CVE-2015-8394: Integer Overflow
First published: Wed Dec 02 2015(Updated: )
PCRE before 8.38 mishandles the (?(<digits>) and (?(R<digits>) conditions, which allows remote attackers to cause a denial of service (integer overflow) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| PCRE (Perl Compatible Regular Expressions) | <=8.37 | |
| PHP | >=5.5.0<5.5.32 | |
| PHP | >=5.6.0<5.6.18 | |
| PHP | >=7.0.0<7.0.3 | |
| PHP | <7.0.3 | 7.0.3 |
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Reference Links
- http://lists.fedoraproject.org/pipermail/package-announce/2016-January/174931.html
- http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markup
- http://www.openwall.com/lists/oss-security/2015/11/29/1
- http://www.securityfocus.com/bid/82990
- https://bto.bluecoat.com/security-advisory/sa128
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731
- https://security.gentoo.org/glsa/201607-02
- https://security.netapp.com/advisory/ntap-20230216-0002/
- https://www.php.net/ChangeLog-7.php#7.0.3 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2015-8394?
CVE-2015-8394 has a severity level that may allow remote attackers to cause denial of service through integer overflow.
How do I fix CVE-2015-8394?
To fix CVE-2015-8394, update to PCRE version 8.38 or later and ensure PHP is patched to versions above 5.5.32, 5.6.18, or 7.0.3.
What types of software are affected by CVE-2015-8394?
CVE-2015-8394 affects multiple versions of PCRE and PHP prior to specific patched versions.
Can CVE-2015-8394 be exploited remotely?
Yes, CVE-2015-8394 can be exploited by remote attackers using crafted regular expressions.
What impact can CVE-2015-8394 have on systems?
The impact of CVE-2015-8394 can include denial of service and potentially other unspecified effects.
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- alias/CVE-2015-8386
- alias/CVE-2015-8387
- alias/CVE-2015-8389
- alias/CVE-2015-8390
- alias/CVE-2015-8391
- alias/CVE-2015-8393
- alias/CVE-2015-8394
- agent/software-canonical-lookup
- alias/CVE-2015-8383
- vendor/pcre
- canonical/pcre (perl compatible regular expressions)
- version/pcre (perl compatible regular expressions)/8.37
- vendor/php
- canonical/php
- version/php/5.5.0
- version/php/5.6.0
- version/php/7.0.0