CVE-2009-1956
Off-by-one error in the apr_brigade_vprintf function in Apache APR-util before 1.3.5 on big...
6.4 MediumFix available
Off-by-one error in the apr_brigade_vprintf function in Apache APR-util before 1.3.5 on big-endian platforms allows remote attackers to obtain sensitive information or cause a denial of service (application crash) via crafted input.
Exploit likelihood
12.0%Up 4.7 points since Feb 4, 2022
What each source reports
NVD Score used
Off-by-one error in the apr_brigade_vprintf function in Apache APR-util before 1.3.5 on big-endian platforms allows remote attackers to obtain sensitive information or cause a denial of service (application crash) via crafted input.
- Record
CVE-2009-1956- CVSS 2.0
- 6.4 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:P - Weakness
- CWE-189
- Updated
- 2026-11-02
CVE List No score
Off-by-one error in the apr_brigade_vprintf function in Apache APR-util before 1.3.5 on big-endian platforms allows remote attackers to obtain sensitive information or cause a denial of service (application crash) via crafted input.
- Record
CVE-2009-1956- Updated
- 2026-11-02
EUVDEUVD-2009-1951 No score
Off-by-one error in the apr_brigade_vprintf function in Apache APR-util before 1.3.5 on big-endian platforms allows remote attackers to obtain sensitive information or cause a denial of service (application crash) via crafted input.
- Record
EUVD-2009-1951- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4wj9-j34x-wjxp No score
Off-by-one error in the apr_brigade_vprintf function in Apache APR-util before 1.3.5 on big...
Off-by-one error in the apr_brigade_vprintf function in Apache APR-util before 1.3.5 on big-endian platforms allows remote attackers to obtain sensitive information or cause a denial of service (application crash) via crafted input.
- Record
GHSA-4wj9-j34x-wjxp- Updated
- 2026-11-02
OSVBELL-CVE-2009-1956
CVE-2009-1956 does not affect BellSoft software
- Record
BELL-CVE-2009-1956- CVSS 2.0
- 6.4 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:P - Updated
- 2026-11-02
OSV No score
Off-by-one error in the apr_brigade_vprintf function in Apache APR-util before 1.3.5 on big-endian platforms allows remote attackers to obtain sensitive information or cause a denial of service (application crash) via crafted input.
- Record
CVE-2009-1956- Updated
- 2026-11-02
OSVDEBIAN-CVE-2009-1956 No score
Off-by-one error in the apr_brigade_vprintf function in Apache APR-util before 1.3.5 on big-endian platforms allows remote attackers to obtain sensitive information or cause a denial of service (application crash) via crafted input.
- Record
DEBIAN-CVE-2009-1956- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:10268-1 No score
apache2-2.4.23-4.1 on GA media
These are all security issues fixed in the apache2-2.4.23-4.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:10268-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
apr-utilDebian:12 |
before 1.3.7+dfsg-1 | 1.3.7+dfsg-1 |
apr-utilDebian:13 |
before 1.3.7+dfsg-1 | 1.3.7+dfsg-1 |
apr-utilDebian:14 |
before 1.3.7+dfsg-1 | 1.3.7+dfsg-1 |
apr-utilRed Hat:enterprise_linux:4::as From an advisory covering 3 CVEs |
before 0:0.9.4-22.el4_8.1 | 0:0.9.4-22.el4_8.1 |
apr-util-debuginfoRed Hat:enterprise_linux:4::as From an advisory covering 3 CVEs |
before 0:0.9.4-22.el4_8.1 | 0:0.9.4-22.el4_8.1 |
apr-util-develRed Hat:enterprise_linux:4::as From an advisory covering 3 CVEs |
before 0:0.9.4-22.el4_8.1 | 0:0.9.4-22.el4_8.1 |
