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TI-2008-00156 Aliases CVE-2008-0171GHSA-mc8j-3vrc-57vf

regex/v4/perl_matcher_non_recursive.hpp in the Boost regex library (aka Boost.Regex) in…

Priority LOW 28CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · Partial
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.

Summary

regex/v4/perl_matcher_non_recursive.hpp in the Boost regex library (aka Boost.Regex) in Boost 1.33 and 1.34 allows context-dependent attackers to cause a denial of service (failed assertion and crash) via an invalid regular expression.

Why it matters now

EPSS 0.02686 85th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Fixed Red Hat: 1 advisory

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

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

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:boost:boost:1.33:*:*:*:*:*:*:*1.33VulnerableBoost
cpe:2.3:a:boost:boost:1.34:*:*:*:*:*:*:*1.34VulnerableBoost
cpe:2.3:a:boost:boost_regex_library:*:*:*:*:*:*:*:*all versionsVulnerableBoost
  • cpe:2.3:a:boost:boost:1.33:*:*:*:*:*:*:* Versions 1.33 Vulnerable ·Boost
  • cpe:2.3:a:boost:boost:1.34:*:*:*:*:*:*:* Versions 1.34 Vulnerable ·Boost
  • cpe:2.3:a:boost:boost_regex_library:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Boost

Remediation

Red Hat 1 advisory

  • RHSA-2012:0305 Released 2012-02-21 · Red Hat rating Low
    boost security and bug fix update
    • Red Hat Enterprise Linux (v. 5 server) boost-1.33.1-15.el5, boost-1.33.1-15.el5.i386, boost-1.33.1-15.el5.ia64 +9
    • Red Hat Enterprise Linux Desktop (v. 5 client) boost-1.33.1-15.el5, boost-1.33.1-15.el5.i386, boost-doc-1.33.1-15.el5 +1
    • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) boost-1.33.1-15.el5, boost-devel-1.33.1-15.el5, boost-devel-1.33.1-15.el5.i386

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2012:0305
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2012:0305
Red Hat Enterprise Linux Desktop Workstation (v. 5 client)Fixed RHSA-2012:0305

Timeline

  1. 2026-10-02 Threatist record created from CVE-2008-0171
  2. 2026-10-03 Alias added: GHSA-mc8j-3vrc-57vf

References

Exploit 2

Advisory 5

Other 4

  • TI-2016-07969 inftrees.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified… CVSS 3.1HIGH 8.8
  • TI-2013-00186 boost::locale::utf::utf_traits in the Boost.Locale library in Boost 1.48 through 1.52… CVSS 2.0MEDIUM 5.0
  • TI-2008-00157 The get_repeat_type function in basic_regex_creator.hpp in the Boost regex library (aka… CVSS 2.0MEDIUM 5.0

Sources

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