ISOMAN

CVE

CVE-2023-4911

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.

Severity
HIGH
CVSS
7.8
Published
Modified
NVD detailAll CVEs

Linked Releases

DistributionReleaseStatusEvidence
Ubuntu22.04.5 amd64 desktopunknownsource
Ubuntu22.04.5 amd64 live-serverunknownsource

References

  1. https://access.redhat.com/errata/RHSA-2023:5453
  2. https://access.redhat.com/errata/RHSA-2023:5454
  3. https://access.redhat.com/errata/RHSA-2023:5455
  4. https://access.redhat.com/errata/RHSA-2023:5476
  5. https://access.redhat.com/errata/RHSA-2024:0033
  6. https://access.redhat.com/security/cve/CVE-2023-4911
  7. https://bugzilla.redhat.com/show_bug.cgi?id=2238352
  8. https://www.qualys.com/2023/10/03/cve-2023-4911/looney-tunables-local-privilege-escalation-glibc-ld-so.txt
  9. https://www.qualys.com/cve-2023-4911/
  10. http://packetstormsecurity.com/files/174986/glibc-ld.so-Local-Privilege-Escalation.html
  11. http://packetstormsecurity.com/files/176288/Glibc-Tunables-Privilege-Escalation.html
  12. http://seclists.org/fulldisclosure/2023/Oct/11
  13. http://www.openwall.com/lists/oss-security/2023/10/03/2
  14. http://www.openwall.com/lists/oss-security/2023/10/03/3
  15. http://www.openwall.com/lists/oss-security/2023/10/05/1
  16. http://www.openwall.com/lists/oss-security/2023/10/13/11
  17. http://www.openwall.com/lists/oss-security/2023/10/14/3
  18. http://www.openwall.com/lists/oss-security/2023/10/14/5
  19. http://www.openwall.com/lists/oss-security/2023/10/14/6
  20. https://access.redhat.com/errata/RHSA-2023:5453