apr-utilRed Hat:enterprise_linux:4::desktop From an advisory covering 3 CVEs |
before 0:0.9.4-22.el4_8.1 | 0:0.9.4-22.el4_8.1 |
apr-util-debuginfoRed Hat:enterprise_linux:4::desktop From an advisory covering 3 CVEs |
before 0:0.9.4-22.el4_8.1 | 0:0.9.4-22.el4_8.1 |
apr-util-develRed Hat:enterprise_linux:4::desktop From an advisory covering 3 CVEs |
before 0:0.9.4-22.el4_8.1 | 0:0.9.4-22.el4_8.1 |
apr-utilRed Hat:enterprise_linux:4::es From an advisory covering 3 CVEs |
before 0:0.9.4-22.el4_8.1 | 0:0.9.4-22.el4_8.1 |
Show 71 moreShow less
| Package | Affected | Fixed |
|---|---|---|
apr-util-debuginfoRed Hat:enterprise_linux:4::es From an advisory covering 3 CVEs |
before 0:0.9.4-22.el4_8.1 | 0:0.9.4-22.el4_8.1 |
apr-util-develRed Hat:enterprise_linux:4::es From an advisory covering 3 CVEs |
before 0:0.9.4-22.el4_8.1 | 0:0.9.4-22.el4_8.1 |
apr-utilRed Hat:enterprise_linux:4::ws From an advisory covering 3 CVEs |
before 0:0.9.4-22.el4_8.1 | 0:0.9.4-22.el4_8.1 |
apr-util-debuginfoRed Hat:enterprise_linux:4::ws From an advisory covering 3 CVEs |
before 0:0.9.4-22.el4_8.1 | 0:0.9.4-22.el4_8.1 |
apr-util-develRed Hat:enterprise_linux:4::ws From an advisory covering 3 CVEs |
before 0:0.9.4-22.el4_8.1 | 0:0.9.4-22.el4_8.1 |
apr-utilRed Hat:enterprise_linux:5::client_workstation From an advisory covering 3 CVEs |
before 0:1.2.7-7.el5_3.1 | 0:1.2.7-7.el5_3.1 |
apr-util-debuginfoRed Hat:enterprise_linux:5::client_workstation From an advisory covering 3 CVEs |
before 0:1.2.7-7.el5_3.1 | 0:1.2.7-7.el5_3.1 |
apr-util-develRed Hat:enterprise_linux:5::client_workstation From an advisory covering 3 CVEs |
before 0:1.2.7-7.el5_3.1 | 0:1.2.7-7.el5_3.1 |
apr-utilRed Hat:enterprise_linux:5::client From an advisory covering 3 CVEs |
before 0:1.2.7-7.el5_3.1 | 0:1.2.7-7.el5_3.1 |
apr-util-debuginfoRed Hat:enterprise_linux:5::client From an advisory covering 3 CVEs |
before 0:1.2.7-7.el5_3.1 | 0:1.2.7-7.el5_3.1 |
apr-util-docsRed Hat:enterprise_linux:5::client From an advisory covering 3 CVEs |
before 0:1.2.7-7.el5_3.1 | 0:1.2.7-7.el5_3.1 |
apr-utilRed Hat:enterprise_linux:5::server From an advisory covering 3 CVEs |
before 0:1.2.7-7.el5_3.1 | 0:1.2.7-7.el5_3.1 |
apr-util-debuginfoRed Hat:enterprise_linux:5::server From an advisory covering 3 CVEs |
before 0:1.2.7-7.el5_3.1 | 0:1.2.7-7.el5_3.1 |
apr-util-develRed Hat:enterprise_linux:5::server From an advisory covering 3 CVEs |
before 0:1.2.7-7.el5_3.1 | 0:1.2.7-7.el5_3.1 |
apr-util-docsRed Hat:enterprise_linux:5::server From an advisory covering 3 CVEs |
before 0:1.2.7-7.el5_3.1 | 0:1.2.7-7.el5_3.1 |
httpdRed Hat:enterprise_linux:3::as From an advisory covering 3 CVEs |
before 0:2.0.46-73.ent | 0:2.0.46-73.ent |
httpd-debuginfoRed Hat:enterprise_linux:3::as From an advisory covering 3 CVEs |
before 0:2.0.46-73.ent | 0:2.0.46-73.ent |
httpd-develRed Hat:enterprise_linux:3::as From an advisory covering 3 CVEs |
before 0:2.0.46-73.ent | 0:2.0.46-73.ent |
mod_sslRed Hat:enterprise_linux:3::as From an advisory covering 3 CVEs |
before 1:2.0.46-73.ent | 1:2.0.46-73.ent |
httpdRed Hat:enterprise_linux:3::desktop From an advisory covering 3 CVEs |
before 0:2.0.46-73.ent | 0:2.0.46-73.ent |
httpd-debuginfoRed Hat:enterprise_linux:3::desktop From an advisory covering 3 CVEs |
before 0:2.0.46-73.ent | 0:2.0.46-73.ent |
httpd-develRed Hat:enterprise_linux:3::desktop From an advisory covering 3 CVEs |
before 0:2.0.46-73.ent | 0:2.0.46-73.ent |
mod_sslRed Hat:enterprise_linux:3::desktop From an advisory covering 3 CVEs |
