CVE-2017-5193
published 2017-03-03CVE-2017-5193: The nickcmp function in Irssi before 0.8.21 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a message without a…
PriorityP337high7.5CVSS 3.0
AVNACLPRNUINSUCNINAH
EPSS
5.59%
92.0th percentile
The nickcmp function in Irssi before 0.8.21 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a message without a nick.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | irssi | < irssi 0.8.21-1 (bookworm) | irssi 0.8.21-1 (bookworm) |
| irssi | irssi | < 0.8.21 | 0.8.21 |
| irssi | irssi | >= 0 < 0.8.21-1 | 0.8.21-1 |
| irssi | irssi | >= 0 < 0.8.21-1 | 0.8.21-1 |
| irssi | irssi | >= 0 < 0.8.21-1 | 0.8.21-1 |
| irssi | irssi | >= 0 < 0.8.21-1 | 0.8.21-1 |
| irssi | irssi | >= 0 < 0.8.15-5ubuntu3.1 | 0.8.15-5ubuntu3.1 |
| irssi | irssi | >= 0 < 0.8.19-1ubuntu1.3 | 0.8.19-1ubuntu1.3 |
CVSS provenance
nvdv3.07.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv7.5HIGH
vendor_debian7.5HIGH
vendor_redhat7.5HIGH
vendor_ubuntu3.3LOW
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Ubuntu
Irssi vulnerabilities
vendor_ubuntu·2017-02-01·CVSS 3.3
CVE-2016-7553 [LOW] Irssi vulnerabilities
Title: Irssi vulnerabilities
Summary: Several security issues were fixed in Irssi.
It was discovered that the Irssi buf.pl script set incorrect permissions. A
local attacker could use this issue to retrieve another user's window
contents. (CVE-2016-7553)
Joseph Bisch discovered that Irssi incorrectly handled comparing nicks. A
remote attacker could use this issue to cause Irssi to crash, resulting in
a denial of service, or possibly execute arbitrary code. (CVE-2017-5193)
It was discovered that Irssi incorrectly handled invalid nick messages. A
remote attacker could use this issue to cause Irssi to crash, resulting in
a denial of service, or possibly execute arbitrary code. (CVE-2017-5194)
Joseph Bisch discovered that Irssi incorrectly handled certain incomplete
control codes. A remot
Red Hat
irssi: Null pointer dereference in the nickcmp function
vendor_redhat·2017-01-05·CVSS 7.5
CVE-2017-5193 [HIGH] CWE-476 irssi: Null pointer dereference in the nickcmp function
irssi: Null pointer dereference in the nickcmp function
The nickcmp function in Irssi before 0.8.21 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a message without a nick.
Statement: Red Hat Product Security has rated this issue as having Low security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
Package: irssi (Red Hat Enterprise Linux 6) - Will not fix
Package: irssi (Red Hat Enterprise Linux 7) - Will not fix
Debian
CVE-2017-5193: irssi - The nickcmp function in Irssi before 0.8.21 allows remote attackers to cause a d...
vendor_debian·2017·CVSS 7.5
CVE-2017-5193 [HIGH] CVE-2017-5193: irssi - The nickcmp function in Irssi before 0.8.21 allows remote attackers to cause a d...
The nickcmp function in Irssi before 0.8.21 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a message without a nick.
Scope: local
bookworm: resolved (fixed in 0.8.21-1)
bullseye: resolved (fixed in 0.8.21-1)
forky: resolved (fixed in 0.8.21-1)
sid: resolved (fixed in 0.8.21-1)
trixie: resolved (fixed in 0.8.21-1)
GHSA
GHSA-g4fg-wxpr-x2cj: The nickcmp function in Irssi before 0
ghsa_unreviewed·2022-05-14
CVE-2017-5193 [HIGH] CWE-476 GHSA-g4fg-wxpr-x2cj: The nickcmp function in Irssi before 0
The nickcmp function in Irssi before 0.8.21 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a message without a nick.
