# CVE-2011-3182: Null dereference in n/a

> Attackers can cause denial of service or potential code execution in PHP applications by triggering unchecked memory allocation failures in various core extensions.

- **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:** Not needed
- **Fix available:** Yes
- **Published:** 25 Aug 2011
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-778p-3h84-7r8x

## What is CVE-2011-3182?

CVE-2011-3182 is a medium-severity vulnerability in Php Php, published on 25 Aug 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

PHP before 5.3.7 does not properly check the return values of the malloc, calloc, and realloc library functions, which allows context-dependent attackers to cause a denial of service (NULL pointer dereference and application crash) or trigger a buffer overflow by leveraging the ability to provide an arbitrary value for a function argument, related to (1) ext/curl/interface.c, (2) ext/date/lib/parse_date.c, (3) ext/date/lib/parse_iso_intervals.c, (4) ext/date/lib/parse_tz.c, (5) ext/date/lib/timelib.c, (6) ext/pdo_odbc/pdo_odbc.c, (7) ext/reflection/php_reflection.c, (8) ext/soap/php_sdl.c, (9) ext/xmlrpc/libxmlrpc/base64.c, (10) TSRM/tsrm_win32.c, and (11) the strtotime function.

## Which versions are affected by CVE-2011-3182?

It affects 1 product.


Products: Php Php.

## How do I fix CVE-2011-3182?

Upgrade to a fixed version.

## Is CVE-2011-3182 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2011-3182 exists.

Public exploit code:

- PHP < 5.3.7 - Multiple Null Pointer Dereference Denial of Service Vulnerabilities (exploitdb)

## Other vulnerabilities in Php Php

- [CVE-2012-2688](https://insights.sbomify.com/CVE-2012-2688/): Integer overflow in n/a (critical 10.0)
- [CVE-2012-2376](https://insights.sbomify.com/CVE-2012-2376/): Memory corruption in n/a (critical 10.0)
- [CVE-2011-3268](https://insights.sbomify.com/CVE-2011-3268/): Memory corruption in n/a (critical 10.0)
- [CVE-2009-4143](https://insights.sbomify.com/CVE-2009-4143/): Other in n/a (critical 10.0)
- [CVE-2008-5557](https://insights.sbomify.com/CVE-2008-5557/): Memory corruption in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2011-3182 and fix it if it is affected.

What it is: CVE-2011-3182 is a medium-severity vulnerability in Php Php, published on 25 Aug 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2011-3182 exists.

Affected product: Php Php. 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-2011-3182/ (Markdown: https://insights.sbomify.com/CVE-2011-3182/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2011-3182
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2011-3182
- OSV: https://osv.dev/vulnerability/CVE-2011-3182

---
From sbomify Insights: https://insights.sbomify.com/CVE-2011-3182/
Summaries are generated and may contain mistakes; the official description above is the record.