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Fencer Vulns
high 7.5

CVE-2022-0137 json

A heap buffer overflow in image_set_mask function of HTMLDOC before 1.9.15 allows an attacker to write outside the buffer boundaries.

published 2022-11-14 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-15350

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 49%
public exploits
0
none known

Summary

A heap buffer overflow in image_set_mask function of HTMLDOC before 1.9.15 allows an attacker to write outside the buffer boundaries.

Patch / fix

  • michaelrsweet htmldoc 1.9.15
  • htmldoc Debian 14, Debian 13, Debian 12 1.9.15-1

debian advisories DEBIAN-CVE-2022-0137

  • htmldoc Ubuntu Pro 14.04 LTS 1.8.27-8ubuntu1+esm4
  • htmldoc Ubuntu Pro 16.04 LTS 1.8.27-8ubuntu1.1+esm3
  • htmldoc Ubuntu Pro 18.04 LTS 1.9.2-1ubuntu0.2+esm2
  • htmldoc Ubuntu Pro 20.04 LTS 1.9.7-1ubuntu0.3+esm2

ubuntu advisories UBUNTU-CVE-2022-0137

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-0137 updated cvss 7.5

htmldoc: heap buffer overflow in image_set_mask()

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
18 mo ago

Exploit prediction

0.60% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/michaelrsweet/htmldoc/issues/461 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

  • michaelrsweet htmldoc

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
  • CWE-787 Out-of-bounds Write

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.