UBUNTU-CVE-2026-111139

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Source

https://ubuntu.com/security/CVE-2026-111139

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111139.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-111139

Upstream

CVE-2026-111139

Published

2026-10-16T00:00:00Z

Modified

2026-10-17T12:58:04Z

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

NetSurf libnsbmp through 0.1.7 contains an out-of-bounds read vulnerability in bmp_decode_mask() that allows attackers to read one byte past the image buffer by supplying crafted ICO files. Attackers can provide an ICO whose inner bitmap width is not a multiple of 8, causing a heap over-read that can crash applications calling bmp_decode().

References

Affected packages

Ubuntu:16.04:LTS / libnsbmp

Package

Name: libnsbmp
Purl: pkg:deb/ubuntu/libnsbmp?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.0.1-1.1

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "libnsbmp0",
            "binary_version":  "0.0.1-1.1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111139.json"