CVE-2017-14121

low-risk
Published 2017-09-03

The DecodeNumber function in unrarlib.c in unrar 0.0.1 (aka unrar-free or unrar-gpl) suffers from a NULL pointer dereference flaw triggered by a crafted RAR archive. NOTE: this may be the same as one of the several test cases in the CVE-2017-11189 references.

Do I need to act?

-
0.19% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (2)

Unrar

Affected Vendors

Rarlab Debian

References (6)

Mailing List http://www.openwall.com/lists/oss-security/2017/08/20/1
Issue Tracking https://bugs.debian.org/874061
Mailing List https://lists.debian.org/debian-lts-announce/2021/02/msg00026.html
Mailing List http://www.openwall.com/lists/oss-security/2017/08/20/1
Issue Tracking https://bugs.debian.org/874061
Mailing List https://lists.debian.org/debian-lts-announce/2021/02/msg00026.html
26
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 1/34 · Minimal
Exposure 7/34 · Low