PT-2024-2672 · Yasm+2 · Yasm+2

Vorfreuder · Published 2024-01-02 · Updated 2024-04-09 · CVE-2023-49556

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions YASM version 1.3.0.86.g9def

Description The issue is related to a buffer overflow vulnerability in the expr delete term() function of the YASM assembler, which can lead to a denial of service. This vulnerability allows a remote attacker to cause a denial of service via the expr delete term function in the libyasm/expr.c component.

Recommendations For YASM version 1.3.0.86.g9def, consider disabling the expr delete term() function as a temporary workaround until a patch is available. Restrict access to the libyasm/expr.c component 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

DoS

Resource Exhaustion

Buffer Overflow

Weakness Enumeration

CWE-400

CWE-120

Related Identifiers

AZL-33355

AZL-35388

BDU:2024-02781

CVE-2023-49556

Affected Products

Debian

Red Os

Yasm

References · 18

• 🔥 https://github.com/yasm/yasm/issues/250 · Exploit
• https://bdu.fstec.ru/vul/2024-02781 · Security Note
• https://ubuntu.com/security/CVE-2023-49556 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-35388 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-49556 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-49556 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-49556 · Security Note
• https://osv.dev/vulnerability/AZL-33355 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-49556 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-49556 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-49556 · Vendor Advisory
• https://redos.red-soft.ru/support/secure · Note
• https://t.me/cibsecurity/74224 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1742359895033184660 · Twitter Post
• https://twitter.com/CVEnew/status/1742329740726583443 · Twitter Post