# openSUSE-SU-2021:1249-1: Security update for gifsicle

> An attacker can cause a crash or potentially execute code by providing a malicious GIF file to gifsicle during resize operations.

- **Severity:** Not scored
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 13 Sep 2021

## What is openSUSE-SU-2021:1249-1?

openSUSE-SU-2021:1249-1 is a memory corruption vulnerability in gifsicle, published on 13 Sep 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

This update for gifsicle fixes the following issues:

Update to version 1.93:

* Fix security bug on certain resize operations with `--resize-method=box`
* Fix problems with colormapless GIFs.

Update to version 1.92

* Add `--lossy` option from Kornel Lipiński.
* Remove an assertion failure possible with
  `--conserve-memory` + `--colors` + `--careful`.

## Which versions are affected by openSUSE-SU-2021:1249-1?


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `gifsicle` | SUSE:Package Hub 15 SP1 | All versions | 1.93-bp153.2.3.1 |
| `gifsicle` | SUSE:Package Hub 15 SP2 | All versions | 1.93-bp153.2.3.1 |
| `gifsicle` | SUSE:Package Hub 15 SP3 | All versions | 1.93-bp153.2.3.1 |
| `gifsicle` | openSUSE:Leap 15.2 | All versions | 1.93-bp153.2.3.1 |
| `gifsicle` | openSUSE:Leap 15.3 | All versions | 1.93-bp153.2.3.1 |

## How do I fix openSUSE-SU-2021:1249-1?

Upgrade to a fixed version.

## Is openSUSE-SU-2021:1249-1 being exploited?

There is no known exploitation of openSUSE-SU-2021:1249-1 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for openSUSE-SU-2021:1249-1 and fix it if it is affected.

What it is: openSUSE-SU-2021:1249-1 is a memory corruption vulnerability in gifsicle, published on 13 Sep 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of openSUSE-SU-2021:1249-1 in the wild and no public exploit code.

Affected product: gifsicle. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/openSUSE-SU-2021-1249-1/ (Markdown: https://insights.sbomify.com/openSUSE-SU-2021-1249-1/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/openSUSE-SU-2021:1249-1

---
From sbomify Insights: https://insights.sbomify.com/openSUSE-SU-2021-1249-1/
Summaries are generated and may contain mistakes; the official description above is the record.