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    CVE-2013-0249

    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.

    Published:Feb 6, 2013
    Last Modified:Apr 11, 2025
    EPS:Mar 8, 2013
    EPSS Score:0.38792
    CVSS Score:7.5

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Haxx
    Product
    Curl
    Vendor
    Haxx
    Product
    Libcurl

    Exploits

    http://www.exploit-db.com/exploits/24487http://www.exploit-db.com/exploits/24487https://www.exploit-db.com/exploits/24487

    Related CVEs

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    CVE-2026-13367 (CVSS 7.8) — IBM Informix Dynamic Server 14.10, and 15.0 contain a local privilege escalation vulnerability in the oninit s…
    CVE-2026-47337 (CVSS 3.3) — Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling …
    CVE-2026-47336 (CVSS 3.3) — Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/A…
    CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…
    CVE-2026-47334 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock…
    CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…
    CVE-2026-47332 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an intern…
    CVE-2026-47331 (CVSS 7.8) — Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An…
    CVE-2026-47330 (CVSS 3.3) — Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an u…

    References

    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
    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

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High