PT-2021-11931 · Libmysofa+2 · Libmysofa+2

Published 2020-08-26 · Updated 2023-10-21 · CVE-2020-36149

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: libmysofa versions 0.5 through 1.1

Description: The issue arises from incorrect handling of input data in the changeAttribute function, which can lead to a NULL pointer dereference and result in a segmentation fault error when restrictive memory protection is in place. In environments without memory restrictions, such as embedded systems, this can cause a near NULL pointer overwrite.

Recommendations: For libmysofa versions 0.5 through 1.1, consider disabling the changeAttribute function as a temporary workaround until a patch is available. Restrict access to the changeAttribute function to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2025-12497

CVE-2020-36149

OPENSUSE-SU-2021:0444-1

OPENSUSE-SU-2021:0459-1

OPENSUSE-SU-2021_0444-1

OPENSUSE-SU-2024:10960-1

ROSA-SA-2023-2256

Affected Products

Astra Linux

Suse

Libmysofa

References · 42

• 🔥 https://github.com/hoene/libmysofa/issues/137 · Exploit
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2025-0923SE17 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se47-bulletin-2025-1020SE47 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RQLNZOVVONQSZZJHQVZT6NMOUUDMGBBR · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-12497 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-36149 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-36149 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-36149 · Security Note
• https://osv.dev/vulnerability/CVE-2020-36149 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-36149 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-36149 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-36149 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2021:0444-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2021:0459-1 · Vendor Advisory
• https://bugzilla.suse.com/1149924 · Note