CVE-2018-7050
An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. A NULL pointer dereference...
An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. A NULL pointer dereference occurs for an "empty" nick.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. A NULL pointer dereference occurs for an "empty" nick.
- Record
CVE-2018-7050- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-476
- Updated
- 2026-11-02
CVE List No score
An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. A NULL pointer dereference occurs for an "empty" nick.
- Record
CVE-2018-7050- Updated
- 2026-11-02
EUVDEUVD-2018-18793 No score
An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. A NULL pointer dereference occurs for an "empty" nick.
- Record
EUVD-2018-18793- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-96hj-65hm-4xjf
An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. A NULL pointer dereference...
An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. A NULL pointer dereference occurs for an "empty" nick.
- Record
GHSA-96hj-65hm-4xjf- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-476
- Updated
- 2026-11-02
OSVALPINE-CVE-2018-7050
An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. A NULL pointer dereference occurs for an "empty" nick.
- Record
ALPINE-CVE-2018-7050- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-03
OSV
An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. A NULL pointer dereference occurs for an "empty" nick.
- Record
CVE-2018-7050- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Show 7 moreShow less
OSVDEBIAN-CVE-2018-7050
An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. A NULL pointer dereference occurs for an "empty" nick.
- Record
DEBIAN-CVE-2018-7050- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2018-7050
An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. A NULL pointer dereference occurs for an "empty" nick.
- Record
UBUNTU-CVE-2018-7050- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVMGASA-2018-0132 No score
Updated irssi packages fix security vulnerability
Null pointer dereference when an "empty" nick has been observed by Irssi (CVE-2018-7050).
Certain nick names could result in out of bounds access when printing theme strings (CVE-2018-7051).
When the number of windows exceed the available space, Irssi would crash due to Null pointer dereference (CVE-2018-7052).
Use after free when SASL messages are received in unexpected order (CVE-2018-7053).
Use after free when server is disconnected during netsplits (CVE-2018-7054).
- Record
MGASA-2018-0132- Updated
- 2026-11-02
OSVopenSUSE-SU-2018:0475-1 No score
Security update for irssi
This update for irssi fixes the following security issues:
- CVE-2018-7054: Use after free when server is disconnected during netsplits
- CVE-2018-7053: Use after free when SASL messages are received in unexpected order
- CVE-2018-7050: Null pointer dereference when an 'empty' nick has been observed
- CVE-2018-7052: When the number of windows exceed the available space, Irssi would crash due to Null pointer dereference
- CVE-2018-7051: Certain nick names could result in out of bounds access when printing theme strings
- Record
openSUSE-SU-2018:0475-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2018:0477-1 No score
Security update for irssi
This update for irssi fixes the following security issues:
- CVE-2018-7054: Use after free when server is disconnected during netsplits
- CVE-2018-7053: Use after free when SASL messages are received in unexpected order
- CVE-2018-7050: Null pointer dereference when an 'empty' nick has been observed
- CVE-2018-7052: When the number of windows exceed the available space, Irssi would crash due to Null pointer dereference
- CVE-2018-7051: Certain nick names could result in out of bounds access when printing theme strings
- Record
openSUSE-SU-2018:0477-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:10865-1 No score
irssi-1.2.3-2.4 on GA media
These are all security issues fixed in the irssi-1.2.3-2.4 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:10865-1- Updated
- 2026-11-02
OSVUSN-3590-1 No score
irssi vulnerabilities
It was discovered that Irssi incorrectly handled certain empty nick names. An attacker could possibly use this issue to cause a denial of service. (CVE-2018-7050)
