ISOMAN

CVE

CVE-2020-14311

There is an issue with grub2 before version 2.06 while handling symlink on ext filesystems. A filesystem containing a symbolic link with an inode size of UINT32_MAX causes an arithmetic overflow leading to a zero-sized memory allocation with subsequent heap-based buffer overflow.

Severity
MEDIUM
CVSS
5.7
Published
Modified
NVD detailAll CVEs

Linked Releases

DistributionReleaseStatusEvidence
Ubuntu20.04.6 amd64 desktopunknownsource
Ubuntu20.04.6 amd64 live-serverunknownsource
Ubuntu18.04.6 amd64 desktopunknownsource
Ubuntu18.04.6 amd64 live-serverunknownsource

References

  1. http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html
  2. http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html
  3. http://www.openwall.com/lists/oss-security/2021/09/17/2
  4. http://www.openwall.com/lists/oss-security/2021/09/17/4
  5. http://www.openwall.com/lists/oss-security/2021/09/21/1
  6. https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14311
  7. https://security.gentoo.org/glsa/202104-05
  8. https://usn.ubuntu.com/4432-1/
  9. http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html
  10. http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html
  11. http://www.openwall.com/lists/oss-security/2021/09/17/2
  12. http://www.openwall.com/lists/oss-security/2021/09/17/4
  13. http://www.openwall.com/lists/oss-security/2021/09/21/1
  14. https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14311
  15. https://security.gentoo.org/glsa/202104-05
  16. https://usn.ubuntu.com/4432-1/