CVE-2015-8384
PCRE before 8.38 mishandles the /(?J)(?'d'(?'d'\g{d}))/ pattern and related patterns with certain recursive back references, which allows remote attackers to cause a denial of service (buffer overflow) or possibly have unspecified other impact via a…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.40%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
PCRE before 8.38 mishandles the /(?J)(?'d'(?'d'\g{d}))/ pattern and related patterns with certain recursive back references, which allows remote attackers to cause a denial of service (buffer overflow) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror, a related issue to CVE-2015-8392 and CVE-2015-8395.
- CVSS 2.0
- 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
- EPSS
- 3.40% probability · 88th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- pcre/perl compatible regular expression library
- Source
- cve@mitre.org
References
- http://rhn.redhat.com/errata/RHSA-2016-2750.html
- http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markupRelease Notes
- http://www.openwall.com/lists/oss-security/2015/11/29/1Mailing List, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2016:1132
- https://bto.bluecoat.com/security-advisory/sa128Third Party Advisory
- https://security.gentoo.org/glsa/201607-02
- http://rhn.redhat.com/errata/RHSA-2016-2750.html
- http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markupRelease Notes
- http://www.openwall.com/lists/oss-security/2015/11/29/1Mailing List, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2016:1132
- https://bto.bluecoat.com/security-advisory/sa128Third Party Advisory
- https://security.gentoo.org/glsa/201607-02
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.