# CVE-2012-2837: Denial of service in n/a

> Remote attackers can cause a denial of service via crafted EXIF tags in images processed by the libexif library.

- **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:N/I:N/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 13 Jul 2012
- **Updated:** 6 Aug 2024
- **Also known as:** ALPINE-CVE-2012-2837, DEBIAN-CVE-2012-2837, GHSA-365p-hvj9-f68w

## What is CVE-2012-2837?

CVE-2012-2837 is a medium-severity denial of service vulnerability in n/a, published on 13 Jul 2012. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

The mnote_olympus_entry_get_value function in olympus/mnote-olympus-entry.c in the EXIF Tag Parsing Library (aka libexif) before 0.6.21 allows remote attackers to cause a denial of service (divide-by-zero error) via an image with crafted EXIF tags that are not properly handled during the formatting of EXIF maker note tags.

Weakness: CWE-189

## Which versions are affected by CVE-2012-2837?

It affects 1 product.


Products: Libexif Project Libexif.

## How do I fix CVE-2012-2837?

Upgrade to a fixed version.

## Is CVE-2012-2837 being exploited?

There is no known exploitation of CVE-2012-2837 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2017-7544](https://insights.sbomify.com/CVE-2017-7544/): Information disclosure in libexif (critical 9.1)
- [CVE-2018-20030](https://insights.sbomify.com/CVE-2018-20030/): Denial of service in libexif (high 7.5)
- [CVE-2012-2814](https://insights.sbomify.com/CVE-2012-2814/): Memory corruption in n/a (high 7.5)
- [CVE-2012-2840](https://insights.sbomify.com/CVE-2012-2840/): Integer overflow in n/a (high 7.5)
- [CVE-2012-2841](https://insights.sbomify.com/CVE-2012-2841/): Integer overflow in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2012-2837 and fix it if it is affected.

What it is: CVE-2012-2837 is a medium-severity denial of service vulnerability in n/a, published on 13 Jul 2012. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2012-2837 in the wild and no public exploit code.

Affected product: n/a. 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/CVE-2012-2837/ (Markdown: https://insights.sbomify.com/CVE-2012-2837/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2012-2837
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2012-2837
- OSV: https://osv.dev/vulnerability/CVE-2012-2837

---
From sbomify Insights: https://insights.sbomify.com/CVE-2012-2837/
Summaries are generated and may contain mistakes; the official description above is the record.