulnerability

Bootstrap Os

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.

3. Okt 2023

Ausgewertete Quellen

• Debian
  https://www.debian.org/security/2023/dsa-5514
• Red Hat
  https://access.redhat.com/errata/RHSA-2023:5453
• Red Hat
  https://access.redhat.com/errata/RHSA-2023:5454
• Red Hat
  https://access.redhat.com/errata/RHSA-2023:5455
• Red Hat
  https://access.redhat.com/errata/RHSA-2023:5476
• Red Hat
  https://access.redhat.com/errata/RHSA-2024:0033
• Red Hat
  https://access.redhat.com/security/cve/CVE-2023-4911
• Red Hat
  https://bugzilla.redhat.com/show_bug.cgi?id=2238352
• Hinweis
  http://packetstormsecurity.com/files/174986/glibc-ld.so-Local-Privilege-Escalation.html
• Hinweis
  http://packetstormsecurity.com/files/176288/Glibc-Tunables-Privilege-Escalation.html
• Hinweis
  http://seclists.org/fulldisclosure/2023/Oct/11
• Hinweis
  https://cert-portal.siemens.com/productcert/html/ssa-082556.html
• Hinweis
  https://cert-portal.siemens.com/productcert/html/ssa-794697.html
• Hinweis
  https://cert-portal.siemens.com/productcert/html/ssa-831302.html
• Hinweis
  https://security.gentoo.org/glsa/202310-03
• Hinweis
  https://security.netapp.com/advisory/ntap-20231013-0006/
• Hinweis
  https://www.exploit-db.com/exploits/52479
• Hinweis
  https://www.qualys.com/2023/10/03/cve-2023-4911/looney-tunables-local-privilege-escalation-glibc-ld-so.txt
• Hinweis
  https://www.qualys.com/cve-2023-4911/
• CISA
  https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-4911
• CISA
  GNU C Library Buffer Overflow Vulnerability
• NVD
  CVE-2023-4911