Vulnerability CVE-2017-15721
Published: 2017-10-22   Modified: 2017-10-23

Description:
In Irssi before 1.0.5, certain incorrectly formatted DCC CTCP messages could cause a NULL pointer dereference. This is a separate, but similar, issue relative to CVE-2017-9468.

Type:

CWE-476

 (NULL Pointer Dereference)

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Irssi -> Irssi 
Debian -> Debian linux 

 References:
http://openwall.com/lists/oss-security/2017/10/22/4
https://irssi.org/security/irssi_sa_2017_10.txt
https://lists.debian.org/debian-lts-announce/2017/12/msg00022.html
https://www.debian.org/security/2017/dsa-4016
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