CVE-2020-14309

 

Published at: - 30-07-2020 03:15

Last modified: - 28-04-2022 08:58

Total changes: - 4

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

 

Verification logic

 

Reference

• https://bugzilla.redhat.com/show_bug.cgi?id=1852022
• https://security.netapp.com/advisory/ntap-20200731-0008/
• USN-4432-1-Third Party Advisory
• openSUSE-SU-2020:1169-Mailing List, Third Party Advisory
• openSUSE-SU-2020:1168-Mailing List, Third Party Advisory
• GLSA-202104-05-Third Party Advisory

 

Keywords

NVD

 

CVE-2020-14309

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures