CVE-2020-14311
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2020-14311
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-14311.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2020-14311
- Downstream
- Related
- Published
- 2020-07-31T22:15:11Z
- Modified
- 2025-08-09T19:01:26Z
- Severity
-
- 6.0 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References
-
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html
- http://www.openwall.com/lists/oss-security/2021/09/17/2
- http://www.openwall.com/lists/oss-security/2021/09/17/4
- http://www.openwall.com/lists/oss-security/2021/09/21/1
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14311
- https://security.gentoo.org/glsa/202104-05
- https://usn.ubuntu.com/4432-1/