Every CVE Search/ Get API key

CVE-2017-9468

In Irssi before 1.0.3, when receiving a DCC message without source nick/host, it attempts to...

7.5 HighFix available

In Irssi before 1.0.3, when receiving a DCC message without source nick/host, it attempts to dereference a NULL pointer. Thus, remote IRC servers can cause a crash.

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

3.66%Up 2.4 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 7.5

In Irssi before 1.0.3, when receiving a DCC message without source nick/host, it attempts to dereference a NULL pointer. Thus, remote IRC servers can cause a crash.

Record
CVE-2017-9468
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness
CWE-476
Updated
2026-11-02
CVE List No score

In Irssi before 1.0.3, when receiving a DCC message without source nick/host, it attempts to dereference a NULL pointer. Thus, remote IRC servers can cause a crash.

Record
CVE-2017-9468
Updated
2026-11-02
EUVDEUVD-2017-18400 No score

In Irssi before 1.0.3, when receiving a DCC message without source nick/host, it attempts to dereference a NULL pointer. Thus, remote IRC servers can cause a crash.

Record
EUVD-2017-18400
Updated
2026-11-03
GitHub AdvisoriesGHSA-8366-xqph-v5cf 7.5

In Irssi before 1.0.3, when receiving a DCC message without source nick/host, it attempts to...

In Irssi before 1.0.3, when receiving a DCC message without source nick/host, it attempts to dereference a NULL pointer. Thus, remote IRC servers can cause a crash.

Record
GHSA-8366-xqph-v5cf
CVSS 3.0
7.5 HighCVSS: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-2017-9468 7.5

In Irssi before 1.0.3, when receiving a DCC message without source nick/host, it attempts to dereference a NULL pointer. Thus, remote IRC servers can cause a crash.

Record
ALPINE-CVE-2017-9468
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSV 7.5

In Irssi before 1.0.3, when receiving a DCC message without source nick/host, it attempts to dereference a NULL pointer. Thus, remote IRC servers can cause a crash.

Record
CVE-2017-9468
CVSS 3.0
7.5 HighCVSS: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-2017-9468 7.5

In Irssi before 1.0.3, when receiving a DCC message without source nick/host, it attempts to dereference a NULL pointer. Thus, remote IRC servers can cause a crash.

Record
DEBIAN-CVE-2017-9468
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2017-9468 7.5

In Irssi before 1.0.3, when receiving a DCC message without source nick/host, it attempts to dereference a NULL pointer. Thus, remote IRC servers can cause a crash.

Record
UBUNTU-CVE-2017-9468
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVMGASA-2017-0185 No score

Updated irssi packages fix security vulnerabilities

It was discovered that Irssi incorrectly handled certain DCC messages. A malicious IRC server could use this issue to cause Irssi to crash, resulting in a denial of service (CVE-2017-9468).

Joseph Bisch discovered that Irssi incorrectly handled receiving incorrectly quoted DCC files. A remote attacker could possibly use this issue to cause Irssi to crash, resulting in a denial of service (CVE-2017-9469).

Record
MGASA-2017-0185
Updated
2026-11-02
OSVopenSUSE-SU-2017:1505-1 No score

Security update for irssi

This update to irssi 1.0.3 fixes the following vulnerabilities:

  • CVE-2017-9469: irssi: dcc crash with incorrect quoting (bsc#1043052)
  • CVE-2017-9468: irssi: dcc message crash without nick/host (bsc#1043051)
Record
openSUSE-SU-2017:1505-1
Updated
2026-11-02
OSVopenSUSE-SU-2017:1515-1 No score

Security update for irssi

This update to irssi 1.0.3 fixes the following vulnerabilities:

  • CVE-2017-9469: irssi: dcc crash with incorrect quoting (bsc#1043052)
  • CVE-2017-9468: irssi: dcc message crash without nick/host (bsc#1043051)
Record
openSUSE-SU-2017:1515-1
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-3317-1 No score

irssi vulnerabilities

It was discovered that Irssi incorrectly handled certain DCC messages. A malicious IRC server could use this issue to cause Irssi to crash, resulting in a denial of service. (CVE-2017-9468)

Joseph Bisch discovered that Irssi incorrectly handled receiving incorrectly quoted DCC files. A remote attacker could possibly use this issue to cause Irssi to crash, resulting in a denial of service. (CVE-2017-9469)

