Memory leak in www.privoxy privoxy

1) Memory leak

EUVDB-ID: #VU32457

Risk: Medium

CVSSv3.1: 4.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:U/RC:C]

CVE-ID: CVE-2015-1030

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to memory leak within the rfc2553_connect_to function in jbsocket.c in Privoxy before 3.0.22 allows remote attackers to cause a denial of service (memory consumption) via a large number of requests that are rejected because the socket limit is reached. A remote attacker can perform a denial of service attack.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

privoxy: 3.0.21 - 3.0.28

External links

http://secunia.com/advisories/62123
http://www.openwall.com/lists/oss-security/2015/01/11/1
http://www.privoxy.org/announce.txt

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.