Description
ncurses before 6.4 20230408, when used by a setuid application, allows local users to trigger security-relevant memory corruption via malformed data in a terminfo database file that is found in $HOME/.terminfo or reached via the TERMINFO or TERM environment variable.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | ncurses | 6.4-3 | — |
| Debian 13 | ncurses | 6.4-3 | — |
| Debian 12 | ncurses | 6.4-3 | — |
| Debian 10 | ncurses | 6.1+20181013-2+deb10u5 | DLA-3682-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | ncurses | 6.3-2ubuntu0.1 | USN-6099-1 |
| Ubuntu 20.04 LTS | ncurses | 6.2-0ubuntu2.1 | USN-6099-1 |
| Ubuntu 18.04 LTS | ncurses | 6.1-1ubuntu1.18.04.1 | USN-6099-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | ncurses | 6.0+20160213-1ubuntu1+esm3 | USN-6099-1 |
| Ubuntu Pro 14.04 LTS | ncurses | 5.9+20140118-1ubuntu1+esm3 | USN-6099-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | ncurses +5 | 6.2-10.20210508.el9 | RHSA-2023:6698 |
| RHEL 8 | ncurses +6 | 6.1-9.20180224.el8_8.1 | RHSA-2023:5249 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.2 EUS | ncurses +5 | 6.2-8.20210508.el9_2.1 | RHSA-2023:7361 |
| RHEL 8.6 EUS | ncurses +6 | 6.1-9.20180224.el8_6.1 | RHSA-2024:0416 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | ncurses +5 | 6.2-10.20210508.el9 | ALSA-2023:6698 |
| AlmaLinux 8 | ncurses +6 | 6.1-9.20180224.el8_8.1 | ALSA-2023:5249 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | ncurses | 6.1-150000.5.15.1 | SUSE-SU-2023:2111-1 |
| SLES 12 SP5 | ncurses | 5.9-81.1 | SUSE-SU-2023:2112-1 |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP5 | ncurses | 5.9-81.1 | SUSE-SU-2023:2112-1 |
| SLE Real Time 15 SP3 | ncurses | 6.1-150000.5.15.1 | SUSE-SU-2023:2111-1 |
| SLE Micro 5.4 | ncurses | 6.1-150000.5.15.1 | SUSE-SU-2023:2111-1 |
| SLE Micro 5.3 | ncurses | 6.1-150000.5.15.1 | SUSE-SU-2023:2111-1 |
| SLE Micro 5.2 | ncurses | 6.1-150000.5.15.1 | SUSE-SU-2023:2111-1 |
| SLE Micro 5.1 | ncurses | 6.1-150000.5.15.1 | SUSE-SU-2023:2111-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.4 | ncurses | 6.1-150000.5.15.1 | SUSE-SU-2023:2111-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.3 | ncurses | 6.1-150000.5.15.1 | SUSE-SU-2023:2111-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | ncurses | 6.4_p20230424-r0 | — |
| Alpine v3.23 | ncurses | 6.4_p20230424-r0 | — |
| Alpine v3.22 | ncurses | 6.4_p20230424-r0 | — |
| Alpine v3.21 | ncurses | 6.4_p20230424-r0 | — |
| Alpine v3.20 | ncurses | 6.4_p20230424-r0 | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | ncurses | 6.4_p20230424-r0 | — |
| Alpine v3.17 | ncurses | 6.3_p20221119-r1 | — |
| Alpine v3.16 | ncurses | 6.3_p20220521-r1 | — |
| Alpine v3.15 | ncurses | 6.3_p20211120-r2 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | ncurses +7 | 6.2-4.20200222.amzn2023.0.4 | ALAS2023-2023-220 |
| Amazon Linux 2 | ncurses +7 | 6.0-8.20170212.amzn2.1.5 | ALAS2-2023-2096 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | ncurses | 6.4-1 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | ncurses +5 | 6.2-10.20210508.el9 | ELSA-2023-6698 |
| Oracle Linux 8 | ncurses +6 | 6.1-9.20180224.el8_8.1 | ELSA-2023-5249 |
Advisories 22
- ALSA-2023:6698 Moderate: ncurses security and bug fix update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2023:5249 Moderate: ncurses security update AlmaLinux Security Advisories · Oct 29, 2026
- SSA-398330 SSA-398330: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP >= V3.1.0 and < V3.1.5 Siemens ProductCERT · Oct 13, 2026
- WID-SEC-2023-2917 Xerox FreeFlow Print Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 30, 2026
- USN-6099-1 ncurses vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- RHSA-2023:6698 Red Hat Security Advisory: ncurses security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2023:7361 Red Hat Security Advisory: ncurses security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2024:0416 Red Hat Security Advisory: ncurses security update Red Hat Security Advisories (RHSA) · Jun 3, 2026
- RHSA-2023:5249 Red Hat Security Advisory: ncurses security update Red Hat Security Advisories (RHSA) · Jun 3, 2026
- DLA-3682-1 ncurses - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2023:2111-1 Security update for ncurses SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2112-1 Security update for ncurses SUSE / openSUSE Security Updates · Feb 4, 2026
- NCSC-2025-0382 Kwetsbaarheden verholpen in Siemens producten NCSC-NL (Netherlands) · Dec 9, 2025
- SSA-202008 SSA-202008: Multiple Vulnerabilities in Ruggedcom Rox Before V2.17.0 Siemens ProductCERT · Dec 9, 2025
- WID-SEC-2023-2390 Red Hat Enterprise Linux: Schwachstelle ermöglicht Manipulation von Dateien BSI CERT-Bund (WID) · Nov 6, 2025
- ICSA-23-348-10 Siemens SIMATIC S7-1500 CISA ICS & IT advisories · Aug 12, 2025
- WID-SEC-2024-1307 Red Hat OpenShift Service Mesh Containers: Mehrere Schwachstellen BSI CERT-Bund (WID) · Feb 5, 2025
- ELSA-2023-6698 Moderate: ncurses security and bug fix update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Nov 11, 2023
- WID-SEC-2023-2679 Oracle Communications: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 17, 2023
- ELSA-2023-5249 Moderate: ncurses security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Sep 20, 2023
- ALAS2-2023-2096 Important: ncurses security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jun 29, 2023
- ALAS2023-2023-220 Important: ncurses security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jun 27, 2023
References
- https://www.openwall.com/lists/oss-security/2023/04/13/4
- http://ncurses.scripts.mit.edu/?p=ncurses.git%3Ba=commit%3Bh=eb51b1ea1f75a0ec17c9c5937cb28df1e8eeec56
- https://www.openwall.com/lists/oss-security/2023/04/12/5
- [oss-security] 20230419 Re: ncurses fixes upstream mailing-list
- [oss-security] 20230419 RE: [EXTERNAL] Re: ncurses fixes upstream mailing-list
- https://security.netapp.com/advisory/ntap-20230517-0009/
- https://support.apple.com/kb/HT213843
- https://support.apple.com/kb/HT213844
- https://support.apple.com/kb/HT213845
- [debian-lts-announce] 20231203 [SECURITY] [DLA 3682-1] ncurses security update mailing-list
- FEDORA-2024-96090dafaf vendor-advisory