Detections
Analytics
CVE-2020-14309
medium
Description
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
https://usn.ubuntu.com/4432-1/
https://security.netapp.com/advisory/ntap-20200731-0008/
https://security.gentoo.org/glsa/202104-05
https://bugzilla.redhat.com/show_bug.cgi?id=1852022
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html