NULL pointer dereference in ZNC ZNC

1) NULL pointer dereference

EUVDB-ID: #VU30625

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2010-2488

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error in ZNC before 0.092 caused by traffic stats when there are unauthenticated connections. A remote attacker can perform a denial of service (DoS) attack.

Mitigation

Update to version 0.092.

Vulnerable software versions

ZNC: 0.023 - 0.090

External links

http://access.redhat.com/security/cve/cve-2010-2488
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=584929
http://security-tracker.debian.org/tracker/CVE-2010-2488
http://wiki.znc.in/ChangeLog/0.092

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.