CVE-2017-15227

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

Irssi before 1.0.5, while waiting for the channel synchronisation, may incorrectly fail to remove destroyed channels from the query list, resulting in use-after-free conditions when updating the state later on.

Affected (1)

Products: Irssi: Irssi

Irssi

1 product

Irssi

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Irssi Irssi	Up to 1.0.4

Related CWEs

CWE-416

Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

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

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

Source: cve@mitre.org

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

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

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

Timeline

No history available yet.