Out-of-bounds Read in Rarlab Unrar

CVE-2017-12941

libunrar.a in UnRAR before 5.5.7 has an out-of-bounds read in the Unpack::Unpack20 function.

Vulnerability class: Buffer Overflow

EPSS: 0.022 (80.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2017-12941?
CVE-2017-12941 is a critical-severity vulnerability in Rarlab Unrar, classified under Out-of-bounds Read. CVSS score: 9.8/10. Published 2017-08-18.
How severe is CVE-2017-12941?
Critical severity. CVSS v3 base score is 9.8 out of 10.