CVE-2017-15721

Published: Oct 22, 2017Modified: May 13, 2026

7.5

Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 3.6

Source: NVD

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.

Affected (4)

Products: Irssi: Irssi · Debian: Debian Linux

1 product

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Irssi Irssi	Up to 1.0.4

Configuration B

3 vulnerable

Vulnerable Software	Affected Versions
Debian Debian Linux	Version 7.0
Debian Debian Linux	Version 8.0
Debian Debian Linux	Version 9.0

Related CWEs

CWE-476

NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

References (8)

http://openwall.com/lists/oss-security/2017/10/22/4

Source: cve@mitre.org

Mailing ListMitigationPatchThird Party Advisory

https://irssi.org/security/irssi_sa_2017_10.txt

Source: cve@mitre.org

MitigationPatchVendor Advisory

https://lists.debian.org/debian-lts-announce/2017/12/msg00022.html

Source: cve@mitre.org

Mailing ListThird Party Advisory

https://www.debian.org/security/2017/dsa-4016

Source: cve@mitre.org

Third Party Advisory

http://openwall.com/lists/oss-security/2017/10/22/4

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListMitigationPatchThird Party Advisory

https://irssi.org/security/irssi_sa_2017_10.txt

Source: af854a3a-2127-422b-91ae-364da2661108

MitigationPatchVendor Advisory

https://lists.debian.org/debian-lts-announce/2017/12/msg00022.html

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

https://www.debian.org/security/2017/dsa-4016

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

Timeline

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