Cloud Vulnerability DB
A community-led vulnerabilities database
Vulnerability DatabaseCVE-2023-49556
CVE-2023-49556:
NixOS vulnerability analysis and mitigation
Overview
Buffer Overflow vulnerability in YASM 1.3.0.86.g9def allows a remote attacker to cause a denial of service via the expr_delete_term function in the libyasm/expr.c component. The vulnerability was discovered and disclosed in November 2023 (GitHub Issue).
Technical details
The vulnerability exists in the expr_delete_term function located in libyasm/expr.c at line 1019. When triggered, it causes a heap-buffer-overflow, which can be detected using Address Sanitizer (ASAN). The issue has been assigned a CVSS v3.1 base score of 5.5 MEDIUM (Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H) (NVD).
Impact
The successful exploitation of this vulnerability can lead to a denial of service condition in the affected YASM system. The attack primarily affects the availability of the service, with no direct impact on confidentiality or integrity (NVD).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
Free Vulnerability Assessment
Benchmark your Cloud Security Posture
Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.
Additional Wiz resources
Get a personalized demo
Ready to see Wiz in action?
"Best User Experience I have ever seen, provides full visibility to cloud workloads."
David EstlickCISO
"Wiz provides a single pane of glass to see what is going on in our cloud environments."
Adam FletcherChief Security Officer
"We know that if Wiz identifies something as critical, it actually is."
Greg PoniatowskiHead of Threat and Vulnerability Management