Description
ncurses 6.3 before patch 20220416 has an out-of-bounds read and segmentation violation in convert_strings in tinfo/read_entry.c in the terminfo library.
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 | 6.3+20220423-1 | — |
| Debian 13 | ncurses | 6.3+20220423-1 | — |
| Debian 12 | ncurses | 6.3+20220423-1 | — |
| Debian 10 | ncurses | 6.1+20181013-2+deb10u3 | DLA-3167-1 |
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+esm2 | USN-6099-1, USN-5477-1 |
| Ubuntu Pro 14.04 LTS | ncurses | 5.9+20140118-1ubuntu1+esm2 | USN-6099-1, USN-5477-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | ncurses +5 | 6.2-10.20210508.el9_6.2 | RHSA-2025:12876 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.4 EUS | ncurses +5 | 6.2-10.20210508.el9_4.1 | RHSA-2025:16414 |
| RHEL 9.2 E4S | ncurses +5 | 6.2-8.20210508.el9_2.2 | RHSA-2025:16418 |
| RHEL 9.0 E4S | ncurses +5 | 6.2-8.20210508.el9_0.1 | RHSA-2025:17006 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | ncurses | 6.2-10.20210508.el9_6.2 | RLSA-2025:12876 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | ncurses | 6.1-150000.5.12.1 | SUSE-SU-2022:2717-1 |
| SLES 15 SP3 | ncurses | 6.1-150000.5.12.1 | SUSE-SU-2022:2717-1 |
| SLES 12 SP5 | ncurses | 5.9-78.1 | SUSE-SU-2022:2718-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP5 | ncurses | 5.9-78.1 | SUSE-SU-2022:2718-1 |
| SLE Micro 5.2 | ncurses | 6.1-150000.5.12.1 | SUSE-SU-2022:2717-1 |
| SLE Micro 5.1 | ncurses | 6.1-150000.5.12.1 | SUSE-SU-2022:2717-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.4 | ncurses | 6.1-150000.5.12.1 | SUSE-SU-2022:2717-1 |
| openSUSE Leap 15.3 | ncurses | 6.1-150000.5.12.1 | SUSE-SU-2022:2717-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.2 | ncurses | 6.1-150000.5.12.1 | SUSE-SU-2022:2717-2 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | ncurses | 6.3_p20220416-r0 | — |
| Alpine v3.23 | ncurses | 6.3_p20220416-r0 | — |
| Alpine v3.22 | ncurses | 6.3_p20220416-r0 | — |
| Alpine v3.21 | ncurses | 6.3_p20220416-r0 | — |
| Alpine v3.20 | ncurses | 6.3_p20220416-r0 | — |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | ncurses | 6.3_p20220416-r0 | — |
| Alpine v3.18 | ncurses | 6.3_p20220416-r0 | — |
| Alpine v3.17 | ncurses | 6.3_p20220416-r0 | — |
| Alpine v3.16 | ncurses | 6.3_p20220416-r0 | — |
| Alpine v3.15 | ncurses | 6.3_p20211120-r1 | — |
| Alpine v3.14 | ncurses | 6.2_p20210612-r1 | — |
| Alpine v3.13 | ncurses | 6.2_p20210109-r1 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | ncurses +7 | 6.2-4.20200222.amzn2023.0.3 | ALAS2023-2023-023 |
| Amazon Linux 2 | ncurses +7 | 6.0-8.20170212.amzn2.1.4 | ALAS2-2022-1893 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | ncurses | 6.3-2 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | ncurses +5 | 6.2-10.20210508.el9_6.2 | ELSA-2025-12876 |
Advisories 17
- WID-SEC-2022-1846 Apple macOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 11, 2026
- USN-6099-1 ncurses vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- USN-5477-1 ncurses vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- RHSA-2025:16418 Red Hat Security Advisory: ncurses security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2025:16414 Red Hat Security Advisory: ncurses security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2025:12876 Red Hat Security Advisory: ncurses security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2025:17006 Red Hat Security Advisory: ncurses security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DLA-3167-1 ncurses - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2022:2717-1 Security update for ncurses SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:2717-2 Security update for ncurses SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:2718-1 Security update for ncurses SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2025-1719 Red Hat Enterprise Linux (ncurses): Schwachstelle ermöglicht nicht spezifizierten Angriff BSI CERT-Bund (WID) · Dec 1, 2025
- RLSA-2025:12876 Low: ncurses security update Rocky Linux Security Advisories · Oct 4, 2025
- ELSA-2025-12876 Low: ncurses security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Aug 5, 2025
- WID-SEC-2023-0561 Xerox FreeFlow Print Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 18, 2023
- ALAS2023-2023-023 Moderate: ncurses security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Feb 22, 2023
- ALAS2-2022-1893 Moderate: ncurses security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Dec 6, 2022
References
- https://lists.gnu.org/archive/html/bug-ncurses/2022-04/msg00014.html
- https://lists.gnu.org/archive/html/bug-ncurses/2022-04/msg00016.html
- https://support.apple.com/kb/HT213488
- [debian-lts-announce] 20221029 [SECURITY] [DLA 3167-1] ncurses security update mailing-list
- 20221030 APPLE-SA-2022-10-27-5 Additional information for APPLE-SA-2022-10-24-2 macOS Ventura 13 mailing-list
- 20221030 APPLE-SA-2022-10-24-2 macOS Ventura 13 mailing-list