Vulnerability in PHP
CVE-2011-0420
The grapheme_extract function in the Internationalization extension (Intl) for ICU for PHP 5.3.5 allows context-dependent attackers to cause a denial of service (crash) via an invalid size argument, which triggers a NULL pointer dereference.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.144 (96.5th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 96.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.144 · newest: 0.144 · change: 0.000
Affected products
- PHP — versions 5.3.5
Public proof-of-concept exploits
References
- www.securityfocus.com/archive/1/516504/100/0/threaded (mailing-list)
- www.debian.org/security/2011/dsa-2266 (vendor-advisory)
- www.kb.cert.org/vuls/id/210829 (US Government Resource, third-party-advisory)
- www.securityfocus.com/bid/46429 (Exploit, vdb-entry)
- securityreason.com/securityalert/8087 (third-party-advisory)
- www.exploit-db.com/exploits/16182 (exploit)
- lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html (vendor-advisory)
- exchange.xforce.ibmcloud.com/vulnerabilities/65437 (vdb-entry)
- www.securityfocus.com/archive/1/516518/100/0/threaded (mailing-list)
- securityreason.com/achievement_securityalert/94 (Exploit, third-party-advisory)
Frequently asked questions
- What is CVE-2011-0420?
- CVE-2011-0420 is a vulnerability in PHP. Published 2011-02-19.
- Is CVE-2011-0420 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.