Description
A flaw was found in libcaca v0.99.beta19. A buffer overflow issue in caca_resize function in libcaca/caca/canvas.c may lead to local execution of arbitrary code in the user context.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | libcaca | libcaca v0.99.beta19 | — |
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 | libcaca | 0.99.beta19-2.2 | — |
| Debian 13 | libcaca | 0.99.beta19-2.2 | — |
| Debian 12 | libcaca | 0.99.beta19-2.2 | — |
| Debian 9 | libcaca | 0.99.beta19-2.1~deb9u2 | DLA-2584-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | libcaca | 0.99.beta19-2.1ubuntu1.20.04.1 | USN-4921-1 |
| Ubuntu 18.04 LTS | libcaca | 0.99.beta19-2ubuntu0.18.04.2 | USN-4921-1 |
| Ubuntu 16.04 LTS | libcaca | 0.99.beta19-2ubuntu0.16.04.2 | USN-4921-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 14.04 LTS | libcaca | 0.99.beta18-1ubuntu5.1+esm1 | USN-4921-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | libcaca | 0.99.beta19.git20171003-150200.11.9.1 | SUSE-SU-2022:3400-1 |
| SLES 15 SP3 | libcaca | 0.99.beta19.git20171003-150200.11.9.1 | SUSE-SU-2022:3400-1 |
| SLES 15 SP1 | libcaca | 0.99.beta19.git20171003-3.8.1 | SUSE-SU-2022:0754-1 |
| SLES 15 | libcaca | 0.99.beta19.git20171003-3.8.1 | SUSE-SU-2022:0754-1 |
| SLES 12 SP5 | libcaca | 0.99.beta18-14.12.1 | SUSE-SU-2022:3428-1 |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP1 | libcaca | 0.99.beta19.git20171003-3.8.1 | SUSE-SU-2022:0754-1 |
| SLES for SAP 15 | libcaca | 0.99.beta19.git20171003-3.8.1 | SUSE-SU-2022:0754-1 |
| SLES for SAP 12 SP5 | libcaca | 0.99.beta18-14.12.1 | SUSE-SU-2022:3428-1 |
| SLE HPC 15 SP1 | libcaca | 0.99.beta19.git20171003-3.8.1 | SUSE-SU-2022:0754-1 |
| SLE HPC 15 | libcaca | 0.99.beta19.git20171003-3.8.1 | SUSE-SU-2022:0754-1 |
| SUSE Enterprise Storage 6 | libcaca | 0.99.beta19.git20171003-3.8.1 | SUSE-SU-2022:0754-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | libcaca | 0.99.beta19.git20171003-8.3 | openSUSE-SU-2024:10927-1 |
| openSUSE Leap 15.4 | libcaca | 0.99.beta19.git20171003-150200.11.9.1 | SUSE-SU-2022:3400-1 |
| openSUSE Leap 15.3 | libcaca | 0.99.beta19.git20171003-150200.11.9.1 | SUSE-SU-2022:3400-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | libcaca | 0.99_beta20-r0 | — |
| Alpine v3.23 | libcaca | 0.99_beta20-r0 | — |
| Alpine v3.22 | libcaca | 0.99_beta20-r0 | — |
| Alpine v3.21 | libcaca | 0.99_beta20-r0 | — |
| Alpine v3.20 | libcaca | 0.99_beta20-r0 | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | libcaca | 0.99_beta20-r0 | — |
| Alpine v3.18 | libcaca | 0.99_beta20-r0 | — |
| Alpine v3.17 | libcaca | 0.99_beta20-r0 | — |
| Alpine v3.16 | libcaca | 0.99_beta20-r0 | — |
| Alpine v3.15 | libcaca | 0.99_beta20-r0 | — |
Advisories 6
- USN-4921-1 libcaca vulnerability Ubuntu Security Notices (USN) · Jun 29, 2026
- DLA-2584-1 libcaca - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10927-1 caca-utils-0.99.beta19.git20171003-8.3 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:3428-1 Security update for libcaca SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:3400-1 Security update for libcaca SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0754-1 Security update for libcaca SUSE / openSUSE Security Updates · May 2, 2025
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1928437
- https://github.com/cacalabs/libcaca/issues/52
- [debian-lts-announce] 20210307 [SECURITY] [DLA 2584-1] libcaca security update mailing-list
- FEDORA-2022-fc6b53e7a2 vendor-advisory
- FEDORA-2022-e3b9986722 vendor-advisory
- FEDORA-2022-3d291845d8 vendor-advisory