# CVE-2015-2716: Memory corruption in n/a

> Remote attackers can execute arbitrary code via a buffer overflow in the XML parser by providing large compressed XML data, requiring user interaction.

- **Severity:** High 7.5 (`AV:N/AC:L/Au:N/C:P/I:P/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:** 14 May 2015
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-3pwf-x7h5-r7pj, RHSA-2020:1011, RHSA-2020:2508, UBUNTU-CVE-2015-2716

## What is CVE-2015-2716?

CVE-2015-2716 is a high-severity memory corruption vulnerability in Mozilla Firefox, published on 14 May 2015. 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

Buffer overflow in the XML parser in Mozilla Firefox before 38.0, Firefox ESR 31.x before 31.7, and Thunderbird before 31.7 allows remote attackers to execute arbitrary code by providing a large amount of compressed XML data, a related issue to CVE-2015-1283.

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

## Which versions are affected by CVE-2015-2716?

It affects 8 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `expat` | Red Hat:enterprise_linux:7::client | All versions | 0:2.1.0-11.el7 |
| `expat-debuginfo` | Red Hat:enterprise_linux:7::client | All versions | 0:2.1.0-11.el7 |
| `expat-devel` | Red Hat:enterprise_linux:7::client | All versions | 0:2.1.0-11.el7 |
| `expat-static` | Red Hat:enterprise_linux:7::client | All versions | 0:2.1.0-11.el7 |
| `expat` | Red Hat:enterprise_linux:7::computenode | All versions | 0:2.1.0-11.el7 |
| `expat-debuginfo` | Red Hat:enterprise_linux:7::computenode | All versions | 0:2.1.0-11.el7 |
| `expat-devel` | Red Hat:enterprise_linux:7::computenode | All versions | 0:2.1.0-11.el7 |
| `expat-static` | Red Hat:enterprise_linux:7::computenode | All versions | 0:2.1.0-11.el7 |
| `expat` | Red Hat:enterprise_linux:7::server | All versions | 0:2.1.0-11.el7 |
| `expat-debuginfo` | Red Hat:enterprise_linux:7::server | All versions | 0:2.1.0-11.el7 |
| `expat-devel` | Red Hat:enterprise_linux:7::server | All versions | 0:2.1.0-11.el7 |
| `expat-static` | Red Hat:enterprise_linux:7::server | All versions | 0:2.1.0-11.el7 |
| `expat` | Red Hat:enterprise_linux:7::workstation | All versions | 0:2.1.0-11.el7 |
| `expat-debuginfo` | Red Hat:enterprise_linux:7::workstation | All versions | 0:2.1.0-11.el7 |
| `expat-devel` | Red Hat:enterprise_linux:7::workstation | All versions | 0:2.1.0-11.el7 |
| `expat-static` | Red Hat:enterprise_linux:7::workstation | All versions | 0:2.1.0-11.el7 |
| `expat` | Red Hat:rhel_eus:7.7::computenode | All versions | 0:2.1.0-11.el7_7 |
| `expat-debuginfo` | Red Hat:rhel_eus:7.7::computenode | All versions | 0:2.1.0-11.el7_7 |
| `expat-devel` | Red Hat:rhel_eus:7.7::computenode | All versions | 0:2.1.0-11.el7_7 |
| `expat-static` | Red Hat:rhel_eus:7.7::computenode | All versions | 0:2.1.0-11.el7_7 |
| `expat` | Red Hat:rhel_eus:7.7::server | All versions | 0:2.1.0-11.el7_7 |
| `expat-debuginfo` | Red Hat:rhel_eus:7.7::server | All versions | 0:2.1.0-11.el7_7 |
| `expat-devel` | Red Hat:rhel_eus:7.7::server | All versions | 0:2.1.0-11.el7_7 |
| `expat-static` | Red Hat:rhel_eus:7.7::server | All versions | 0:2.1.0-11.el7_7 |

Products: Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird, Novell Suse Linux Enterprise Desktop, Novell Suse Linux Enterprise Server, Novell Suse Linux Enterprise Software Development Kit, Opensuse Opensuse, Oracle Solaris.

## How do I fix CVE-2015-2716?

Upgrade to a fixed version.

## Is CVE-2015-2716 being exploited?

There is no known exploitation of CVE-2015-2716 in the wild and no public exploit code.

## Other vulnerabilities in Mozilla Firefox

- [CVE-2019-11708](https://insights.sbomify.com/CVE-2019-11708/): Mozilla Firefox and Thunderbird Sandbox Escape (critical 10.0, exploited in the wild)
- [CVE-2010-3765](https://insights.sbomify.com/CVE-2010-3765/): Mozilla Multiple Products Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2022-26486](https://insights.sbomify.com/CVE-2022-26486/): Mozilla Firefox Use-After-Free (critical 9.6, exploited in the wild)
- [CVE-2022-26485](https://insights.sbomify.com/CVE-2022-26485/): Mozilla Firefox Use-After-Free (high 8.8, exploited in the wild)
- [CVE-2019-11707](https://insights.sbomify.com/CVE-2019-11707/): Mozilla Firefox and Thunderbird Type Confusion (high 8.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2015-2716 and fix it if it is affected.

What it is: CVE-2015-2716 is a high-severity memory corruption vulnerability in Mozilla Firefox, published on 14 May 2015. 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-2015-2716 in the wild and no public exploit code.

Affected product: Mozilla Firefox. 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-2015-2716/ (Markdown: https://insights.sbomify.com/CVE-2015-2716/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2015-2716
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2015-2716
- OSV: https://osv.dev/vulnerability/CVE-2015-2716

---
From sbomify Insights: https://insights.sbomify.com/CVE-2015-2716/
Summaries are generated and may contain mistakes; the official description above is the record.
