medium
6.8
CWE
119
Advisory Published
Updated

CVE-2013-2174: Buffer Overflow

First published: Wed Jul 31 2013(Updated: )

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.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
haxx curl=7.7
haxx curl=7.7.1
haxx curl=7.7.2
haxx curl=7.7.3
haxx curl=7.8
haxx curl=7.8.1
haxx curl=7.9
haxx curl=7.9.1
haxx curl=7.9.2
haxx curl=7.9.3
haxx curl=7.9.4
haxx curl=7.9.5
haxx curl=7.9.6
haxx curl=7.9.7
haxx curl=7.9.8
haxx curl=7.10
haxx curl=7.10.1
haxx curl=7.10.2
haxx curl=7.10.3
haxx curl=7.10.4
haxx curl=7.10.5
haxx curl=7.10.6
haxx curl=7.10.7
haxx curl=7.10.8
haxx curl=7.11.0
haxx curl=7.11.1
haxx curl=7.11.2
haxx curl=7.12.0
haxx curl=7.12.1
haxx curl=7.12.2
haxx curl=7.12.3
haxx curl=7.13.0
haxx curl=7.13.1
haxx curl=7.13.2
haxx curl=7.14.0
haxx curl=7.14.1
haxx curl=7.15.0
haxx curl=7.15.1
haxx curl=7.15.2
haxx curl=7.15.3
haxx curl=7.15.4
haxx curl=7.15.5
haxx curl=7.16.0
haxx curl=7.16.1
haxx curl=7.16.2
haxx curl=7.16.3
haxx curl=7.16.4
haxx curl=7.17.0
haxx curl=7.17.1
haxx curl=7.18.0
haxx curl=7.18.1
haxx curl=7.18.2
haxx curl=7.19.0
haxx curl=7.19.1
haxx curl=7.19.2
haxx curl=7.19.3
haxx curl=7.19.4
haxx curl=7.19.5
haxx curl=7.19.6
haxx curl=7.19.7
haxx curl=7.20.0
haxx curl=7.20.1
haxx curl=7.21.0
haxx curl=7.21.1
haxx curl=7.21.2
haxx curl=7.21.3
haxx curl=7.21.4
haxx curl=7.21.5
haxx curl=7.21.6
haxx curl=7.21.7
haxx curl=7.22.0
haxx curl=7.23.0
haxx curl=7.23.1
haxx curl=7.24.0
haxx curl=7.25.0
haxx curl=7.26.0
haxx curl=7.27.0
haxx curl=7.28.0
haxx curl=7.28.1
haxx curl=7.29.0
haxx curl=7.30.0
haxx libcurl=7.7
haxx libcurl=7.7.1
haxx libcurl=7.7.2
haxx libcurl=7.7.3
haxx libcurl=7.8
haxx libcurl=7.8.1
haxx libcurl=7.9
haxx libcurl=7.9.1
haxx libcurl=7.9.2
haxx libcurl=7.9.3
haxx libcurl=7.9.4
haxx libcurl=7.9.5
haxx libcurl=7.9.6
haxx libcurl=7.9.7
haxx libcurl=7.9.8
haxx libcurl=7.10
haxx libcurl=7.10.1
haxx libcurl=7.10.2
haxx libcurl=7.10.3
haxx libcurl=7.10.4
haxx libcurl=7.10.5
haxx libcurl=7.10.6
haxx libcurl=7.10.7
haxx libcurl=7.10.8
haxx libcurl=7.11.0
haxx libcurl=7.11.1
haxx libcurl=7.11.2
haxx libcurl=7.12.0
haxx libcurl=7.12.1
haxx libcurl=7.12.2
haxx libcurl=7.12.3
haxx libcurl=7.13.0
haxx libcurl=7.13.1
haxx libcurl=7.13.2
haxx libcurl=7.14.0
haxx libcurl=7.14.1
haxx libcurl=7.15.0
haxx libcurl=7.15.1
haxx libcurl=7.15.2
haxx libcurl=7.15.3
haxx libcurl=7.15.4
haxx libcurl=7.15.5
haxx libcurl=7.16.0
haxx libcurl=7.16.1
haxx libcurl=7.16.2
haxx libcurl=7.16.3
haxx libcurl=7.16.4
haxx libcurl=7.17.0
haxx libcurl=7.17.1
haxx libcurl=7.18.0
haxx libcurl=7.18.1
haxx libcurl=7.18.2
haxx libcurl=7.19.0
haxx libcurl=7.19.1
haxx libcurl=7.19.2
haxx libcurl=7.19.3
haxx libcurl=7.19.4
haxx libcurl=7.19.5
haxx libcurl=7.19.6
haxx libcurl=7.19.7
haxx libcurl=7.20.0
haxx libcurl=7.20.1
haxx libcurl=7.21.0
haxx libcurl=7.21.1
haxx libcurl=7.21.2
haxx libcurl=7.21.3
haxx libcurl=7.21.4
haxx libcurl=7.21.5
haxx libcurl=7.21.6
haxx libcurl=7.21.7
haxx libcurl=7.22.0
haxx libcurl=7.23.0
haxx libcurl=7.23.1
haxx libcurl=7.24.0
haxx libcurl=7.25.0
haxx libcurl=7.26.0
haxx libcurl=7.27.0
haxx libcurl=7.28.0
haxx libcurl=7.28.1
haxx libcurl=7.29.0
haxx libcurl=7.30.0
Ubuntu Linux=10.04
Ubuntu Linux=12.04
Ubuntu Linux=12.10
Ubuntu Linux=13.04
openSUSE=11.4
Red Hat Enterprise Linux=5
Red Hat Enterprise Linux=6.0

Remedy

https://github.com/bagder/curl/commit/192c4f788d48f82c03e9cef40013f34370e90737

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2013-2174?

    CVE-2013-2174 is rated as critical due to its potential for remote code execution and denial of service.

  • How do I fix CVE-2013-2174?

    To fix CVE-2013-2174, upgrade to a version of cURL or libcurl that is 7.31.0 or later.

  • What devices are affected by CVE-2013-2174?

    CVE-2013-2174 affects cURL and libcurl versions 7.7 through 7.30.0 across various operating systems.

  • What kind of attack is CVE-2013-2174 associated with?

    CVE-2013-2174 is associated with heap-based buffer overflow attacks that can lead to application crashes or arbitrary code execution.

  • Is my system vulnerable to CVE-2013-2174?

    If your system is running any version of cURL or libcurl from 7.7 to 7.30.0, it is vulnerable to CVE-2013-2174.

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