Denial of service in Apache Subversion



| Updated: 2017-03-16
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2011-1752
CWE-ID CWE-476
Exploitation vector Network
Public exploit This vulnerability is being exploited in the wild.
Vulnerable software
 Subversion
Server applications / Frameworks for developing and running applications

Vendor Apache Foundation

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Null pointer dereference

EUVDB-ID: #VU2933

Risk: High

CVSSv4.0: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2011-1752

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS conditions on the target system.

The weakness exists due to NULL pointer dereference in the mod_dav_svn module when processing baselined WebDAV resources. A remote attacker can create a specially crafted request, send it to the victim and cause the Subversion server to crash.

Successful exploitation of the vulnerability results in denial of service on the vulnerable system.

Note: the vulnerability was being actively exploited.

Mitigation

Upgrade to the latest version of Apache Subversion (1.6.17 or later).

Vulnerable software versions

Subversion: 1.6.0 - 1.6.16

CPE2.3 External links

https://subversion.apache.org/security/CVE-2011-1752-advisory.txt


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.



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