Out-of-bounds Read in Exiv2
CVE-2018-20096
There is a heap-based buffer over-read in the Exiv2::tEXtToDataBuf function of pngimage.cpp in Exiv2 0.27-RC3. A crafted input will lead to a remote denial of service attack.
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: 0.028 (85.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 85.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.028 · newest: 0.028 · change: 0.000
Affected products
- Exiv2 — versions 0.27
Weakness classification (CWE)
References
- github.com/Exiv2/exiv2/issues/590 (Exploit, Patch, Third Party Advisory, Issue Tracking)
- github.com/TeamSeri0us/pocs/tree/master/exiv2/20181206 (Exploit, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- access.redhat.com/errata/RHSA-2019:2101 (vendor-advisory)
Frequently asked questions
- What is CVE-2018-20096?
- CVE-2018-20096 is a medium-severity vulnerability in Exiv2, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2018-12-12.
- How severe is CVE-2018-20096?
- Medium severity. CVSS v3 base score is 6.5 out of 10.