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CVE-2015-5343

Published: Apr 14, 2016Updated: May 6, 2026 Sources: CVE List NVD BDUCWE-119
7.6HIGH
NVD MITRE
EPSS Score
9.4%
Top 4.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

Integer overflow in util.c in mod_dav_svn in Apache Subversion 1.7.x, 1.8.x before 1.8.15, and 1.9.x before 1.9.3 allows remote authenticated users to cause a denial of service (subversion server crash or memory consumption) and possibly execute arbitrary code via a skel-encoded request body, which triggers an out-of-bounds read and heap-based buffer overflow.

In plain language

AI Worth attention

CVE-2015-5343 is a Subversion server bug that a logged-in user could use to crash the server; if you run Apache Subversion (mod_dav_svn), you should update because it’s a denial-of-service risk.

Executive summary

CVE-2015-5343 is an integer overflow in util.c within mod_dav_svn (Apache Subversion) that can be triggered by a remote authenticated client to cause denial of service (and possibly more serious memory corruption) via a crafted request body.

If affected, business impact
Subversion server downtimeService disruption to usersPossible server compromise riskIncreased support and recovery time

What to do now

  1. Check whether you run Apache Subversion with the WebDAV module (mod_dav_svn) on this server.
  2. Check your installed Subversion version; treat any of these as potentially affected: 1.7.x, 1.8.x before 1.8.15, or 1.9.x before 1.9.3.
  3. Upgrade Subversion to a fixed version: 1.8.15 or newer, or 1.9.3 or newer (follow your vendor’s package instructions for Debian).
  4. After upgrading, restart the Subversion service/Apache and verify the service is responding (and that users can still access repositories).
Patch / advisory Some work to apply

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:LI:LA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-119

Affected Products

apache
oss-project·USaka apache httpd, apache http server
subversionOn-prem
OSS Libraries / generic-library
debian
oss-project·GBaka debian gnu/linux
debian linuxOn-premOS
Operating Systems / linux-distro
Сообщество свободного программного обеспечения
oss-projectaka fsf
Debian GNU/LinuxOn-premOS
Operating Systems / linux-distro
Apache Software Foundation
oss-project·USaka apache foundation
SubversionOn-premLibrary
OSS Libraries
and 1 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2015-5343?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

http://www.debian.org/security/2015/dsa-3424
debian.org
http://www.securitytracker.com/id/1034470
securitytracker.com
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.405261
slackware.com
and 3 more references View all →

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