Vulnerability identifier: #VU77708
Vulnerability risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-119
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
pjsip
Universal components / Libraries /
Libraries used by multiple products
Vendor: pjsip
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error within PJSIP DNS resolver. A remote attacker can send a specially crafted DNS request to the application, trigger memory corruption and perform a denial of service (DoS) attack.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
pjsip: 2.0 - 2.13
External links
http://github.com/pjsip/pjproject/commit/d1c5e4da5bae7f220bc30719888bb389c905c0c5
http://www.pjsip.org/pjlib-util/docs/html/group__PJ__DNS__RESOLVER.htm
http://github.com/pjsip/pjproject/security/advisories/GHSA-q9cp-8wcq-7pfr
http://github.com/pjsip/pjproject/security/advisories/GHSA-p6g5-v97c-w5q4
http://github.com/pjsip/pjproject/releases/tag/2.13.1
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.