CVE-2015-8391
CRITICAL
9.8
CVSS Score
Published: December 2, 2015 at 12:00 AM UTC
Updated: June 17, 2026 at 12:34 AM UTC
10 products affected across 5 vendorsFedoraEnterprise Linux DesktopEnterprise Linux Server
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Severity
CRITICAL9.8
Exploit prediction
EPSS 6%
Description
The pcre_compile function in pcre_compile.c in PCRE before 8.38 mishandles certain [: nesting, which allows remote attackers to cause a denial of service (CPU consumption) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
95%
v < 8.38
Affected range stops below 8.38, so it looks safe — our inference, not a vendor statement
5.5.0 ≤ v < 5.5.325.6.0 ≤ v < 5.6.187.0.0 ≤ v < 7.0.3
Affected range stops below 5.5.32, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.6.18, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.0.3, so it looks safe — our inference, not a vendor statement
95%
Enterprise Linux Server· Red Hatrubygems
95%95%
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (13)
Vendor AdvisoryMailing ListThird Party Advisory
Source: [email protected]
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/174931.htmlVendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
http://rhn.redhat.com/errata/RHSA-2016-1025.htmlVendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
http://rhn.redhat.com/errata/RHSA-2016-2750.htmlx_refsource_CONFIRMBroken Link
Source: [email protected]
http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markupx_refsource_CONFIRMThird Party Advisory
Source: [email protected]
http://www-01.ibm.com/support/docview.wss?uid=isg3T1023886Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2015/11/29/1x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.htmlCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-119
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