Description
The mod_dav_svn module for the Apache HTTP Server, as distributed in Apache Subversion 1.5.x and 1.6.x before 1.6.17, when the SVNPathAuthz short_circuit option is enabled, allows remote attackers to cause a denial of service (infinite loop and memory consumption) in opportunistic circumstances by requesting data.
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 | subversion | 1.6.17dfsg-1 | — |
| Debian 13 | subversion | 1.6.17dfsg-1 | — |
| Debian 12 | subversion | 1.6.17dfsg-1 | — |
| Debian 6.0 | subversion | 1.6.12dfsg-6 | DSA-2251-1 |
| Debian 5.0 | subversion | 1.5.1dfsg1-7 | DSA-2251-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | subversion +8 | 1.6.11-2.el6_1.4 | RHSA-2011:0862 |
| RHEL 5 | subversion +5 | 1.6.11-7.el5_6.4 | RHSA-2011:0862 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | subversion | 1.9.5-1.1 | openSUSE-SU-2024:10538-1 |
Advisories 3
- RHSA-2011:0862 Red Hat Security Advisory: subversion security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-2251-1 subversion - several Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10538-1 libsvn_auth_gnome_keyring-1-0-1.9.5-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- DSA-2251 vendor-advisory
- USN-1144-1 vendor-advisory
- http://support.apple.com/kb/HT5130
- MDVSA-2011:106 vendor-advisory
- 44849 third-party-advisory
- RHSA-2011:0862 vendor-advisory
- FEDORA-2011-8341 vendor-advisory
- http://subversion.apache.org/security/CVE-2011-1783-advisory.txt
- oval:org.mitre.oval:def:18889 vdb-entry signature
- https://bugzilla.redhat.com/show_bug.cgi?id=709112
- 44888 third-party-advisory
- APPLE-SA-2012-02-01-1 vendor-advisory
- 45162 third-party-advisory
- 1025618 vdb-entry
- 44681 third-party-advisory
- 48091 vdb-entry
- FEDORA-2011-8352 vendor-advisory
- 44633 third-party-advisory
- http://svn.apache.org/repos/asf/subversion/tags/1.6.17/CHANGES