Resource exhaustion in Apple macOS
CVE-2022-24836
Nokogiri is an open source XML and HTML library for Ruby. Nokogiri `< v1.13.4` contains an inefficient regular expression that is susceptible to excessive backtracking when attempting to detect encoding in HTML documents. Users are advised to upgrade to Nokogiri `>= 1.13.4`. There are no known workarounds for this issue.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 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.
EPSS exploit prediction
EPSS: 0.035 (89.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.035 · newest: 0.035 · change: 0.000
Affected products
- Apple macOS
- Nokogiri
- Sparklemotion Nokogiri — versions < 1.13.4
- Debian Linux — versions 9.0, 10.0
- Fedoraproject Fedora — versions 34, 35, 36
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/sparklemotion/nokogiri/security/advisories/GHSA-crjr-9rc5-ghw8 (Third Party Advisory)
- github.com/sparklemotion/nokogiri/commit/e444525ef1634b675cd1cf52d39f4320ef0aec… (Patch, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.debian.org/debian-lts-announce/2022/05/msg00013.html (mailing-list, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/202208-29 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2022/10/msg00018.html (mailing-list, Mailing List, Third Party Advisory)
- support.apple.com/kb/HT213532 (Third Party Advisory)
- seclists.org/fulldisclosure/2022/Dec/23 (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-24836?
- CVE-2022-24836 is a high-severity vulnerability in Apple macOS, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2022-04-11.
- How severe is CVE-2022-24836?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2022-24836 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.