There's an issue with grub2 in all versions before 2.06 when handling squashfs filesystems containing a symbolic link with name length of UINT32 bytes in size. The name size leads to an arithmetic overflow leading to a zero-size allocation further causing a heap-based buffer overflow with attacker controlled data.
References
Link | Resource |
---|---|
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html | Mailing List Third Party Advisory |
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html | Mailing List Third Party Advisory |
https://bugzilla.redhat.com/show_bug.cgi?id=1852022 | Issue Tracking Third Party Advisory |
https://security.gentoo.org/glsa/202104-05 | Third Party Advisory |
https://security.netapp.com/advisory/ntap-20200731-0008/ | Third Party Advisory |
https://usn.ubuntu.com/4432-1/ | Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: redhat
Published: 2020-07-30T12:49:31
Updated: 2021-05-01T01:08:04
Reserved: 2020-06-17T00:00:00
Link: CVE-2020-14309
JSON object: View
NVD Information
Status : Analyzed
Published: 2020-07-30T13:15:10.987
Modified: 2022-04-28T18:58:26.240
Link: CVE-2020-14309
JSON object: View
Redhat Information
No data.