# CVE-2015-0273: Use after free in n/a

> Remote attackers can execute arbitrary code via crafted serialized input in PHP's date extension due to use-after-free vulnerabilities.

- **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:** Not needed
- **Fix available:** Yes
- **Published:** 30 Mar 2015
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-mj23-h3wj-525j, UBUNTU-CVE-2015-0273

## What is CVE-2015-0273?

CVE-2015-0273 is a high-severity use after free vulnerability in Php Php, published on 30 Mar 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Multiple use-after-free vulnerabilities in ext/date/php_date.c in PHP before 5.4.38, 5.5.x before 5.5.22, and 5.6.x before 5.6.6 allow remote attackers to execute arbitrary code via crafted serialized input containing a (1) R or (2) r type specifier in (a) DateTimeZone data handled by the php_date_timezone_initialize_from_hash function or (b) DateTime data handled by the php_date_initialize_from_hash function.

## Which versions are affected by CVE-2015-0273?

It affects 1 product.


Products: Php Php.

## How do I fix CVE-2015-0273?

Upgrade to a fixed version.

## Is CVE-2015-0273 being exploited?

There is no known exploitation of CVE-2015-0273 in the wild and no public exploit code.

Public exploit code:

- PHP DateTime - Use-After-Free (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-2015-0273 and fix it if it is affected.

What it is: CVE-2015-0273 is a high-severity use after free vulnerability in Php Php, published on 30 Mar 2015. 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-2015-0273 in the wild and no public exploit code.

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-2015-0273/ (Markdown: https://insights.sbomify.com/CVE-2015-0273/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2015-0273
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2015-0273
- OSV: https://osv.dev/vulnerability/CVE-2015-0273

---
From sbomify Insights: https://insights.sbomify.com/CVE-2015-0273/
Summaries are generated and may contain mistakes; the official description above is the record.