It was discovered that Irssi incorrectly handled certain nick names. An attacker could possibly use this to access sensitive information. (CVE-2018-7051)
It was discovered that Irssi incorrectly handled an increase in the number of windows. An attacker could possibly use this issue to cause a denial of service. (CVE-2018-7052)
It was discovered that Irssi incorrectly handled certain messages. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 16.04 LTS and Ubuntu 17.10. (CVE-2018-7053)
It was discovered that Irssi incorrectly handled certain disconnections. An attacker could possibly use this to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 17.10. (CVE-2018-7054)
- Record
USN-3590-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
irssiAlpine:v3.10 |
before 1.1.1-r0 | 1.1.1-r0 |
irssiAlpine:v3.11 |
before 1.1.1-r0 | 1.1.1-r0 |
irssiAlpine:v3.12 |
before 1.1.1-r0 | 1.1.1-r0 |
irssiAlpine:v3.13 |
before 1.1.1-r0 | 1.1.1-r0 |
irssiAlpine:v3.14 |
before 1.1.1-r0 | 1.1.1-r0 |
irssiAlpine:v3.15 |
before 1.1.1-r0 | 1.1.1-r0 |
irssiAlpine:v3.16 |
before 1.1.1-r0 | 1.1.1-r0 |
irssiAlpine:v3.17 |
before 1.1.1-r0 | 1.1.1-r0 |
irssiAlpine:v3.18 |
before 1.1.1-r0 | 1.1.1-r0 |
irssiAlpine:v3.19 |
before 1.1.1-r0 | 1.1.1-r0 |
Show 21 moreShow less
| Package | Affected | Fixed |
|---|---|---|
irssiAlpine:v3.20 |
before 1.1.1-r0 | 1.1.1-r0 |
irssiAlpine:v3.21 |
before 1.1.1-r0 | 1.1.1-r0 |
irssiAlpine:v3.22 |
before 1.1.1-r0 | 1.1.1-r0 |
irssiAlpine:v3.23 |
before 1.1.1-r0 | 1.1.1-r0 |
irssiAlpine:v3.24 |
before 1.1.1-r0 | 1.1.1-r0 |
irssiAlpine:v3.6 |
before 1.0.6-r0 | 1.0.6-r0 |
irssiAlpine:v3.7 |
before 1.0.6-r0 | 1.0.6-r0 |
irssiAlpine:v3.8 |
before 1.1.1-r0 | 1.1.1-r0 |
irssiAlpine:v3.9 |
before 1.1.1-r0 | 1.1.1-r0 |
irssiDebian:12 |
before 1.0.7-1 | 1.0.7-1 |
irssiDebian:13 |
before 1.0.7-1 | 1.0.7-1 |
irssiDebian:14 |
before 1.0.7-1 | 1.0.7-1 |
irssiDebian:7 From an advisory covering 2 CVEs |
before 0.8.15-5+deb7u5, plus listed versions 0.8.15-50.8.15-5+deb7u10.8.15-5+deb7u20.8.15-5+deb7u30.8.15-5+deb7u4 |
0.8.15-5+deb7u5 |
irssiDebian:9 From an advisory covering 9 CVEs |
before 1.0.7-1~deb9u1, plus listed versions 1.0.2-11.0.2-1+deb9u11.0.2-1+deb9u21.0.2-1+deb9u31.0.3-11.0.4-11.0.5-11.0.7-1~deb9u1~bpo8+1 |
1.0.7-1~deb9u1 |
irssiMageia:6 From an advisory covering 5 CVEs |
before 1.0.7-1.mga6 | 1.0.7-1.mga6 |
irssiUbuntu:14.04:LTS |
before 0.8.15-5ubuntu3.5, plus listed versions 0.8.15-5ubuntu20.8.15-5ubuntu30.8.15-5ubuntu3.10.8.15-5ubuntu3.20.8.15-5ubuntu3.30.8.15-5ubuntu3.4 |
0.8.15-5ubuntu3.5 |
irssiUbuntu:16.04:LTS |
before 0.8.19-1ubuntu1.7, plus listed versions 0.8.17-1ubuntu10.8.17-1ubuntu20.8.18-1ubuntu10.8.19-1ubuntu10.8.19-1ubuntu1.2 Show 4 moreShow less0.8.19-1ubuntu1.30.8.19-1ubuntu1.40.8.19-1ubuntu1.50.8.19-1ubuntu1.6 |
0.8.19-1ubuntu1.7 |
irssiUbuntu:14.04:LTS From an advisory covering 5 CVEs |
before 0.8.15-5ubuntu3.5, plus listed versions 0.8.15-5ubuntu20.8.15-5ubuntu30.8.15-5ubuntu3.10.8.15-5ubuntu3.20.8.15-5ubuntu3.30.8.15-5ubuntu3.4 |
0.8.15-5ubuntu3.5 |
irssiUbuntu:16.04:LTS From an advisory covering 5 CVEs |
before 0.8.19-1ubuntu1.7, plus listed versions 0.8.17-1ubuntu10.8.17-1ubuntu20.8.18-1ubuntu10.8.19-1ubuntu10.8.19-1ubuntu1.2 Show 4 moreShow less0.8.19-1ubuntu1.30.8.19-1ubuntu1.40.8.19-1ubuntu1.50.8.19-1ubuntu1.6 |
0.8.19-1ubuntu1.7 |
irssiSUSE:Package Hub 12 From an advisory covering 5 CVEs |
before 1.1.1-43.1 | 1.1.1-43.1 |
irssiopenSUSE:Tumbleweed From an advisory covering 26 CVEs |
before 1.2.3-2.4 | 1.2.3-2.4 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| affected | OSV | |
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-7050 is a high vulnerability (CVSS 7.5) in Irssi, published February 15, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.31%, the 83rd percentile. Fixed in irssi 1.1.1-r0.
References
debian.org/security/2018/dsa-4162
irssi.org/security/irssi_sa_2018_02.txt
openwall.com/lists/oss-security/2018/02/15/1
usn.ubuntu.com/3590-1
nvd.nist.gov/vuln/detail/CVE-2018-7050
github.com/advisories/GHSA-96hj-65hm-4xjf
Show 38 moreShow less
security.alpinelinux.org/vuln/CVE-2018-7050
security-tracker.debian.org/tracker/CVE-2018-7050
advisories.mageia.org/MGASA-2018-0132.html
bugs.mageia.org/show_bug.cgi?id=22609
ubuntu.com/security/CVE-2018-7050
cve.org/CVERecord?id=CVE-2018-7050
bugzilla.suse.com/1081238
suse.com/security/cve/CVE-2018-7050