irssi: Use-after-free while updating the internal nick list
Published Jul 7, 2017
9.8
CRITICALCVSS 3.0
EPSS 2.94%
Description
An issue was discovered in Irssi before 1.0.4. While updating the internal nick list, Irssi could incorrectly use the GHashTable interface and free the nick while updating it. This would then result in use-after-free conditions on each access of the hash table.
Affected products
No data.
No data.
Red Hat Enterprise Linux 6
irssi
Will not fix
Red Hat Enterprise Linux 7
irssi
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | irssi | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | irssi | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
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:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
AV:N/AC:L/Au:N/C:P/I:P/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 3, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 2.94% (0.02935) | 86.64th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.94% (0.02935) | 85.26th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.83% (0.00831) | 72.40th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.27% (0.03274) | 78.43th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.32% (0.00316) | 70.67th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.32% (0.00316) | 69.58th | v3 (v2023.03.01) |
| May 8, 2023 | 0.32% (0.00316) | 65.84th | v3 (v2023.03.01) |
| Apr 22, 2023 | 0.22% (0.00223) | 59.09th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.32% (0.00317) | 65.67th | 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)
- https://access.redhat.com/security/cve/CVE-2017-10966 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1473234 Issue Tracking
- https://github.com/irssi/irssi/commit/5e26325317c72a04c1610ad952974e206384d291 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://irssi.org/security/irssi_sa_2017_07.txt x_refsource_CONFIRMPatchVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-10966
- https://www.cve.org/CVERecord?id=CVE-2017-10966
- https://www.debian.org/security/2017/dsa-4016 vendor-advisoryx_refsource_DEBIAN
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2017-10966 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1473234 | Issue Tracking | |
| https://github.com/irssi/irssi/commit/5e26325317c72a04c1610ad952974e206384d291 | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| https://irssi.org/security/irssi_sa_2017_07.txt | x_refsource_CONFIRMPatchVendor Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-10966 | ||
| https://www.cve.org/CVERecord?id=CVE-2017-10966 | ||
| https://www.debian.org/security/2017/dsa-4016 | vendor-advisoryx_refsource_DEBIAN |
Change history (0)
No recorded changes yet.