PT-2023-23435 · Yasm+1 · Yasm+1

Daisypoop · Published 2023-05-17 · Updated 2025-01-22 · CVE-2023-31723

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 1.3.0.55.g101bc

Description A segmentation violation was discovered in yasm via the function expand mmac params at /nasm/nasm-pp.c.

Recommendations For yasm version 1.3.0.55.g101bc, as a temporary workaround, consider disabling the expand mmac params function until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Related Identifiers

AZL-26739

AZL-35390

CVE-2023-31723

Affected Products

Debian

Yasm

References · 14

• 🔥 https://github.com/yasm/yasm/issues/220 · Exploit
• 🔥 https://github.com/DaisyPo/fuzzing-vulncollect/blob/main/yasm/SEGV/nasm-pp.c:4008%20in%20expand_mmac_params/README.md · Exploit
• https://cve.org/CVERecord?id=CVE-2023-31723 · Security Note
• https://ubuntu.com/security/CVE-2023-31723 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-31723 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-31723 · Security Note
• https://osv.dev/vulnerability/AZL-35390 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-26739 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-31723 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-31723 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-31723 · Vendor Advisory
• https://t.me/cvenotify/51144 · Telegram Post
• https://t.me/cibsecurity/64323 · Telegram Post
• https://t.me/cvenotify/50656 · Telegram Post