Vulnerability Monitor

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CVE-2009-1959

Off-by-one error in the event_wallops function in fe-common/irc/fe-events.c in irssi 0.8.13 allows remote IRC servers to cause a denial of service (crash) via an empty command, which triggers a one-byte buffer under-read and a one-byte buffer underflow.

Published

2009-06-08T01:00:00.767

Last Modified

2025-04-09T00:30:58.490

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.0 (MEDIUM)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-189

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	irssi	irssi	0.8.13	Yes

References

http://bugs.irssi.org/index.php?do=details&task_id=662 Exploit, Vendor Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html ([email protected])
http://secunia.com/advisories/35685 ([email protected])
http://secunia.com/advisories/35812 ([email protected])
http://secunia.com/advisories/36152 ([email protected])
http://www.irssi.org/ChangeLog Exploit, Vendor Advisory ([email protected])
http://www.mandriva.com/security/advisories?name=MDVSA-2009:133 ([email protected])
http://www.openwall.com/lists/oss-security/2009/05/29/3 ([email protected])
http://www.securityfocus.com/bid/35399 ([email protected])
http://www.securitytracker.com/id?1022410 ([email protected])
http://www.ubuntu.com/usn/usn-800-1 ([email protected])
http://www.vupen.com/english/advisories/2009/1596 ([email protected])
http://xorl.wordpress.com/2009/05/28/irssi-event_wallops-off-by-one-readwrite/ Exploit ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/51184 ([email protected])
https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00146.html ([email protected])
http://bugs.irssi.org/index.php?do=details&task_id=662 Exploit, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/35685 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/35812 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/36152 (af854a3a-2127-422b-91ae-364da2661108)
http://www.irssi.org/ChangeLog Exploit, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.mandriva.com/security/advisories?name=MDVSA-2009:133 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2009/05/29/3 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/35399 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id?1022410 (af854a3a-2127-422b-91ae-364da2661108)
http://www.ubuntu.com/usn/usn-800-1 (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2009/1596 (af854a3a-2127-422b-91ae-364da2661108)
http://xorl.wordpress.com/2009/05/28/irssi-event_wallops-off-by-one-readwrite/ Exploit (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/51184 (af854a3a-2127-422b-91ae-364da2661108)
https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00146.html (af854a3a-2127-422b-91ae-364da2661108)