before 1:2.0.46-73.ent | 1:2.0.46-73.ent |
httpdRed Hat:enterprise_linux:3::es From an advisory covering 3 CVEs |
before 0:2.0.46-73.ent | 0:2.0.46-73.ent |
httpd-debuginfoRed Hat:enterprise_linux:3::es From an advisory covering 3 CVEs |
before 0:2.0.46-73.ent | 0:2.0.46-73.ent |
httpd-develRed Hat:enterprise_linux:3::es From an advisory covering 3 CVEs |
before 0:2.0.46-73.ent | 0:2.0.46-73.ent |
mod_sslRed Hat:enterprise_linux:3::es From an advisory covering 3 CVEs |
before 1:2.0.46-73.ent | 1:2.0.46-73.ent |
httpdRed Hat:enterprise_linux:3::ws From an advisory covering 3 CVEs |
before 0:2.0.46-73.ent | 0:2.0.46-73.ent |
httpd-debuginfoRed Hat:enterprise_linux:3::ws From an advisory covering 3 CVEs |
before 0:2.0.46-73.ent | 0:2.0.46-73.ent |
httpd-develRed Hat:enterprise_linux:3::ws From an advisory covering 3 CVEs |
before 0:2.0.46-73.ent | 0:2.0.46-73.ent |
mod_sslRed Hat:enterprise_linux:3::ws From an advisory covering 3 CVEs |
before 1:2.0.46-73.ent | 1:2.0.46-73.ent |
antRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:1.6.5-1jpp_1rh | 0:1.6.5-1jpp_1rh |
avalon-logkitRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:1.2-2jpp_4rh | 0:1.2-2jpp_4rh |
axisRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:1.2.1-1jpp_3rh | 0:1.2.1-1jpp_3rh |
classpathx-jafRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:1.0-2jpp_6rh | 0:1.0-2jpp_6rh |
classpathx-mailRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:1.1.1-2jpp_8rh | 0:1.1.1-2jpp_8rh |
geronimo-ejb-2.1-apiRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:1.0-0.M4.1jpp_10rh | 0:1.0-0.M4.1jpp_10rh |
geronimo-j2ee-1.4-apisRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:1.0-0.M4.1jpp_10rh | 0:1.0-0.M4.1jpp_10rh |
geronimo-j2ee-connector-1.5-apiRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:1.0-0.M4.1jpp_10rh | 0:1.0-0.M4.1jpp_10rh |
geronimo-j2ee-deployment-1.1-apiRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:1.0-0.M4.1jpp_10rh | 0:1.0-0.M4.1jpp_10rh |
geronimo-j2ee-management-1.0-apiRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:1.0-0.M4.1jpp_10rh | 0:1.0-0.M4.1jpp_10rh |
geronimo-jms-1.1-apiRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:1.0-0.M4.1jpp_10rh | 0:1.0-0.M4.1jpp_10rh |
geronimo-jsp-2.0-apiRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:1.0-0.M4.1jpp_10rh | 0:1.0-0.M4.1jpp_10rh |
geronimo-jta-1.0.1B-apiRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:1.0-0.M4.1jpp_10rh | 0:1.0-0.M4.1jpp_10rh |
geronimo-servlet-2.4-apiRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:1.0-0.M4.1jpp_10rh | 0:1.0-0.M4.1jpp_10rh |
geronimo-specsRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:1.0-0.M4.1jpp_10rh | 0:1.0-0.M4.1jpp_10rh |
geronimo-specs-javadocRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:1.0-0.M4.1jpp_10rh | 0:1.0-0.M4.1jpp_10rh |
jakarta-commons-modelerRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:2.0-3jpp_2rh | 0:2.0-3jpp_2rh |
log4jRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:1.2.12-1jpp_1rh | 0:1.2.12-1jpp_1rh |
mx4jRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 1:3.0.1-1jpp_4rh | 1:3.0.1-1jpp_4rh |
pcsc-liteRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:1.3.3-3.el4 | 0:1.3.3-3.el4 |
pcsc-lite-debuginfoRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:1.3.3-3.el4 | 0:1.3.3-3.el4 |
pcsc-lite-docRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:1.3.3-3.el4 | 0:1.3.3-3.el4 |
pcsc-lite-libsRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:1.3.3-3.el4 | 0:1.3.3-3.el4 |
