CVE-2018-11803
HighSubversion's mod_dav_svn Apache HTTPD module versions 1.11.0 and 1.10.0 to 1.10.3 will crash after dereferencing an uninitialized pointer if the client omits the root path in a recursive directory listing operation.
Published Feb 5, 2019 · Updated Aug 4, 2026 · Also known as ALPINE-CVE-2018-11803, DEBIAN-CVE-2018-11803, SUSE-SU-2019:0195-1, UBUNTU-CVE-2018-11803
Key Facts
Patch immediately- CVE-2018-11803 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting Subversion (Apache), Ubuntu Linux (Canonical), libsvn_auth_gnome_keyring-1-0 (suse) and 9 more products.
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 58% probability of exploitation in the next 30 days.
- Fixed versions are available, including Subversion <=1.10.3, Subversion 1.10.0-3.3.1, Subversion 1.10.0-lp150.2.3.1.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (30-day exploit likelihood)
58%
Higher than 99.0% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
Get the full CVE-2018-11803 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
Subversion's mod_dav_svn Apache HTTPD module versions 1.11.0 and 1.10.0 to 1.10.3 will crash after dereferencing an uninitialized pointer if the client omits the root path in a recursive directory listing operation.
Affected Products
69 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| SubversionApache | 1.11.0, >= Apache Subversion 1.11.0, 1.10.0 to 1.10.3 | 1.10.3 |
| Ubuntu LinuxCanonical | 18.10 | n/a |
| libsvn_auth_gnome_keyring-1-0suse | See advisory | 1.10.0-lp150.2.3.1 |
| libsvn_auth_kwallet-1-0suse | See advisory | 1.10.0-lp150.2.3.1 |
| subversion-bash-completionsuse | See advisory | 1.10.0-lp150.2.3.1 |
Patched Releases
Subversion
<=1.10.3, 1.10.0-3.3.1, 1.10.0-lp150.2.3.1, 1.10.2-5.ph3, 1.10.4-1, 1.10.4-1.ph1, 1.10.4-1.ph2, 1.10.4-r0, 1.11.1-1, 1.11.1-r0, 1.14.1-1.11
libsvn_auth_gnome_keyring-1-0
1.10.0-lp150.2.3.1, 1.14.1-1.11
libsvn_auth_kwallet-1-0
1.10.0-lp150.2.3.1, 1.14.1-1.11
subversion-bash-completion
1.10.0-3.3.1, 1.10.0-lp150.2.3.1, 1.14.1-1.11
subversion-devel
1.10.0-3.3.1, 1.10.0-lp150.2.3.1, 1.14.1-1.11
subversion-perl
1.10.0-3.3.1, 1.10.0-lp150.2.3.1, 1.14.1-1.11
subversion-python
1.10.0-3.3.1, 1.10.0-lp150.2.3.1, 1.14.1-1.11
subversion-python-ctypes
1.10.0-lp150.2.3.1
subversion-ruby
1.10.0-lp150.2.3.1, 1.14.1-1.11
subversion-server
1.10.0-3.3.1, 1.10.0-lp150.2.3.1, 1.14.1-1.11
subversion-tools
1.10.0-3.3.1, 1.10.0-lp150.2.3.1, 1.14.1-1.11
Timeline
Publicly disclosed
Feb 5, 2019
Last updated
Aug 4, 2026
Weakness Type
- CWE-476 NULL Pointer Dereference
- CWE-824 Access of Uninitialized Pointer
References
- advisoryhttps://bugzilla.suse.com/1122842
- advisoryhttps://security.alpinelinux.org/vuln/CVE-2018-11803
- advisoryGLSA-201904-08
- advisoryhttps://security-tracker.debian.org/tracker/CVE-2018-11803
- advisoryhttps://subversion.apache.org/security/CVE-2018-11803-advisory.txt
FAQ
Common Questions.
Subversion's mod_dav_svn Apache HTTPD module versions 1.11.0 and 1.10.0 to 1.10.3 will crash after dereferencing an uninitialized pointer if the client omits the root path in a recursive directory listing operation.
Affected: Subversion (Apache) versions 1.11.0, >= Apache Subversion 1.11.0, 1.10.0 to 1.10.3; Ubuntu Linux (Canonical) versions 18.10; libsvn_auth_gnome_keyring-1-0 (suse), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Subversion <=1.10.3, Subversion 1.10.0-3.3.1, Subversion 1.10.0-lp150.2.3.1.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
Is CVE-2018-11803 Running On Your Attack Surface?
Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.
Request A Demo