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Servers and applications

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.

Severity
High 7.5
Published
8 Mar 2013
Last changed
16 Jun 2026
Added to UpHeron
21 Oct 2026
Exploit chance
22% in the next 30 daysHigher than 97% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Memory buffer errors (CWE-119)
Attack
Over the network · No login needed
Attacker can
Read some data · Change some data · Slow it down
CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Sources
NVD

Affected software

SoftwareAffected versions
curlServers and applications · cpe:a:haxx:curl
  • Version 7.26.0
  • Version 7.27.0
  • Version 7.28.0
  • Version 7.28.1
curlServers and applications · cpe:a:haxx:libcurl
  • Version 7.26.0
  • Version 7.27.0
  • Version 7.28.0
  • Version 7.28.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2013-0249
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2013-0249