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Vulnerability · Published Jun 8, 2020 · Assigned by mitre

CVE-2020-13696

Medium 4.4

In plain English

A medium-severity security flaw in the xawtv package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 29% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)4.4Medium
Exploit odds (30 days)0.4%top 70.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

An issue was discovered in LinuxTV xawtv before 3.107. The function dev_open() in v4l-conf.c does not perform sufficient checks to prevent an unprivileged caller of the program from opening unintended filesystem paths. This allows a local attacker with access to the v4l-conf setuid-root program to test for the existence of arbitrary files and to trigger an open on arbitrary files with mode O_RDWR. To achieve this, relative path components need to be added to the device path, as demonstrated by a v4l-conf -c /dev/../root/.bash_history command.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12xawtv3.107-1DEBIAN-CVE-2020-13696
Debian:13xawtv3.107-1DEBIAN-CVE-2020-13696
Debian:14xawtv3.107-1DEBIAN-CVE-2020-13696

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References