Stack-based buffer overflow in IBM Spectrum Protect Backup-Archive Client - CVE-2021-29672

Vulnerability identifier: #VU67761

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-29672

CWE-ID: CWE-121

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error when processing the current locale settings. A local user can trigger a stack-based buffer overflow and execute arbitrary code with elevated privileges.

IBM Spectrum Protect Backup-Archive Client
Gentoo Linux
app-backup/tsm

Install updates from vendor's website.

IBM Spectrum Protect Backup-Archive Client - addressed in versions 7.1.8.11, 8.1.12.0
app-backup/tsm - update to 8.1.13.3

• https://www.ibm.com/support/pages/node/6445497
• https://exchange.xforce.ibmcloud.com/vulnerabilities/199479

• Multiple vulnerabilities in IBM Spectrum Protect Backup-Archive Client
• Gentoo update for IBM Spectrum Protect