---
title: "CVE-2013-2174\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2013-2174?format=md
keywords: index, follow
---

# CVE-2013-2174

Publication date 24 June 2013

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

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## Description

Heap-based buffer overflow in the curl\_easy\_unescape function in
lib/escape.c in cURL and libcurl 7.7 through 7.30.0 allows remote attackers
to cause a denial of service (application crash) or possibly execute
arbitrary code via a crafted string ending in a "%" (percent) character.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| curl | 13.04 raring | Fixed 7.29.0-1ubuntu3.1 |
| 12.10 quantal | Fixed 7.27.0-1ubuntu1.3 |
| 12.04 LTS precise | Fixed 7.22.0-3ubuntu4.2 |
| 10.04 LTS lucid | Fixed 7.19.7-1ubuntu1.3 |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)
* [Patch details](https://ubuntu.com/security/CVE-2013-2174?format=md#patch-details)

### Patch details

For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)

| Package | Patch details |
| --- | --- |
| curl | * Upstream:   <http://curl.haxx.se/libcurl-unescape.patch> * Upstream:   [192c4f7](https://github.com/bagder/curl/commit/192c4f788d48f82c03e9cef40013f34370e90737) * Upstream:   [0de7249](https://github.com/bagder/curl/commit/0de7249bb39a2738a277c438b2bb1252ab8243cd) * Upstream:   [6fab0bd](https://github.com/bagder/curl/commit/6fab0bd9f163430254259f6b7d5c75b5452257d3) |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2174)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2013-2174)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2013-2174)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2013-2174)

### Related Ubuntu Security Notices (USN)

+ [USN-1894-1](https://usn.ubuntu.com/USN-1894-1)
+ curl vulnerability
+ 2 July 2013

### Other references

* <http://curl.haxx.se/docs/adv_20130622.html>
* <https://www.cve.org/CVERecord?id=CVE-2013-2174>