Record
USN-3317-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
irssi
Alpine:v3.10
 before 1.0.3-r0
1.0.3-r0
irssi
Alpine:v3.11
 before 1.0.3-r0
1.0.3-r0
irssi
Alpine:v3.12
 before 1.0.3-r0
1.0.3-r0
irssi
Alpine:v3.13
 before 1.0.3-r0
1.0.3-r0
irssi
Alpine:v3.14
 before 1.0.3-r0
1.0.3-r0
irssi
Alpine:v3.15
 before 1.0.3-r0
1.0.3-r0
irssi
Alpine:v3.16
 before 1.0.3-r0
1.0.3-r0
irssi
Alpine:v3.17
 before 1.0.3-r0
1.0.3-r0
irssi
Alpine:v3.3
 before 0.8.21-r1
0.8.21-r1
irssi
Alpine:v3.4
 before 0.8.21-r1
0.8.21-r1
Show 18 moreShow less
Affected packages
PackageAffectedFixed
irssi
Alpine:v3.5
 before 0.8.21-r1
0.8.21-r1
irssi
Alpine:v3.6
 before 1.0.3-r0
1.0.3-r0
irssi
Alpine:v3.7
 before 1.0.3-r0
1.0.3-r0
irssi
Alpine:v3.8
 before 1.0.3-r0
1.0.3-r0
irssi
Alpine:v3.9
 before 1.0.3-r0
1.0.3-r0
irssi
Debian:12
 before 1.0.3-1
1.0.3-1
irssi
Debian:13
 before 1.0.3-1
1.0.3-1
irssi
Debian:14
 before 1.0.3-1
1.0.3-1
irssi
Debian:7
From an advisory covering 2 CVEs
 before 0.8.15-5+deb7u2, plus listed versions
0.8.15-50.8.15-5+deb7u1
0.8.15-5+deb7u2
irssi
Debian:8
From an advisory covering 2 CVEs
 before 0.8.17-1+deb8u4, plus listed versions
0.8.17-10.8.17-1+deb8u10.8.17-1+deb8u1~bpo70+10.8.17-1+deb8u20.8.17-1+deb8u3
0.8.17-1+deb8u4
irssi
Debian:9
From an advisory covering 2 CVEs
 before 1.0.2-1+deb9u1, plus listed versions
1.0.2-1
1.0.2-1+deb9u1
irssi
Mageia:5
From an advisory covering 2 CVEs
 before 0.8.21-1.1.mga5
0.8.21-1.1.mga5
irssi
Ubuntu:14.04:LTS
 before 0.8.15-5ubuntu3.2, plus listed versions
0.8.15-5ubuntu20.8.15-5ubuntu30.8.15-5ubuntu3.1
0.8.15-5ubuntu3.2
irssi
Ubuntu:16.04:LTS
 before 0.8.19-1ubuntu1.4, plus listed versions
0.8.17-1ubuntu10.8.17-1ubuntu20.8.18-1ubuntu10.8.19-1ubuntu10.8.19-1ubuntu1.20.8.19-1ubuntu1.3
0.8.19-1ubuntu1.4
irssi
Ubuntu:14.04:LTS
From an advisory covering 2 CVEs
 before 0.8.15-5ubuntu3.2, plus listed versions
0.8.15-5ubuntu20.8.15-5ubuntu30.8.15-5ubuntu3.1
0.8.15-5ubuntu3.2
irssi
Ubuntu:16.04:LTS
From an advisory covering 2 CVEs
 before 0.8.19-1ubuntu1.4, plus listed versions
0.8.17-1ubuntu10.8.17-1ubuntu20.8.18-1ubuntu10.8.19-1ubuntu10.8.19-1ubuntu1.20.8.19-1ubuntu1.3
0.8.19-1ubuntu1.4
irssi
SUSE:Package Hub 12
From an advisory covering 2 CVEs
 before 1.0.3-25.1
1.0.3-25.1
irssi
openSUSE:Tumbleweed
From an advisory covering 26 CVEs
 before 1.2.3-2.4
1.2.3-2.4

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2017-9468 is a high vulnerability (CVSS 7.5) in Irssi, published June 6, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.66%, the 89th percentile. Fixed in irssi 1.0.3-r0.

References

Show 38 moreShow less
Pages All vulnerabilities Browse Docs Sources Guide Get API key
MoveEnter Open