Buffer overflow in Gdraheim Zziplib
CVE-2018-6381
In ZZIPlib 0.13.67, 0.13.66, 0.13.65, 0.13.64, 0.13.63, 0.13.62, 0.13.61, 0.13.60, 0.13.59, 0.13.58, 0.13.57 and 0.13.56 there is a segmentation fault caused by invalid memory access in the zzip_disk_fread function (zzip/mmapped.c) because the size variable is not validated against the amount of file->stored data.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.017 (76.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000
Affected products
- Gdraheim Zziplib — versions 0.13.67
- Canonical Ubuntu Linux — versions 14.04, 16.04, 17.10
Weakness classification (CWE)
References
- usn.ubuntu.com/3699-1/ (vendor-advisory, Third Party Advisory)
- github.com/gdraheim/zziplib/issues/12 (Exploit, Third Party Advisory, Issue Tracking)
- lists.debian.org/debian-lts-announce/2020/06/msg00029.html (mailing-list)
- github.com/Hack-Me/Pocs_for_Multi_Versions/tree/main/CVE-2018-6381
Frequently asked questions
- What is CVE-2018-6381?
- CVE-2018-6381 is a medium-severity vulnerability in Gdraheim Zziplib, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.5/10. Published 2018-01-29.
- How severe is CVE-2018-6381?
- Medium severity. CVSS v3 base score is 6.5 out of 10.