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TI-2017-11950 Aliases CVE-2017-16231GHSA-5hhr-8qw3-63p2

In PCRE 8.41, after compiling, a pcretest load test PoC produces a crash overflow in the…

Priority MEDIUM 58CWE-119Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

In PCRE 8.41, after compiling, a pcretest load test PoC produces a crash overflow in the function match() in pcre_exec.c because of a self-recursive call. NOTE: third parties dispute the relevance of this report, noting that there are options that can be used to limit the amount of stack that is used

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00544 45th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:pcre:pcre:8.41:*:*:*:*:*:*:*8.41VulnerablePCRE
  • cpe:2.3:a:pcre:pcre:8.41:*:*:*:*:*:*:* Versions 8.41 Vulnerable ·PCRE

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 10 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat JBoss Core Services
  • Red Hat JBoss Enterprise Application Platform 5
  • Red Hat JBoss Enterprise Application Platform 6
  • Red Hat JBoss Enterprise Web Server 1
  • Red Hat JBoss Enterprise Web Server 2
  • Red Hat Software Collections

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-16231
  2. 2026-10-03 Alias added: GHSA-5hhr-8qw3-63p2

References

Exploit 2

Advisory 5

  • TI-2015-02839 Heap-based buffer overflow in PCRE 8.34 through 8.37 and PCRE2 10.10 allows remote… CVSS 3.1CRITICAL 9.8
  • TI-2016-02677 The compile_branch function in pcre_compile.c in PCRE 8.x before 8.39 and pcre2_compile.c… CVSS 3.0CRITICAL 9.8
  • TI-2016-01176 The pcre_compile2 function in pcre_compile.c in PCRE 8.38 mishandles the… CVSS 3.1CRITICAL 9.8
  • TI-2015-06911 The pcre_compile function in pcre_compile.c in PCRE before 8.38 mishandles certain [… CVSS 3.1CRITICAL 9.8
  • TI-2015-04255 Heap-based buffer overflow in the find_fixedlength function in pcre_compile.c in PCRE… CVSS 3.0CRITICAL 9.1
  • TI-2019-15056 libpcre in PCRE before 8.43 allows a subject buffer over-read in JIT when UTF is… CVSS 3.1HIGH 7.5
See all 32 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences