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TI-2015-02053 Aliases CVE-2015-2328GHSA-4h7h-5fv8-m6hg

PCRE before 8.36 mishandles the /((?(R)a|(?1)))+/ pattern and related patterns with…

Priority MEDIUM 41CWE-19Published · 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
Partial · Partial · Partial
Fix status
Partial Red Hat: 15 fixed, 3 without a fix

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

Summary

PCRE before 8.36 mishandles the /((?(R)a|(?1)))+/ pattern and related patterns with certain recursion, which allows remote attackers to cause a denial of service (segmentation fault) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.

Why it matters now

EPSS 0.05244 92nd percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Partial Red Hat: 2 advisoriesRed Hat: 15 fixed, 3 without a fix

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 · 2

CPEVersionsRoleVendor
cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*7VulnerableOracle
cpe:2.3:a:pcre:pcre:*:*:*:*:*:*:*:*up to 8.35VulnerablePCRE
  • cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:* Versions 7 Vulnerable ·Oracle
  • cpe:2.3:a:pcre:pcre:*:*:*:*:*:*:*:* Versions up to 8.35 Vulnerable ·PCRE

Remediation

Red Hat 2 advisories

  • RHSA-2016:2750 Released 2016-11-15 · Red Hat rating Moderate
    rh-php56 security, bug fix, and enhancement update
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) rh-php56-2.3-1.el6, rh-php56-php-5.6.25-1.el6, rh-php56-php-bcmath-5.6.25-1.el6 +30
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-php56-2.3-1.el7, rh-php56-php-5.6.25-1.el7, rh-php56-php-bcmath-5.6.25-1.el7 +28
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7) rh-php56-2.3-1.el6, rh-php56-php-5.6.25-1.el6, rh-php56-php-bcmath-5.6.25-1.el6 +30
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.2) rh-php56-2.3-1.el7, rh-php56-php-5.6.25-1.el7, rh-php56-php-bcmath-5.6.25-1.el7 +28
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.3) rh-php56-2.3-1.el7, rh-php56-php-5.6.25-1.el7, rh-php56-php-bcmath-5.6.25-1.el7 +28
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) rh-php56-2.3-1.el6, rh-php56-php-5.6.25-1.el6, rh-php56-php-bcmath-5.6.25-1.el6 +30
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-php56-2.3-1.el7, rh-php56-php-5.6.25-1.el7, rh-php56-php-bcmath-5.6.25-1.el7 +28
  • RHSA-2016:1025 Released 2016-05-11 · Red Hat rating Important
    pcre security update
    • Red Hat Enterprise Linux Client (v. 7) pcre-8.32-15.el7_2.1
    • Red Hat Enterprise Linux Client Optional (v. 7) pcre-devel-8.32-15.el7_2.1, pcre-static-8.32-15.el7_2.1, pcre-tools-8.32-15.el7_2.1
    • Red Hat Enterprise Linux ComputeNode (v. 7) pcre-8.32-15.el7_2.1
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) pcre-devel-8.32-15.el7_2.1, pcre-static-8.32-15.el7_2.1, pcre-tools-8.32-15.el7_2.1
    • Red Hat Enterprise Linux Server (v. 7) pcre-8.32-15.el7_2.1, pcre-8.32-15.el7_2.1.ppc, pcre-devel-8.32-15.el7_2.1 +1
    • Red Hat Enterprise Linux Server Optional (v. 7) pcre-static-8.32-15.el7_2.1, pcre-static-8.32-15.el7_2.1.ppc, pcre-tools-8.32-15.el7_2.1
    • Red Hat Enterprise Linux Workstation (v. 7) pcre-8.32-15.el7_2.1, pcre-devel-8.32-15.el7_2.1
    • Red Hat Enterprise Linux Workstation Optional (v. 7) pcre-static-8.32-15.el7_2.1, pcre-tools-8.32-15.el7_2.1

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 7AffectedNo fix planned: Will not fix
Red Hat JBoss Enterprise Web Server 3AffectedNo fix planned: Will not fix
Red Hat Software CollectionsAffectedNo fix planned: Will not fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2016:1025
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2016:1025
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2016:1025
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2016:1025
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2016:1025
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2016:1025
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2016:1025
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2016:1025
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7)Fixed RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.2)Fixed RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.3)Fixed RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2016:2750
Not affected: 7 products
  • Red Hat Directory Server 8
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • 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-2015-2328
  2. 2026-10-03 Alias added: GHSA-4h7h-5fv8-m6hg

References

Exploit 2

Advisory 6

Other 1

Sources

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