# CVE-2021-3410: caca-utils: A flaw was found in libcaca v0.99.beta19

CVE-2021-3410 is fixed in 2 products on 1 platform, first by caca-utils 0.99.beta19-2ubuntu0.18.04.2, released February 23, 2021. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2021-3410
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0056
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 23, 2021

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | caca-utils Ubuntu 18.04.6 LTS (bionic) | 0.99.beta19-2ubuntu0.18.04.2 | [caca-utils 0.99.beta19-2ubuntu0.18.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-caca-utils-0.99.beta19-2ubuntu0.18.04.2.md) | Feb 23, 2021 |
| Linux | caca-utils Ubuntu 20.04 LTS (focal) | 0.99.beta19-2.1ubuntu1.20.04.1 | [caca-utils 0.99.beta19-2.1ubuntu1.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-caca-utils-0.99.beta19-2.1ubuntu1.20.04.1.md) | Feb 23, 2021 |
| Linux | libcaca0 Ubuntu 18.04.6 LTS (bionic) | 0.99.beta19-2ubuntu0.18.04.2 | [libcaca0 0.99.beta19-2ubuntu0.18.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libcaca0-0.99.beta19-2ubuntu0.18.04.2.md) | Feb 23, 2021 |
| Linux | libcaca0 Ubuntu 20.04 LTS (focal) | 0.99.beta19-2.1ubuntu1.20.04.1 | [libcaca0 0.99.beta19-2.1ubuntu1.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libcaca0-0.99.beta19-2.1ubuntu1.20.04.1.md) | Feb 23, 2021 |

---

Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.