rhpki-caRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:7.3.0-20.el4 | 0:7.3.0-20.el4 |
rhpki-java-toolsRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:7.3.0-10.el4 | 0:7.3.0-10.el4 |
rhpki-kraRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:7.3.0-14.el4 | 0:7.3.0-14.el4 |
rhpki-manageRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:7.3.0-19.el4 | 0:7.3.0-19.el4 |
rhpki-native-toolsRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:7.3.0-6.el4 | 0:7.3.0-6.el4 |
rhpki-ocspRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:7.3.0-13.el4 | 0:7.3.0-13.el4 |
rhpki-tksRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:7.3.0-13.el4 | 0:7.3.0-13.el4 |
tomcat5Red Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:5.5.23-0jpp_4rh.16 | 0:5.5.23-0jpp_4rh.16 |
tomcat5-common-libRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:5.5.23-0jpp_4rh.16 | 0:5.5.23-0jpp_4rh.16 |
tomcat5-jasperRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:5.5.23-0jpp_4rh.16 | 0:5.5.23-0jpp_4rh.16 |
tomcat5-jsp-2.0-apiRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:5.5.23-0jpp_4rh.16 | 0:5.5.23-0jpp_4rh.16 |
tomcat5-server-libRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:5.5.23-0jpp_4rh.16 | 0:5.5.23-0jpp_4rh.16 |
tomcat5-servlet-2.4-apiRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:5.5.23-0jpp_4rh.16 | 0:5.5.23-0jpp_4rh.16 |
xerces-j2Red Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:2.7.1-1jpp_1rh | 0:2.7.1-1jpp_1rh |
xml-commonsRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:1.3.02-2jpp_1rh | 0:1.3.02-2jpp_1rh |
xml-commons-apisRed Hat:certificate_system:7.3 From an advisory covering 39 CVEs |
before 0:1.3.02-2jpp_1rh | 0:1.3.02-2jpp_1rh |
apache2openSUSE:Tumbleweed From an advisory covering 48 CVEs |
before 2.4.23-4.1 | 2.4.23-4.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2009-1956 is a medium vulnerability (CVSS 6.4) in Apache Apr-util, published June 6, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 12.0%, the 96th percentile. Fixed in apr-util 1.3.7+dfsg-1.
References
secunia.com/advisories/35487
apache.org/dist/apr/CHANGES-APR-UTIL-1.3
vupen.com/english/advisories/2009/1907
redhat.com/archives/fedora-package-announce/2009-June/msg01228.html
www-01.ibm.com/support/docview.wss?uid=swg1PK88341
mandriva.com/security/advisories?name=MDVSA-2009:131
Show 194 moreShow less
openwall.com/lists/oss-security/2009/06/06/1
securityfocus.com/bid/35251
marc.info?l=bugtraq&m=129190899612998&w=2
svn.apache.org/viewvc?view=rev&revision=768417
oracle.com/technetwork/topics/security/cpuapr2013-1899555.html
security.gentoo.org/glsa/glsa-200907-03.xml
mail-archive.com/dev%40apr.apache.org/msg21592.html
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11567
ubuntu.com/usn/usn-786-1
bugzilla.redhat.com/show_bug.cgi?id=504390
lists.apple.com/archives/security-announce/2009/Nov/msg00000.html
support.apple.com/kb/HT3937
lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f%40%3Ccvs.httpd.apache.org%3E
nvd.nist.gov/vuln/detail/CVE-2009-1956
github.com/advisories/GHSA-4wj9-j34x-wjxp
docs.bell-sw.com/security/cves/CVE-2009-1956
security-tracker.debian.org/tracker/CVE-2009-1956
access.redhat.com/errata/RHSA-2009:1107
security.access.redhat.com/data/csaf/v2/advisories/2009/rhsa-2009_1107.json
cve.org/CVERecord?id=CVE-2009-0023
suse.com/security/cve/CVE-2009-0023
This page doesn't list everything
Left out here: 80 references. The JSON record has them.