CVE-2022-50998
Publication date 31 August 2026
Last updated 31 August 2026
Ubuntu priority
Description
Nokogiri before 1.13.9 (CRuby implementation using packaged libraries) bundles libxml2 v2.9.14, which is affected by CVE-2022-40304 (data corruption / double-free from an entity reference cycle when entity content is allocated from a dict) and CVE-2022-40303 (integer overflows when parsing with XML_PARSE_HUGE). Nokogiri 1.13.9 upgrades the packaged libxml2 to v2.10.3 to address these issues. Processing crafted XML input may lead to denial of service or memory corruption. (The advisory also references CVE-2022-2309, a NULL pointer dereference via iterwalk/canonicalize, which maintainers determined does not affect Nokogiri users.)
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| ruby-nokogiri | 26.04 LTS resolute |
Needs evaluation
|
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy |
Needs evaluation
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
|
| 16.04 LTS xenial |
Needs evaluation
|
|
| 14.04 LTS trusty |
Needs evaluation
|
Severity score breakdown
CVSS version:
Base score
8.7 · High
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Base score
7.5 · High
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
Other references
- https://www.cve.org/CVERecord?id=CVE-2022-50998
- https://github.com/GNOME/libxml2/commit/644a89e080bced793295f61f18aac8cfad6bece2
- https://github.com/GNOME/libxml2/commit/c846986356fc149915a74972bf198abc266bc2c0
- https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-2qc6-mcvw-92cw
- https://www.vulncheck.com/advisories/nokogiri-before-multiple-vulnerabilities-via-libxml2-2