irssi: NULL pointer dereference due to overlong nicks while splitting the message
Published Oct 22, 2017
7.5
HIGHCVSS 3.0
EPSS 2.30%
Description
In Irssi before 1.0.5, overlong nicks or targets may result in a NULL pointer dereference while splitting the message.
Affected products
No data.
Configuration 2
- 8.0
- 9.0
No data.
Red Hat Enterprise Linux 6
irssi
Not affected
Red Hat Enterprise Linux 7
irssi
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | irssi | Not affected | n/a |
| Red Hat Enterprise Linux 7 | irssi | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the versions of irssi as shipped with Red Hat Enterprise Linux 6 and 7.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 2.30% (0.02300) | 82.70th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.30% (0.02300) | 80.98th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.22% (0.00225) | 61.23th | v3 (v2023.03.01) |
| Dec 29, 2023 | 0.22% (0.00225) | 60.78th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.22% (0.00223) | 58.78th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Sep 2, 2022 | 0.95% (0.00954) | 34.50th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00954) | 32.50th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00954) | 16.28th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.83% (0.00833) | 24.58th | v1 |
| Jan 6, 2022 | 0.83% (0.00833) | 23.96th | v1 |
| Sep 1, 2021 | 0.83% (0.00833) | 57.50th | v1 |
| Apr 14, 2021 | 0.83% (0.00833) | 0.00th | v1 |
References (7)
- http://openwall.com/lists/oss-security/2017/10/22/4 x_refsource_CONFIRMMailing ListMitigationPatchThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2017-15723 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1510958 Issue Tracking
- https://irssi.org/security/irssi_sa_2017_10.txt x_refsource_CONFIRMMitigationPatchVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-15723
- https://www.cve.org/CVERecord?id=CVE-2017-15723
- https://www.debian.org/security/2017/dsa-4016 vendor-advisoryx_refsource_DEBIANThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://openwall.com/lists/oss-security/2017/10/22/4 | x_refsource_CONFIRMMailing ListMitigationPatchThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2017-15723 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1510958 | Issue Tracking | |
| https://irssi.org/security/irssi_sa_2017_10.txt | x_refsource_CONFIRMMitigationPatchVendor Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-15723 | ||
| https://www.cve.org/CVERecord?id=CVE-2017-15723 | ||
| https://www.debian.org/security/2017/dsa-4016 | vendor-advisoryx_refsource_DEBIANThird Party Advisory |
Change history (0)
No recorded changes yet.