Resource exhaustion in Webkit
CVE-2016-9643
The regex code in Webkit 2.4.11 allows remote attackers to cause a denial of service (memory consumption) as demonstrated in a large number of ($ (open parenthesis and dollar) followed by {-2,16} and a large number of +) (plus close parenthesis).
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.031 (87.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.031 · newest: 0.031 · change: 0.000
Affected products
- Webkit — versions 2.4.11
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securitytracker.com/id/1038137 (vdb-entry)
- www.openwall.com/lists/oss-security/2016/11/26/5 (mailing-list, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/201706-15 (vendor-advisory)
- www.openwall.com/lists/oss-security/2016/11/26/2 (mailing-list, Mailing List, Third Party Advisory)
- www.securityfocus.com/bid/94559 (vdb-entry)
Frequently asked questions
- What is CVE-2016-9643?
- CVE-2016-9643 is a high-severity vulnerability in Webkit, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2017-03-07.
- How severe is CVE-2016-9643?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2016-9643 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.