Vulnerability · Published Feb 23, 2021 · Assigned by redhat

CVE-2021-3407

High 7.8

In plain English

A high-severity double free in mupdf. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 50.2% (higher than 99% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)50.2%top 1.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A flaw was found in mupdf 1.18.0. Double free of object during linearization may lead to memory corruption and other potential consequences.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20mupdf1.18.0-r1ALPINE-CVE-2021-3407
Alpine:v3.21mupdf1.18.0-r1ALPINE-CVE-2021-3407
Alpine:v3.22mupdf1.18.0-r1ALPINE-CVE-2021-3407
Alpine:v3.23mupdf1.18.0-r1ALPINE-CVE-2021-3407
Alpine:v3.24mupdf1.18.0-r1ALPINE-CVE-2021-3407
Debian:12mupdf1.17.0+ds1-1.3DEBIAN-CVE-2021-3407
Debian:13mupdf1.17.0+ds1-1.3DEBIAN-CVE-2021-3407
Debian:14mupdf1.17.0+ds1-1.3DEBIAN-CVE-2021-3407

Affected products (as reported)

VendorProductVersions
n/a mupdf mupdf 1.18.0

Weakness: CWE-415 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References