Description
Multiple integer overflows in the Apache Portable Runtime (APR) library and the Apache Portable Utility library (aka APR-util) 0.9.x and 1.3.x allow remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via vectors that trigger crafted calls to the (1) allocator_alloc or (2) apr_palloc function in memory/unix/apr_pools.c in APR; or crafted calls to the (3) apr_rmm_malloc, (4) apr_rmm_calloc, or (5) apr_rmm_realloc function in misc/apr_rmm.c in APR-util; leading to buffer overflows. NOTE: some of these details are obtained from third party information.
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 | apr | 1.3.8-1 | — |
| Debian 14 | apr-util | 1.3.9+dfsg-1 | — |
| Debian 13 | apr | 1.3.8-1 | — |
| Debian 13 | apr-util | 1.3.9+dfsg-1 | — |
| Debian 12 | apr | 1.3.8-1 | — |
| Debian 12 | apr-util | 1.3.9+dfsg-1 | — |
| Debian 5.0 | apr | 1.2.12-5+lenny1 | DSA-1854-1 |
| Debian 5.0 | apr-util | 1.2.12+dfsg-8+lenny4 | DSA-1854-1 |
| Debian 4.0 | apr | 1.2.7-9 | DSA-1854-1 |
| Debian 4.0 | apr-util | 1.2.7+dfsg-2+etch3 | DSA-1854-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | apr +2 | 1.2.7-11.el5_3.1 | RHSA-2009:1204 |
| RHEL 5 | apr-util +2 | 1.2.7-7.el5_3.2 | RHSA-2009:1204 |
| RHEL 4 | apr +1 | 0.9.4-24.9.el4_8.2 | RHSA-2009:1204 |
| RHEL 4 | apr-util +1 | 0.9.4-22.el4_8.2 | RHSA-2009:1204 |
| RHEL 3 | httpd +1 | 2.0.46-75.ent | RHSA-2009:1205 |
| RHEL 3 | mod_ssl | 1:2.0.46-75.ent | RHSA-2009:1205 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat JBoss Web Server 1 | httpd22 +5 | 2.2.10-24.1.ep5.el4 | RHSA-2009:1462 |
| Red Hat JBoss Web Server 1 | mod_ssl22 | 1:2.2.10-24.1.ep5.el4 | RHSA-2009:1462 |
| Red Hat Certificate System 7 | ant | 1.6.5-1jpp_1rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | avalon-logkit | 1.2-2jpp_4rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | axis | 1.2.1-1jpp_3rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | classpathx-jaf | 1.0-2jpp_6rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | classpathx-mail | 1.1.1-2jpp_8rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | geronimo-specs +10 | 1.0-0.M4.1jpp_10rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | jakarta-commons-modeler | 2.0-3jpp_2rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | log4j | 1.2.12-1jpp_1rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | mx4j | 1:3.0.1-1jpp_4rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | pcsc-lite +2 | 1.3.3-3.el4 | RHSA-2010:0602 |
| Red Hat Certificate System 7 | rhpki-ca | 7.3.0-20.el4 | RHSA-2010:0602 |
| Red Hat Certificate System 7 | rhpki-java-tools | 7.3.0-10.el4 | RHSA-2010:0602 |
| Red Hat Certificate System 7 | rhpki-kra | 7.3.0-14.el4 | RHSA-2010:0602 |
| Red Hat Certificate System 7 | rhpki-manage | 7.3.0-19.el4 | RHSA-2010:0602 |
| Red Hat Certificate System 7 | rhpki-native-tools | 7.3.0-6.el4 | RHSA-2010:0602 |
| Red Hat Certificate System 7 | rhpki-tks +1 | 7.3.0-13.el4 | RHSA-2010:0602 |
| Red Hat Certificate System 7 | tomcat5 +5 | 5.5.23-0jpp_4rh.16 | RHSA-2010:0602 |
| Red Hat Certificate System 7 | xerces-j2 | 2.7.1-1jpp_1rh | RHSA-2010:0602 |
| Red Hat Certificate System 7 | xml-commons +1 | 1.3.02-2jpp_1rh | RHSA-2010:0602 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | apache2 | 2.4.23-4.1 | openSUSE-SU-2024:10268-1 |
| openSUSE Tumbleweed | apr | 1.5.2-3.4 | openSUSE-SU-2024:11596-1, openSUSE-SU-2024:10063-1 |
| openSUSE Tumbleweed | apr-util | 1.5.4-4.4 | openSUSE-SU-2024:11586-1, openSUSE-SU-2024:10568-1 |
Advisories 10
- RHSA-2010:0602 Red Hat Security Advisory: Red Hat Certificate System 7.3 security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2009:1204 Red Hat Security Advisory: apr and apr-util security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2009:1205 Red Hat Security Advisory: httpd security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-1854-1 apr apr-util - arbitrary code execution Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10063-1 libapr1-1.5.2-3.4 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11596-1 apr-devel-1.7.0-3.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10568-1 libapr-util1-1.5.4-4.4 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10268-1 apache2-2.4.23-4.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11586-1 apr-util-devel-1.6.1-8.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- RHSA-2009:1462 Red Hat Security Advisory: httpd22 security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
