Vulnerability Description
An assertion abort was found in upx MemBuffer::alloc() in mem.cpp, in version UPX 4.0.0. The flow allows attackers to cause a denial of service (abort) via a crafted file.
CVSS Score
5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Upx | Upx | 4.0.0 |
| Redhat | Enterprise Linux | 7.0 |
| Fedoraproject | Fedora | 33 |
Related Weaknesses (CWE)
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1948696Issue TrackingPatchThird Party Advisory
- https://github.com/upx/upx/commit/28e761cd42211dfe0124b7a29b2f74730f453e46PatchThird Party Advisory
- https://github.com/upx/upx/issues/486ExploitIssue TrackingThird Party Advisory
- https://github.com/upx/upx/pull/487ExploitPatchThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1948696Issue TrackingPatchThird Party Advisory
- https://github.com/upx/upx/commit/28e761cd42211dfe0124b7a29b2f74730f453e46PatchThird Party Advisory
- https://github.com/upx/upx/issues/486ExploitIssue TrackingThird Party Advisory
- https://github.com/upx/upx/pull/487ExploitPatchThird Party Advisory
FAQ
What is CVE-2021-30501?
CVE-2021-30501 is a vulnerability with a CVSS score of 5.5 (MEDIUM). An assertion abort was found in upx MemBuffer::alloc() in mem.cpp, in version UPX 4.0.0. The flow allows attackers to cause a denial of service (abort) via a crafted file.
How severe is CVE-2021-30501?
CVE-2021-30501 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-30501?
Check the references section above for vendor advisories and patch information. Affected products include: Upx Upx, Redhat Enterprise Linux, Fedoraproject Fedora.