Vulnerability in Exiv2
CVE-2021-34335
Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. A floating point exception (FPE) due to an integer divide by zero was found in Exiv2 versions v0.27.4 and earlier. The FPE is triggered when Exiv2 is used to print the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when printing the interpreted (translated) data, which is a less frequently used Exiv2 operation that requires an extra command line option (`-p t` or `-P t`). The bug is fixed in version v0.27.5.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.010 (60.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 60.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Exiv2 — versions <= 0.27.4
- Fedoraproject Fedora — versions 33, 34
Weakness classification (CWE)
References
- github.com/Exiv2/exiv2/security/advisories/GHSA-pvjp-m4f6-q984 (Third Party Advisory)
- github.com/Exiv2/exiv2/pull/1750 (Patch, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- security.gentoo.org/glsa/202312-06 (vendor-advisory)
Frequently asked questions
- What is CVE-2021-34335?
- CVE-2021-34335 is a medium-severity vulnerability in Exiv2, classified under Divide By Zero. CVSS score: 4.7/10. Published 2021-08-09.
- How severe is CVE-2021-34335?
- Medium severity. CVSS v3 base score is 4.7 out of 10.