UBUNTU-CVE-2026-120458

See a problem?
Please try reporting it to the source first.

Source

https://ubuntu.com/security/CVE-2026-120458

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-120458.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-120458

Upstream

CVE-2026-120458

Published

2026-11-03T00:00:00Z

Modified

2026-11-04T03:30:38Z

Severity

5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
6.8 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

Kvazaar through 2.3.2 contains an infinite loop vulnerability in read_header() in src/encmain.c that allows attackers to hang the command-line encoder by supplying a truncated Y4M header. Attackers can provide a crafted .y4m file lacking a terminating newline, causing unchecked EOF reads that hang the process indefinitely while consuming a full CPU core.

References

Affected packages

Ubuntu:26.10 / kvazaar

Package

Name: kvazaar
Purl: pkg:deb/ubuntu/kvazaar?arch=source&distro=stonking

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.3.2-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "kvazaar",
            "binary_version": "2.3.2-1"
        },
        {
            "binary_name": "libkvazaar7",
            "binary_version": "2.3.2-1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-120458.json"

Ubuntu:26.04:LTS / kvazaar