# CVE-2012-5612: Memory corruption in n/a

> Remote authenticated users can trigger a heap-based buffer overflow in MySQL, causing denial of service or arbitrary code execution.

- **Severity:** Medium 6.5 (`AV:N/AC:L/Au:S/C:P/I:P/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 3 Dec 2012
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-j274-98hw-37wv

## What is CVE-2012-5612?

CVE-2012-5612 is a medium-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 3 Dec 2012. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Heap-based buffer overflow in Oracle MySQL 5.5.19 and other versions through 5.5.28, and MariaDB 5.5.28a and possibly other versions, allows remote authenticated users to cause a denial of service (memory corruption and crash) and possibly execute arbitrary code, as demonstrated using certain variations of the (1) USE, (2) SHOW TABLES, (3) DESCRIBE, (4) SHOW FIELDS FROM, (5) SHOW COLUMNS FROM, (6) SHOW INDEX FROM, (7) CREATE TABLE, (8) DROP TABLE, (9) ALTER TABLE, (10) DELETE FROM, (11) UPDATE, and (12) SET PASSWORD commands.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2012-5612?

It affects 6 products.


Products: Canonical Ubuntu Linux, Mariadb Mariadb, Oracle Mysql, Suse Linux Enterprise Desktop, Suse Linux Enterprise Server, Suse Linux Enterprise Software Development Kit.

## How do I fix CVE-2012-5612?

Upgrade to a fixed version.

## Is CVE-2012-5612 being exploited?

There is no known exploitation of CVE-2012-5612 in the wild and no public exploit code.

Public exploit code:

- MySQL (Linux) - Heap Overrun (PoC) (exploitdb)

## Other vulnerabilities in Canonical Ubuntu Linux

- [CVE-2020-11651](https://insights.sbomify.com/CVE-2020-11651/): SaltStack Salt Authentication Bypass (critical 9.8, exploited in the wild)
- [CVE-2020-7247](https://insights.sbomify.com/CVE-2020-7247/): OpenSMTPD Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2019-16928](https://insights.sbomify.com/CVE-2019-16928/): Exim Out-of-bounds Write (critical 9.8, exploited in the wild)
- [CVE-2018-6789](https://insights.sbomify.com/CVE-2018-6789/): Exim Buffer Overflow (critical 9.8, exploited in the wild)
- [CVE-2015-2590](https://insights.sbomify.com/CVE-2015-2590/): Oracle Java SE and Java SE Embedded Remote Code Execution (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2012-5612 and fix it if it is affected.

What it is: CVE-2012-5612 is a medium-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 3 Dec 2012. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2012-5612 in the wild and no public exploit code.

Affected product: Canonical Ubuntu Linux. 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-2012-5612/ (Markdown: https://insights.sbomify.com/CVE-2012-5612/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2012-5612
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2012-5612
- OSV: https://osv.dev/vulnerability/CVE-2012-5612

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From sbomify Insights: https://insights.sbomify.com/CVE-2012-5612/
Summaries are generated and may contain mistakes; the official description above is the record.