Home/CVE/libpcre1 in PCRE 8.40 and libpcre2 in PCRE2 10.23 allow remote attackers to cause a denial of service (segmentation viol
CVE

CVE-2017-7186

libpcre1 in PCRE 8.40 and libpcre2 in PCRE2 10.23 allow remote attackers to cause a denial of service (segmentation viol

libpcre1 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.

HIGH · CVSS 7.5 EPSS 0.07102
Schedule remediation
  • EPSS percentile: top 8% of all CVEs by exploitation likelihood
  • CVSS base score ≥ 7.0
Sigma rules2 YARA rules0
⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
▤

Affected Products & Versions

2
pcreall versions
pcre pcre2all versions
◈

Sigma Hunt Rules

2
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighPCRE.NET Package Temp Files
producthighPCRE.NET Package Image Load
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD20 Mar 2017 · 12:59 AM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

5
suse-csafopenSUSE-SU-2024:11153-1
suse-csafopenSUSE-SU-2024:11154-1
usnUSN-5665-1
suse-csafSUSE-SU-2021:3652-1
rhsaRHSA-2018:2486Moderate
🔗

References & Sources

9
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.securityfocus.com/bid/97030
https://blogs.gentoo.org/ago/2017/03/14/libpcre-invalid-memory-read-in-match-pcre_exec-c/PatchThird Party Advisory
https://bugs.exim.org/show_bug.cgi?id=2052Third Party Advisory
https://security.gentoo.org/glsa/201710-09
https://security.gentoo.org/glsa/201710-25
https://vcs.pcre.org/pcre/code/trunk/pcre_internal.h?r1=1649&r2=1688&sortby=datePatch
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