Description
Perl-Compatible Regular Expression (PCRE) library before 7.0 does not properly calculate sizes for unspecified "multiple forms of character class", which triggers a buffer overflow that allows context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | glib2.0 | 2.14.3-1 | — |
| Debian 13 | glib2.0 | 2.14.3-1 | — |
| Debian 12 | glib2.0 | 2.14.3-1 | — |
| Debian 12 | pcre3 | 7.3-1 | — |
| Debian 5.0 | pcre3 | 6.7+7.4-2+lenny1 | DTSA-77-1 |
| Debian 4.0 | kazehakase | 0.4.2-1etch1 | DSA-1570-1 |
| Debian 4.0 | pcre3 | 6.7+7.4-2 | DSA-1399-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 3.1 | pcre3 | 4.5+7.4-1 | DSA-1399-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | pcre +1 | 6.6-2.el5_0.1 | RHSA-2007:0967 |
| RHEL 4 | pcre +1 | 4.5-4.el4_5.1 | RHSA-2007:0968 |
| RHEL 3 | pcre +1 | 3.9-10.4 | RHSA-2007:1063 |
| RHEL 2 | pcre +1 | 3.4-2.4 | RHSA-2007:1065 |
| RHEL 2 | php +7 | 4.1.2-2.20 | RHSA-2008:0546 |
Advisories 8
- RHSA-2007:0967 Red Hat Security Advisory: pcre security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2008:0546 Red Hat Security Advisory: php security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2007:1063 Red Hat Security Advisory: pcre security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2007:1065 Red Hat Security Advisory: pcre security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2007:0968 Red Hat Security Advisory: pcre security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-1570-1 kazehakase - execution of arbitrary code Debian Security (DSA / DLA) · Mar 9, 2026
- DTSA-77-1 pcre3 - arbitrary code execution Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-1399-1 pcre3 - arbitrary code execution Debian Security (DSA / DLA) · Mar 9, 2026
References
- 30219 third-party-advisory
- MDKSA-2007:212 vendor-advisory
- 27965 third-party-advisory
- 27776 third-party-advisory
- USN-547-1 vendor-advisory
- GLSA-200711-30 vendor-advisory
- ADV-2007-4238 vdb-entry
- 20071106 rPSA-2007-0231-1 pcre mailing-list
- RHSA-2007:0968 vendor-advisory
- TA07-352A third-party-advisory
- 27538 third-party-advisory
- 20071112 FLEA-2007-0064-1 pcre mailing-list
- 28136 third-party-advisory
- RHSA-2008:0546 vendor-advisory
- 27862 third-party-advisory
- oval:org.mitre.oval:def:10562 vdb-entry signature
- DSA-1570 vendor-advisory
- SUSE-SA:2008:004 vendor-advisory
- https://issues.rpath.com/browse/RPL-1738
- 28658 third-party-advisory
- 27773 third-party-advisory
- 27697 third-party-advisory
- pcre-character-class-dos(38273) vdb-entry
- 28406 third-party-advisory
- 27554 third-party-advisory
- ADV-2008-0924 vdb-entry
- 20080416 VMSA-2008-0007 Moderate Updated Service Console packages pcre, net-snmp, and OpenPegasus mailing-list
- RHSA-2007:1065 vendor-advisory
- 31124 third-party-advisory
- SUSE-SR:2007:025 vendor-advisory
- 27547 third-party-advisory
- 27543 third-party-advisory
- http://support.avaya.com/elmodocs2/security/ASA-2007-488.htm
- 29785 third-party-advisory
- [gtk-devel-list] 20071107 GLib 2.14.3 mailing-list
- 29420 third-party-advisory
- APPLE-SA-2007-12-17 vendor-advisory
- GLSA-200805-11 vendor-advisory
- APPLE-SA-2008-03-18 vendor-advisory
- MDKSA-2007:211 vendor-advisory
- ADV-2008-1234 vdb-entry
- MDKSA-2007:213 vendor-advisory
- http://docs.info.apple.com/article.html?artnum=307179
- 27741 third-party-advisory
- ADV-2007-3790 vdb-entry
- 1018895 vdb-entry
- ADV-2007-3725 vdb-entry
- SUSE-SA:2007:062 vendor-advisory
- http://docs.info.apple.com/article.html?artnum=307562
- 30155 third-party-advisory
- RHSA-2007:1063 vendor-advisory
- RHSA-2007:0967 vendor-advisory
- 28720 third-party-advisory
- GLSA-200801-02 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=315881
- [Security-announce] 20080415 VMSA-2008-0007 Moderate Updated Service Console packages pcre, net-snmp, and OpenPegasus mailing-list
- 27598 third-party-advisory
- http://bugs.gentoo.org/show_bug.cgi?id=198976
- GLSA-200801-19 vendor-advisory
- GLSA-200801-18 vendor-advisory