#VU15903 Memory leak in Squid


Published: 2018-11-15

Vulnerability identifier: #VU15903

Vulnerability risk: Medium

CVSSv3.1: 7.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-19132

CWE-ID: CWE-401

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Squid
Server applications / IDS/IPS systems, Firewalls and proxy servers

Vendor: Squid-cache.org

Description

The vulnerability allows a remote attacker to perform denial of service (DoS) attack.
The vulnerability exists due to memory leak when processing SNMP requests. A remote attacker can send a specially crafted SNMP request via the proxy server, trigger excessive consumption of memory resources on the system and denial of service conditions.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Squid: 4.0.1 - 4.3

External links
http://www.squid-cache.org/Advisories/SQUID-2018_5.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.


Latest bulletins with this vulnerability


Amazon Linux AMI update for squid
OpenSUSE Linux update for squid
OpenSUSE Linux update for squid
Multiple vulnerabilities in Squid