CVE-2017-7186

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Summary

CVECVE-2017-7186
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-03-20 00:59:00 UTC
Updated2025-04-20 01:37:25 UTC
Descriptionlibpcre1 in PCRE 8.40 and libpcre2 in PCRE2 10.23 allow remote attackers to cause a denial of service (segmentation violation for read access, and application crash) by triggering an invalid Unicode property lookup.

Risk And Classification

Primary CVSS: v3.0 7.5 HIGH from [email protected]

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-119 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary7.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
2.0[email protected]Primary5AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:L/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Pcre Pcre 8.40 All All All
Application Pcre Pcre2 10.23 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Bug 2052 – invalid memory read in match (pcre_exec.c) af854a3a-2127-422b-91ae-364da2661108 bugs.exim.org Third Party Advisory
[pcre] Diff of /code/trunk/pcre_internal.h af854a3a-2127-422b-91ae-364da2661108 vcs.pcre.org Patch
[pcre2] Diff of /code/trunk/src/pcre2_internal.h af854a3a-2127-422b-91ae-364da2661108 vcs.pcre.org Patch
PCRE2: Multiple vulnerabilities (GLSA 201710-09) — Gentoo Security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org
[pcre] Diff of /code/trunk/pcre_ucd.c af854a3a-2127-422b-91ae-364da2661108 vcs.pcre.org Patch
[pcre2] Diff of /code/trunk/src/pcre2_ucd.c af854a3a-2127-422b-91ae-364da2661108 vcs.pcre.org Patch
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
libpcre: invalid memory read in match (pcre_exec.c) | agostino's blog af854a3a-2127-422b-91ae-364da2661108 blogs.gentoo.org Patch, Third Party Advisory
PCRE: Multiple vulnerabilities (GLSA 201710-25) — Gentoo Security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org
PCRE CVE-2017-7186 Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 500516 Alpine Linux Security Update for pcre
  • 504275 Alpine Linux Security Update for pcre
  • 710531 Gentoo Linux PCRE2 Multiple Vulnerabilities (GLSA 201710-09)
  • 710566 Gentoo Linux PCRE Multiple Vulnerabilities (GLSA 201710-25)
  • 751361 SUSE Enterprise Linux Security Update for pcre (SUSE-SU-2021:3652-1)
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