Buffer overflow in GNU Sharutils
CVE-2018-1000097
Sharutils sharutils (unshar command) version 4.15.2 contains a Buffer Overflow vulnerability in Affected component on the file unshar.c at line 75, function looks_like_c_code. Failure to perform checking of the buffer containing input line. that can result in Could lead to code execution. This attack appear to be exploitable via Victim have to run unshar command on a specially crafted file..
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.020 (79.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000
Affected products
- GNU Sharutils — versions 4.15.2
- Canonical Ubuntu Linux — versions 14.04, 16.04, 17.10
- Debian Linux — versions 8.0, 9.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- usn.ubuntu.com/3605-1/ (vendor-advisory, Third Party Advisory)
- www.debian.org/security/2018/dsa-4167 (vendor-advisory, Third Party Advisory)
- seclists.org/bugtraq/2018/Feb/54 (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-1000097?
- CVE-2018-1000097 is a high-severity vulnerability in GNU Sharutils, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2018-03-13.
- How severe is CVE-2018-1000097?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2018-1000097 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.