Input validation error in Subversion - CVE-2018-11803
Published: January 25, 2019
Vulnerability identifier: #VU17221
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2018-11803
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Apache Foundation
Affected software:
Subversion
Subversion
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input when processing recursive directory listing operations. A remote authenticated attacker can omit the root path, trigger the mod_dav_svn to deference an uninitialized pointer variable and, as a result, crash the HTTPD worker process handling the request.
How to mitigate CVE-2018-11803
Install updates from vendor's website.