CVE-2020-14309

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.
Configurations

Configuration 1 (hide)

cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*

History

21 Nov 2024, 05:02

Type Values Removed Values Added
References () 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/msg00016.html - Mailing List, Third Party Advisory
References () http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html - Mailing List, Third Party Advisory () http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html - Mailing List, Third Party Advisory
References () https://bugzilla.redhat.com/show_bug.cgi?id=1852022 - Issue Tracking, Third Party Advisory () https://bugzilla.redhat.com/show_bug.cgi?id=1852022 - Issue Tracking, Third Party Advisory
References () https://security.gentoo.org/glsa/202104-05 - Third Party Advisory () https://security.gentoo.org/glsa/202104-05 - Third Party Advisory
References () https://security.netapp.com/advisory/ntap-20200731-0008/ - Third Party Advisory () https://security.netapp.com/advisory/ntap-20200731-0008/ - Third Party Advisory
References () https://usn.ubuntu.com/4432-1/ - Third Party Advisory () https://usn.ubuntu.com/4432-1/ - Third Party Advisory

Information

Published : 2020-07-30 13:15

Updated : 2024-11-21 05:02


NVD link : CVE-2020-14309

Mitre link : CVE-2020-14309

CVE.ORG link : CVE-2020-14309


JSON object : View

Products Affected

gnu

  • grub2

opensuse

  • leap
CWE
CWE-190

Integer Overflow or Wraparound

CWE-787

Out-of-bounds Write