CVE-2013-0249: Buffer Overflow
First published: Fri Mar 08 2013(Updated: )
Stack-based buffer overflow in the Curl_sasl_create_digest_md5_message function in lib/curl_sasl.c in curl and libcurl 7.26.0 through 7.28.1, when negotiating SASL DIGEST-MD5 authentication, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long string in the realm parameter in a (1) POP3, (2) SMTP or (3) IMAP message.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Curl | =7.26.0 | |
| Curl | =7.27.0 | |
| Curl | =7.28.0 | |
| Curl | =7.28.1 | |
| libcurl | =7.26.0 | |
| libcurl | =7.27.0 | |
| libcurl | =7.28.0 | |
| libcurl | =7.28.1 | |
| Ubuntu | =12.10 |
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Reference Links
- http://blog.volema.com/curl-rce.html
- http://curl.haxx.se/docs/adv_20130206.html
- http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-February/099140.html
- http://nakedsecurity.sophos.com/2013/02/10/anatomy-of-a-vulnerability-curl-web-download-toolkit-holed-by-authentication-bug/
- http://packetstormsecurity.com/files/120147/cURL-Buffer-Overflow.html
- http://packetstormsecurity.com/files/120170/Slackware-Security-Advisory-curl-Updates.html
- http://www.exploit-db.com/exploits/24487
- http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
- http://www.osvdb.org/89988
- http://www.securityfocus.com/bid/57842
- http://www.securitytracker.com/id/1028093
- http://www.ubuntu.com/usn/USN-1721-1
Frequently Asked Questions
What is the severity of CVE-2013-0249?
CVE-2013-0249 is rated as high severity due to its potential to lead to a denial of service and arbitrary code execution.
How do I fix CVE-2013-0249?
To fix CVE-2013-0249, upgrade Curl or libcurl to versions 7.29.0 or later.
What versions of Curl are affected by CVE-2013-0249?
Curl versions 7.26.0 to 7.28.1 are affected by CVE-2013-0249.
Can CVE-2013-0249 be exploited remotely?
Yes, CVE-2013-0249 can be exploited remotely through crafted SASL DIGEST-MD5 authentication messages.
What impact does CVE-2013-0249 have on affected systems?
CVE-2013-0249 can cause a denial of service, potentially leading to crashes or the execution of arbitrary code on affected systems.
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- version/curl/7.26.0
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- version/ubuntu/12.10