References
- SUSE-SA:2009:050 vendor-advisory
- 36233 third-party-advisory
- ADV-2010-1107 vdb-entry
- http://svn.apache.org/viewvc/apr/apr-util/branches/0.9.x/CHANGES?revision=800736&view=markup
- 37152 third-party-advisory
- SUSE-SR:2010:011 vendor-advisory
- 36140 third-party-advisory
- 56765 vdb-entry
- PK99482 vendor-advisory
- 56766 vdb-entry
- http://svn.apache.org/viewvc/apr/apr-util/branches/0.9.x/misc/apr_rmm.c?r1=230441&r2=800736
- 35949 vdb-entry
- PK93225 vendor-advisory
- 36166 third-party-advisory
- http://svn.apache.org/viewvc/apr/apr-util/branches/1.3.x/CHANGES?revision=800735&view=markup
- oval:org.mitre.oval:def:8394 vdb-entry signature
- 36138 third-party-advisory
- http://svn.apache.org/viewvc/apr/apr/branches/0.9.x/memory/unix/apr_pools.c?r1=585356&r2=800733
- USN-813-2 vendor-advisory
- 37221 third-party-advisory
- http://svn.apache.org/viewvc/apr/apr/branches/0.9.x/CHANGES?revision=800733&view=markup
- ADV-2009-3184 vdb-entry
- oval:org.mitre.oval:def:9958 vdb-entry signature
- http://svn.apache.org/viewvc/apr/apr/branches/1.3.x/CHANGES?revision=800732&view=markup
- http://svn.apache.org/viewvc/apr/apr-util/branches/1.3.x/misc/apr_rmm.c?r1=647687&r2=800735
- APPLE-SA-2009-11-09-1 vendor-advisory
- MDVSA-2009:195 vendor-advisory
- FEDORA-2009-8336 vendor-advisory
- http://svn.apache.org/viewvc/apr/apr/branches/1.3.x/memory/unix/apr_pools.c?r1=678140&r2=800732
- http://support.apple.com/kb/HT3937
- FEDORA-2009-8360 vendor-advisory
- [httpd-cvs] 20190815 svn commit: r1048742 [2/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilit mailing-list
- [httpd-cvs] 20190815 svn commit: r1048743 [2/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilit mailing-list
- [httpd-cvs] 20190815 svn commit: r1048743 [3/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilit mailing-list
- [httpd-cvs] 20190815 svn commit: r1048742 [3/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilit mailing-list
- [httpd-cvs] 20200401 svn commit: r1058586 [3/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilit mailing-list
- [httpd-cvs] 20200401 svn commit: r1058586 [2/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilit mailing-list
- [httpd-cvs] 20200401 svn commit: r1058587 [2/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilit mailing-list
- [httpd-cvs] 20200401 svn commit: r1058587 [3/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilit mailing-list
- [httpd-cvs] 20210330 svn commit: r1073139 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/json/ mailing-list
- [httpd-cvs] 20210330 svn commit: r1888194 [6/13] - /httpd/site/trunk/content/security/json/ mailing-list
- [httpd-cvs] 20210330 svn commit: r1073140 [3/4] - in /websites/staging/httpd/trunk/content: ./ security/cvejsontohtml.py security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.ht mailing-list
- [httpd-cvs] 20210330 svn commit: r1073139 [6/13] - in /websites/staging/httpd/trunk/content: ./ security/json/ mailing-list
- [httpd-cvs] 20210330 svn commit: r1073140 [2/4] - in /websites/staging/httpd/trunk/content: ./ security/cvejsontohtml.py security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.ht mailing-list
- [httpd-cvs] 20210330 svn commit: r1073143 [2/3] - in /websites/staging/httpd/trunk/content: ./ security/ mailing-list
- [httpd-cvs] 20210330 svn commit: r1073149 [7/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/ mailing-list
- [httpd-cvs] 20210330 svn commit: r1073146 [2/3] - in /websites/staging/httpd/trunk/content: ./ security/cvejsontohtml.py security/vulnerabilities-httpd.xml security/vulnerabilities_22.html security/vulnerabilities_24.html mailing-list
- [httpd-cvs] 20210330 svn commit: r1073149 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/ mailing-list
- [httpd-cvs] 20210603 svn commit: r1075360 [1/3] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2021-31618.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabiliti mailing-list
- [httpd-cvs] 20210606 svn commit: r1075467 [1/2] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2021-31618.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabiliti mailing-list
- [httpd-cvs] 20210606 svn commit: r1075470 [3/4] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2020-13938.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabiliti mailing-list