Description
xterm through Patch 370, when Sixel support is enabled, allows attackers to trigger a buffer overflow in set_sixel in graphics_sixel.c via crafted text.
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 | xterm | 370-2 | — |
| Debian 13 | xterm | 370-2 | — |
| Debian 12 | xterm | 370-2 | — |
| Debian 9 | xterm | 327-2+deb9u2 | DLA-2913-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | xterm | No fix yet | — |
| Ubuntu 26.04 LTS | xterm | No fix yet | — |
| Ubuntu 25.10 | xterm | No fix yet | — |
| Ubuntu 24.04 LTS | xterm | No fix yet | — |
| Ubuntu 22.04 LTS | xterm | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | xterm | No fix yet | — |
| Ubuntu 18.04 LTS | xterm | No fix yet | — |
| Ubuntu 16.04 LTS | xterm | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | xterm +1 | 366-12.el9_6 | RHSA-2025:14075 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | xterm +1 | 366-12.el9_6 | ALSA-2025:14075 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | xterm | 366-12.el9_6 | RLSA-2025:14075 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | xterm | 330-150200.11.6.1 | SUSE-SU-2022:3953-1 |
| SLES 15 SP3 | xterm | 330-150200.11.6.1 | SUSE-SU-2022:3953-1 |
| SLES 12 SP5 | xterm | 308-5.6.1 | SUSE-SU-2022:3952-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP5 | xterm | 308-5.6.1 | SUSE-SU-2022:3952-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | mlterm | 3.9.2-3.1 | openSUSE-SU-2024:12733-1 |
| openSUSE Leap 15.4 | xterm | 330-150200.11.6.1 | SUSE-SU-2022:3953-1 |
| openSUSE Leap 15.3 | xterm | 330-150200.11.6.1 | SUSE-SU-2022:3953-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | xterm | 371-r0 | — |
| Alpine v3.23 | xterm | 371-r0 | — |
| Alpine v3.22 | xterm | 371-r0 | — |
| Alpine v3.21 | xterm | 371-r0 | — |
| Alpine v3.20 | xterm | 371-r0 | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | xterm | 371-r0 | — |
| Alpine v3.18 | xterm | 371-r0 | — |
| Alpine v3.17 | xterm | 371-r0 | — |
| Alpine v3.16 | xterm | 371-r0 | — |
| Alpine v3.15 | xterm | 371-r0 | — |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | xterm | 372-1 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | xterm +1 | 366-12.el9_6 | ELSA-2025-14075 |
Advisories 10
- ALSA-2025:14075 Moderate: xterm security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2025:14075 Red Hat Security Advisory: xterm security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- DLA-2913-1 xterm - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2022:3952-1 Security update for xterm SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12733-1 mlterm-3.9.2-3.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- RLSA-2025:14075 Moderate: xterm security update Rocky Linux Security Advisories · Oct 7, 2025
- WID-SEC-2022-1335 Xerox FreeFlow Print Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 6, 2025
- WID-SEC-2022-1030 xterm: Schwachstelle ermöglicht nicht spezifizierten Angriff BSI CERT-Bund (WID) · Aug 19, 2025
- ELSA-2025-14075 Moderate: xterm security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Aug 19, 2025
- SUSE-SU-2022:3953-1 Security update for xterm SUSE / openSUSE Security Updates · May 2, 2025
References
- https://twitter.com/nickblack/status/1487731459398025216
- https://www.openwall.com/lists/oss-security/2022/01/30/2
- https://www.openwall.com/lists/oss-security/2022/01/30/3
- https://invisible-island.net/xterm/xterm.log.html
- [debian-lts-announce] 20220207 [SECURITY] [DLA 2913-1] xterm security update mailing-list
- FEDORA-2022-965978ed67 vendor-advisory
- FEDORA-2022-9bf751cdf7 vendor-advisory
- GLSA-202208-22 vendor-advisory