PT-2017-14155 · Irssi+2 · Irssi+2

Joseph Bisch · Published 2017-10-22 · Updated 2024-06-15 · CVE-2017-15721

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Irssi versions prior to 1.0.5

Description The issue arises from certain incorrectly formatted DCC CTCP messages that could cause a NULL pointer dereference. This problem is separate but similar to other known issues.

Recommendations For versions prior to 1.0.5, update to version 1.0.5 or later to resolve the issue. As a temporary workaround, consider restricting the handling of DCC CTCP messages until a patch is available.

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2020-1665

ALT-PU-2020-3488

ALT-PU-2024-3802

CVE-2017-15721

DLA-1217-1

DSA-4016-1

MGASA-2017-0393

OPENSUSE-SU-2017:2832-1

OPENSUSE-SU-2017:2835-1

OPENSUSE-SU-2024:10865-1

USN-3465-1

Affected Products

Alt Linux

Irssi

Ubuntu

References · 86

• https://cve.org/CVERecord?id=CVE-2017-15721 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7052 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2017-15721 · Vendor Advisory
• http://openwall.com/lists/oss-security/2017/10/22/4 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-15721 · Vendor Advisory
• https://errata.altlinux.org/ALT-PU-2024-3802 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15721 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15723 · Security Note
• https://ubuntu.com/security/CVE-2017-15721 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7054 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2017:2835-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3465-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2017:2832-1 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10965 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15227 · Security Note