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Vulnerability · Published Aug 9, 2021 · Assigned by GitHub_M

CVE-2021-34335Denial of service due to FPE in Exiv2::Internal::resolveLens0xffff

Medium 4.7

In plain English

A medium-severity security flaw in exiv2 from Exiv2. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 63% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.7Medium
Exploit odds (30 days)1.0%top 37.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20exiv20.27.5-r0ALPINE-CVE-2021-34335
Alpine:v3.21exiv20.27.5-r0ALPINE-CVE-2021-34335
Alpine:v3.22exiv20.27.5-r0ALPINE-CVE-2021-34335
Alpine:v3.23exiv20.27.5-r0ALPINE-CVE-2021-34335
Alpine:v3.24exiv20.27.5-r0ALPINE-CVE-2021-34335
Debian:12exiv20.27.5-1DEBIAN-CVE-2021-34335
Debian:13exiv20.27.5-1DEBIAN-CVE-2021-34335
Debian:14exiv20.27.5-1DEBIAN-CVE-2021-34335
Ubuntu:22.04:LTSexiv20.27.3-3ubuntu4UBUNTU-CVE-2021-34335

Affected products (as reported)

VendorProductVersions
Exiv2 exiv2 <= 0.27.4

Weakness: CWE-369 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

References