OSV
CVE-2017-5193: The nickcmp function in Irssi before 0
osv·2017-03-03·CVSS 7.5
CVE-2017-5193 [HIGH] CVE-2017-5193: The nickcmp function in Irssi before 0
The nickcmp function in Irssi before 0.8.21 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a message without a nick.
OSV
irssi vulnerabilities
osv·2017-02-01·CVSS 3.3
CVE-2016-7553 [LOW] irssi vulnerabilities
irssi vulnerabilities
It was discovered that the Irssi buf.pl script set incorrect permissions. A
local attacker could use this issue to retrieve another user's window
contents. (CVE-2016-7553)
Joseph Bisch discovered that Irssi incorrectly handled comparing nicks. A
remote attacker could use this issue to cause Irssi to crash, resulting in
a denial of service, or possibly execute arbitrary code. (CVE-2017-5193)
It was discovered that Irssi incorrectly handled invalid nick messages. A
remote attacker could use this issue to cause Irssi to crash, resulting in
a denial of service, or possibly execute arbitrary code. (CVE-2017-5194)
Joseph Bisch discovered that Irssi incorrectly handled certain incomplete
control codes. A remote attacker could use this issue to cause Irssi to
crash, resul
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2017-5193 irssi: Null pointer dereference in the nickcmp function
bugzilla·2017-01-06·CVSS 7.5
CVE-2017-5193 [HIGH] CVE-2017-5193 irssi: Null pointer dereference in the nickcmp function
CVE-2017-5193 irssi: Null pointer dereference in the nickcmp function
A null pointer dereference vulnerability was found in irssi.
External References:
https://irssi.org/security/irssi_sa_2017_01.txt
Upstream patch:
https://github.com/irssi/irssi/commit/6c6c42e3d1b49d90aacc0b67f8540471cae02a1d
CVE assignment:
http://seclists.org/oss-sec/2017/q1/26
Discussion:
Created irssi tracking bugs for this issue:
Affects: fedora-all [bug 1410829]
Affects: epel-5 [bug 1410830]
---
* A rogue IRC server is required to be able to crash irssi via this vulnerability. An attacker would need to either gain control of a IRC server, or trick the user into connecting a rogue IRC server => Lowering the severity due to access complexity.
* From the upstream patch, only the part concerning src/irc/cor
Bugzilla
CVE-2017-5193 CVE-2017-5194 CVE-2017-5356 irssi: various flaws [epel-5]
bugzilla·2017-01-06·CVSS 7.5
CVE-2017-5193 [HIGH] CVE-2017-5193 CVE-2017-5194 CVE-2017-5356 irssi: various flaws [epel-5]
CVE-2017-5193 CVE-2017-5194 CVE-2017-5356 irssi: various flaws [epel-5]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora EPEL.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
[bug automatically created by: add-tracking-bugs]
Discu
Bugzilla
CVE-2017-5193 CVE-2017-5194 CVE-2017-5195 CVE-2017-5196 CVE-2017-5356 irssi: various flaws [fedora-all]
bugzilla·2017-01-06·CVSS 7.5
CVE-2017-5193 [HIGH] CVE-2017-5193 CVE-2017-5194 CVE-2017-5195 CVE-2017-5196 CVE-2017-5356 irssi: various flaws [fedora-all]
CVE-2017-5193 CVE-2017-5194 CVE-2017-5195 CVE-2017-5196 CVE-2017-5356 irssi: various flaws [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multi
http://www.openwall.com/lists/oss-security/2017/01/06/1http://www.securityfocus.com/bid/95310https://irssi.org/security/irssi_sa_2017_01.txthttps://lists.debian.org/debian-lts-announce/2017/12/msg00022.htmlhttps://security.gentoo.org/glsa/201701-45http://www.openwall.com/lists/oss-security/2017/01/06/1http://www.securityfocus.com/bid/95310https://irssi.org/security/irssi_sa_2017_01.txthttps://lists.debian.org/debian-lts-announce/2017/12/msg00022.htmlhttps://security.gentoo.org/glsa/201701-45
2017-03-03
Published