01 Record

CVE-2015-8388

PCRE before 8.38 mishandles the /(?=di(?<=(?1))|(?=(.))))/ pattern and related patterns with an unmatched closing parenthesis, which allows remote attackers to cause a denial of service (buffer

UnratedPUBLISHEDCNA: mitre

CNA base scoreUnratedNo CNA CVSS vector

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02 Description

PCRE before 8.38 mishandles the /(?=di(?<=(?1))|(?=(.))))/ pattern and related patterns with an unmatched closing parenthesis, which allows remote attackers to cause a denial of service (buffer

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 6.58% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 93.7% of scored records. A rank, not a probability.
NVD base score: The NVD has published no score for this record
NVD CVSS vector: No NVD score to derive
NVD analysis status: Modified. NVD last modified this record on 2026-06-17.
Red Hat severity: Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2015-12-02 01:00Z10 YR AGO

Last updated

2024-08-06 08:13Z2 YR AGO

Reserved

2015-12-01

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
CWE-185Incorrect Regular ExpressionClass
CWE-122Heap-based Buffer OverflowVariant

Data version

5.1

Document digest

8d0ef7660bd870f32ba0f9e086d7bb73eaac8df34263d87d8f0b0915456b5762

05 Affected products

VendorProductVersionsPlatforms

oraclelinuxNot specified—

pcreperl_compatible_regular_expression_libraryNot specified—

redhatdirectory_serverNot specified—

redhatenterprise_linuxNot specified—

redhatjboss_enterprise_web_serverNot specified—

redhatrhel_software_collectionsNot specified—

06 References

www.openwall.com[oss-security] 20151128 Re: Heap Overflow in PCREhttp://www.openwall.com/lists/oss-security/2015/11/29/1mailing-listx_refsource_MLIST
access.redhat.comRHSA-2016:1132https://access.redhat.com/errata/RHSA-2016:1132vendor-advisoryx_refsource_REDHAT
www.oracle.comhttp://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.htmlx_refsource_CONFIRM
www-01.ibm.comhttp://www-01.ibm.com/support/docview.wss?uid=isg3T1023886x_refsource_CONFIRM
rhn.redhat.comRHSA-2016:1025http://rhn.redhat.com/errata/RHSA-2016-1025.htmlvendor-advisoryx_refsource_REDHAT
rhn.redhat.comRHSA-2016:2750http://rhn.redhat.com/errata/RHSA-2016-2750.htmlvendor-advisoryx_refsource_REDHAT
www.securityfocus.com85576http://www.securityfocus.com/bid/85576vdb-entryx_refsource_BID
bto.bluecoat.comhttps://bto.bluecoat.com/security-advisory/sa128x_refsource_CONFIRM
vcs.pcre.orghttp://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markupx_refsource_CONFIRM
security.gentoo.orgGLSA-201607-02https://security.gentoo.org/glsa/201607-02vendor-advisoryx_refsource_GENTOO

07 Fixed in

Debian 12

pcre3
Fixed in 2:8.35-7

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 14.04 LTS

pcre3
Fixed in 1:8.31-2ubuntu2.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.