CVE-2002-2253

Severity: critical (CVSS 10.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 6.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2002-12-31 · updated 2026-06-16
Weakness: CWE-119

Description

Multiple buffer overflows in Cyrus Sieve / libSieve 2.1.2 and earlier allow remote attackers to execute arbitrary code via (1) a long header name, (2) a long IMAP flag, or (3) a script that generates a large number of errors that overflow the resulting error string.

Affected products

Cyrus Libsieve: through 2.1.2

References

http://archives.neohapsis.com/archives/bugtraq/2002-12/0019.html
http://www.securityfocus.com/bid/6294
http://www.securityfocus.com/bid/6299
http://www.securityfocus.com/bid/6300
https://exchange.xforce.ibmcloud.com/vulnerabilities/10743
https://exchange.xforce.ibmcloud.com/vulnerabilities/10779
https://exchange.xforce.ibmcloud.com/vulnerabilities/10780
http://archives.neohapsis.com/archives/bugtraq/2002-12/0019.html
http://www.securityfocus.com/bid/6294
http://www.securityfocus.com/bid/6299
http://www.securityfocus.com/bid/6300
https://exchange.xforce.ibmcloud.com/vulnerabilities/10743

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