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Vulnerability record · CVE-2005-0022 · published 2 May 2005

CVE-2005-0022: University of cambridge exim vulnerability

University Of Cambridge · Exim

Buffer overflow in the spa_base64_to_bits function in Exim before 4.43, as originally obtained from Samba code, and as called by the auth_spa_client function, may allow attackers to execute arbitrary code during SPA authentication.

4.6 CVSS 2.0 Medium EPSS 0.72% · top 47.9%
4.6CVSS 2.0 base score
0.72%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
16References
16 Jun 2026Last modified by NVD

Description

Buffer overflow in the spa_base64_to_bits function in Exim before 4.43, as originally obtained from Samba code, and as called by the auth_spa_client function, may allow attackers to execute arbitrary code during SPA authentication.

AV:L/AC:L/Au:N/C:P/I:P/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://ftp6.us.freebsd.org/pub/mail/exim/ChangeLogs/ChangeLog-4.44
http://marc.info/?l=bugtraq&m=110824870908614&w=2
http://security.gentoo.org/glsa/glsa-200501-23.xml Vendor Advisory
http://www.exim.org/mail-archives/exim-users/Week-of-Mon-20050103/msg00028.html Patch
http://www.idefense.com/application/poi/display?id=178&type=vulnerabilities
http://www.redhat.com/support/errata/RHSA-2005-025.html Patch
http://www.securityfocus.com/bid/12188
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11293
http://ftp6.us.freebsd.org/pub/mail/exim/ChangeLogs/ChangeLog-4.44
http://marc.info/?l=bugtraq&m=110824870908614&w=2
http://security.gentoo.org/glsa/glsa-200501-23.xml Vendor Advisory
http://www.exim.org/mail-archives/exim-users/Week-of-Mon-20050103/msg00028.html Patch
http://www.idefense.com/application/poi/display?id=178&type=vulnerabilities
http://www.redhat.com/support/errata/RHSA-2005-025.html Patch
http://www.securityfocus.com/bid/12188
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11293

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.5CVE-2004-0399University of cambridge exim vulnerabilityStack-based buffer overflow in Exim 3.35, and other versions before 4, when the sender_verify option is true, allows remote attackers to cause a deni…EPSS 21%7.5CVE-2004-0400University of cambridge exim vulnerabilityStack-based buffer overflow in Exim 4 before 4.33, when the headers_check_syntax option is enabled, allows remote attackers to cause a denial of serv…EPSS 7.0%7.5CVE-2003-0743University of cambridge exim vulnerabilityHeap-based buffer overflow in smtp_in.c for Exim 3 (exim3) before 3.36 and Exim 4 (exim4) before 4.21 may allow remote attackers to execute arbitrary…EPSS 5.7%7.5CVE-2001-0889University of cambridge exim vulnerabilityExim 3.22 and earlier, in some configurations, does not properly verify the local part of an address when redirecting the address to a pipe, which co…EPSS 6.4%7.5CVE-2001-0690University of cambridge exim vulnerabilityFormat string vulnerability in exim (3.22-10 in Red Hat, 3.12 in Debian and 3.16 in Conectiva) in batched SMTP mode allows a remote attacker to execu…EPSS 12%7.2CVE-2005-0021University of cambridge exim vulnerabilityMultiple buffer overflows in Exim before 4.43 may allow attackers to execute arbitrary code via (1) an IPv6 address with more than 8 components, as d…EPSS 2.6%7.2CVE-2002-1381University of cambridge exim vulnerabilityFormat string vulnerability in daemon.c for Exim 4.x through 4.10, and 3.x through 3.36, allows exim administrative users to execute arbitrary code b…EPSS 2.3%7.2CVE-1999-0971University of cambridge exim vulnerabilityBuffer overflow in Exim allows local users to gain root privileges via a long :include: option in a .forward file.EPSS 0.69%

Source: NIST National Vulnerability Database (record CVE-2005-0022), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.