CVE-2013-0249: Canonical Ubuntu Linux

High severity, CVSS 7.5. EPSS: 21.6% chance of exploitation in the next 30 days.

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.

Affected products

• Canonical Ubuntu Linux: version 12.10 only
• Haxx Curl: version 7.26.0 only; version 7.27.0 only; version 7.28.0 only; version 7.28.1 only
• Haxx Libcurl: version 7.26.0 only; version 7.27.0 only; version 7.28.0 only; version 7.28.1 only

Published 2013-03-08. Last modified 2026-06-16.