PT-2009-4415 · Irssi · Irssi

Nemo · Published 2009-06-06 · Updated 2024-06-15 · CVE-2009-1959

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Name of the Vulnerable Software and Affected Versions: irssi version 0.8.13

Description: The issue is caused by an off-by-one error in the event wallops function, which can be triggered by remote IRC servers sending an empty command. This results in a one-byte buffer under-read and a one-byte buffer underflow, leading to a denial of service (crash).

Recommendations: For irssi version 0.8.13, update to a newer version that contains a fix for this issue to prevent remote IRC servers from causing a denial of service.

Exploit

Fix

Weakness Enumeration

CWE-189

Related Identifiers

CVE-2009-1959

OPENSUSE-SU-2024:10455-1

Affected Products

Irssi

References · 27

• 🔥 http://irssi.org/ChangeLog · Exploit
• 🔥 http://xorl.wordpress.com/2009/05/28/irssi-event_wallops-off-by-one-readwrite · Exploit
• 🔥 http://bugs.irssi.org/index.php?do=details&task_id=662 · Exploit
• 🔥 https://exploit-db.com/exploits/33041 · Exploit
• https://osv.dev/vulnerability/openSUSE-SU-2024:10455-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2009-1959 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2009-1959 · Security Note
• http://mandriva.com/security/advisories?name=MDVSA-2009:133 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2009-1959 · Vendor Advisory
• http://ubuntu.com/usn/usn-800-1 · Vendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2009-1959 · Vendor Advisory
• https://redhat.com/archives/fedora-package-announce/2009-August/msg00146.html · Vendor Advisory
• https://suse.com/security/cve/CVE-2016-7044 · Note
• http://secunia.com/advisories/35812 · Note