Cloud Vulnerability DB
An open project to list all known cloud vulnerabilities and Cloud Service Provider security issues
Vulnerability DatabaseCVE-2023-33552
CVE-2023-33552:
NixOS vulnerability analysis and mitigation
Overview
A Heap Buffer Overflow vulnerability was discovered in the erofsreadone_data function at data.c in erofs-utils v1.6. This vulnerability, tracked as CVE-2023-33552, allows remote attackers to execute arbitrary code via a crafted erofs filesystem image (NVD).
Technical details
The vulnerability exists in the erofsreadonedata function where the variable len depends on map->mplen, which in turn depends on inode->isize. The value is imported from the image file without proper validation, leading to a heap buffer overflow. The issue has been assigned a CVSS v3.1 base score of 7.8 (HIGH) with vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H (NVD, [GitHub Issue](https://github.com/lometsj/blogrepo/issues/1)).
Impact
The vulnerability allows remote attackers to execute arbitrary code through a specially crafted erofs filesystem image. When exploited, it can lead to heap corruption and potential arbitrary code execution (NVD).
Mitigation and workarounds
The vulnerability has been patched in subsequent releases. Fedora has released security updates for affected versions in Fedora 38 (erofs-utils-1.6-3.fc38) and Fedora 39 (erofs-utils-1.6-3.fc39) to address this issue (Fedora 38 Update, Fedora 39 Update).
Additional resources
Source: This report was generated using AI
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.
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