# CVE-2016-5408: Memory corruption in n/a

> Remote attackers can execute arbitrary code via a stack-based buffer overflow in the Squid proxy server's cache manager CGI script.

- **Severity:** Critical 9.8 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 10 Aug 2016
- **Updated:** 6 Aug 2024
- **Also known as:** DLA-556-1, GHSA-5f9j-8ghm-9gxx, RHSA-2016:1573

## What is CVE-2016-5408?

CVE-2016-5408 is a critical memory corruption vulnerability in Oracle Linux, published on 10 Aug 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Stack-based buffer overflow in the munge_other_line function in cachemgr.cgi in the squid package before 3.1.23-16.el6_8.6 in Red Hat Enterprise Linux 6 allows remote attackers to execute arbitrary code via unspecified vectors.  NOTE: this vulnerability exists because of an incorrect fix for CVE-2016-4051.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2016-5408?

It affects 3 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `squid` | Red Hat:enterprise_linux:6::server | All versions | 7:3.1.23-16.el6_8.6 |
| `squid-debuginfo` | Red Hat:enterprise_linux:6::server | All versions | 7:3.1.23-16.el6_8.6 |
| `squid` | Red Hat:enterprise_linux:6::workstation | All versions | 7:3.1.23-16.el6_8.6 |
| `squid-debuginfo` | Red Hat:enterprise_linux:6::workstation | All versions | 7:3.1.23-16.el6_8.6 |

Products: Oracle Linux, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation.

## How do I fix CVE-2016-5408?

Apply the vendor's patch.

## Is CVE-2016-5408 being exploited?

There is no known exploitation of CVE-2016-5408 in the wild and no public exploit code.

## Other vulnerabilities in Oracle Linux

- [CVE-2015-5287](https://insights.sbomify.com/CVE-2015-5287/): Red Hat Automatic Bug Reporting Tool Privilege Escalation (high 7.8, exploited in the wild)
- [CVE-2016-1714](https://insights.sbomify.com/CVE-2016-1714/): Memory corruption in n/a (high 8.1)
- [CVE-2015-3812](https://insights.sbomify.com/CVE-2015-3812/): Denial of service in n/a (high 7.8)
- [CVE-2015-2328](https://insights.sbomify.com/CVE-2015-2328/): Denial of service in n/a (high 7.5)
- [CVE-2015-8385](https://insights.sbomify.com/CVE-2015-8385/): Memory corruption in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-5408 and fix it if it is affected.

What it is: CVE-2016-5408 is a critical memory corruption vulnerability in Oracle Linux, published on 10 Aug 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2016-5408 in the wild and no public exploit code.

Affected product: Oracle 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-2016-5408/ (Markdown: https://insights.sbomify.com/CVE-2016-5408/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-5408
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-5408
- OSV: https://osv.dev/vulnerability/CVE-2016-5408

---
From sbomify Insights: https://insights.sbomify.com/CVE-2016-5408/
Summaries are generated and may contain mistakes; the official description above is the record.