CVE-2017-12942
libunrar.a in UnRAR before 5.5.7 has a buffer overflow in the Unpack::LongLZ function.
02 Description
libunrar.a in UnRAR before 5.5.7 has a buffer overflow in the Unpack::LongLZ function.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 2.30% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 83.0% of scored records. A rank, not a probability.
- NVD base score
- 9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2017-08-18 14:00Z9 YR AGO
- Last updated
- 2024-08-05 18:51Z2 YR AGO
- Reserved
- 2017-08-18
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
- Data version
- 5.1
- Document digest
- 20e47c851471b6626359ee05c17bd63b656388729ccb707d3cfc02c98e532834
05 Affected products
06 References
- seclists.orghttp://seclists.org/oss-sec/2017/q3/290
- kc.mcafee.comhttps://kc.mcafee.com/corporate/index?page=content&id=SB10241
- security.gentoo.orgGLSA-201709-24https://security.gentoo.org/glsa/201709-24
07 Fixed in
Debian 12
- unrar-nonfree Fixed in 1:5.5.8-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- unrar-nonfree Fixed in 1:5.5.8-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- unrar-nonfree Fixed in 1:5.5.8-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- unrar-nonfree No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.