Security Bulletin: Stack-based Buffer Overflow vulnerabilities in IBM Spectrum Protect Back-up Archive Client and IBM Spectrum Protect for Space Management (CVE-2021-29672, CVE-2021-20546)

Summary

IBM Spectrum Protect Backup-Archive Client and IBM Spectrum Protect for Space Management are vulnerable to stack-based buffer overflows caused by improper bounds checking. UDPATED: 14 June 2021 - Added 7.1 fix. UPDATED: 25 June 2021 - Added 8.1.9.2 fix for Macintosh

Vulnerability Details

CVEID:CVE-2021-29672
**DESCRIPTION:**IBM Spectrum Protect client is vulnerable to a stack-based buffer overflow, caused by improper bounds checking when processing the current locale settings. A local attacker could overflow a buffer and execute arbitrary code on the system with elevated privileges or cause the application to crash.
CVSS Base score: 8.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/199479 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID:CVE-2021-20546
**DESCRIPTION:**IBM Spectrum Protect Client is vulnerable to a stack-based buffer overflow, caused by improper bounds checking. A local attacker could overflow a buffer and cause the application to crash.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/198934 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

IBM Spectrum Protect for Space Management| 8.1.0.0-8.1.11.0
7.1.0.0-7.1.8.10

Remediation/Fixes

IBM Spectrum Protect
Backup-Archive Client Release|First Fixing
VRM Level|Platform|Link to Fix
—|—|—|—
8.1| 8.1.12| AIX
Linux
Macintosh
Solaris
Windows| <https://www.ibm.com/support/pages/node/6443671&gt;
8.1
| 8.1.9.2*****
| Macintosh*****
| <https://www.ibm.com/support/pages/node/589103&gt;
7.1
| 7.1.8.11
| AIX
HP-UX
Linux
Macintosh
Solaris
Windows| <https://www.ibm.com/support/pages/node/316619&gt;

*****An 8.1.9.2 fix was provided for Macintosh because the Spectrum Protect Backup-Archive Client was stabilized at 8.1.9 for older Mac OS levels.
Refer to <https://www.ibm.com/support/pages/node/660995&gt; for more information.

IBM Spectrum Protect for
Space Management Release|First Fixing
VRM Level|Platform|Link to Fix
—|—|—|—
8.1| 8.1.12| AIX
Linux| <https://www.ibm.com/support/pages/node/6416187&gt;
7.1
| 7.1.8.11
| AIX
Linux
| <https://www.ibm.com/support/pages/node/316075&gt;

Workarounds and Mitigations

None