CVE-2017-15721 — NULL Pointer Dereference in Irssi

CWE-476 — NULL Pointer Dereference9 documents7 sources
Severity
7.5HIGHNVD
OSV9.8
EPSS
0.7%
top 27.77%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
IrssiDebian IrssiDebian Linux
Timeline
PublishedOct 22
Latest updateMay 14

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.

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages4 packages

▶debiandebian/irssi< irssi 1.0.5-1 (bookworm)
▶Debianirssi/irssi< 1.0.5-1+3
▶Ubuntuirssi/irssi< 0.8.15-5ubuntu3.3+1
▶NVDirssi/irssi1.0.4

Also affects: Debian Linux 7.0, 8.0, 9.0

Patches

Patch: openwall.com ↗Patch: irssi.org ↗Patch: openwall.com ↗

🔴Vulnerability Details

3
GHSA
GHSA-v58c-vj35-4q53: In Irssi before 1↗2022-05-14
▶
OSV
irssi vulnerabilities↗2017-10-26
▶
OSV
CVE-2017-15721: In Irssi before 1↗2017-10-22
▶

📋Vendor Advisories

3
Ubuntu
Irssi vulnerabilities↗2017-10-26
▶
Red Hat
irssi: NULL pointer dereference due to incorrectly formatted DCC CTCP messages↗2017-10-22
▶
Debian
CVE-2017-15721: irssi - In Irssi before 1.0.5, certain incorrectly formatted DCC CTCP messages could cau...↗2017
▶

💬Community

2
Bugzilla
CVE-2017-15227 CVE-2017-15228 CVE-2017-15721 CVE-2017-15722 CVE-2017-15723 irssi: various flaws [fedora-all]↗2017-11-08
▶
Bugzilla
CVE-2017-15721 irssi: NULL pointer dereference due to incorrectly formatted DCC CTCP messages↗2017-11-08
▶