// For flags

CVE-2022-24070

Apache Subversion mod_dav_svn is vulnerable to memory corruption

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Subversion's mod_dav_svn is vulnerable to memory corruption. While looking up path-based authorization rules, mod_dav_svn servers may attempt to use memory which has already been freed. Affected Subversion mod_dav_svn servers 1.10.0 through 1.14.1 (inclusive). Servers that do not use mod_dav_svn are not affected.

La función mod_dav_svn de Subversion es vulnerable a una corrupción de memoria. Mientras buscan reglas de autorización basadas en rutas, los servidores mod_dav_svn pueden intentar usar memoria que ya ha sido liberada. Afecta a los servidores mod_dav_svn de Subversion 1.10.0 a 1.14.1 (inclusive). Los servidores que no usan mod_dav_svn no están afectados

A use-after-free vulnerability was found in Subversion in the mod_dav_svn Apache HTTP server (HTTPd) module. While looking up path-based authorization (authz) rules, multiple calls to the post_config hook can invalidate cached pointers to object-pools, which Subversion subsequently uses. This issue crashes the single HTTPd worker thread or the entire HTTPd server process, depending on the configuration of the Apache HTTPd server.

*Credits: Apache Subversion would like to thank Thomas Weißschuh, cis-solutions.eu.
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-01-27 CVE Reserved
  • 2022-04-12 CVE Published
  • 2024-08-03 CVE Updated
  • 2024-11-16 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-416: Use After Free
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Apache
Search vendor "Apache"
 Subversion
Search vendor "Apache" for product "Subversion"
 >= 1.10.0 < 1.10.8
Search vendor "Apache" for product "Subversion" and version " >= 1.10.0 < 1.10.8"
-
Affected
Apache
Search vendor "Apache"
 Subversion
Search vendor "Apache" for product "Subversion"
 >= 1.14.0 < 1.14.2
Search vendor "Apache" for product "Subversion" and version " >= 1.14.0 < 1.14.2"
-
Affected
Debian
Search vendor "Debian"
 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 10.0
Search vendor "Debian" for product "Debian Linux" and version "10.0"
-
Affected
Debian
Search vendor "Debian"
 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 11.0
Search vendor "Debian" for product "Debian Linux" and version "11.0"
-
Affected
Fedoraproject
Search vendor "Fedoraproject"
 Fedora
Search vendor "Fedoraproject" for product "Fedora"
 35
Search vendor "Fedoraproject" for product "Fedora" and version "35"
-
Affected
Fedoraproject
Search vendor "Fedoraproject"
 Fedora
Search vendor "Fedoraproject" for product "Fedora"
 36
Search vendor "Fedoraproject" for product "Fedora" and version "36"
-
Affected
Apple
Search vendor "Apple"
 Macos
Search vendor "Apple" for product "Macos"
 >= 12.0 < 12.5
Search vendor "Apple" for product "Macos" and version " >= 12.0 < 12.5"
-
Affected