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SUSE: CVE-2017-2669: SUSE Linux Security Advisory

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SUSE: CVE-2017-2669: SUSE Linux Security Advisory

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
04/10/2017
Created
07/25/2018
Added
05/11/2017
Modified
08/21/2021

Description

Dovecot before version 2.2.29 is vulnerable to a denial of service. When 'dict' passdb and userdb were used for user authentication, the username sent by the IMAP/POP3 client was sent through var_expand() to perform %variable expansion. Sending specially crafted %variable fields could result in excessive memory usage causing the process to crash (and restart), or excessive CPU usage causing all authentications to hang.

Solution(s)

  • suse-upgrade-dovecot
  • suse-upgrade-dovecot22
  • suse-upgrade-dovecot22-backend-mysql
  • suse-upgrade-dovecot22-backend-pgsql
  • suse-upgrade-dovecot22-backend-sqlite
  • suse-upgrade-dovecot22-devel

References

  • SUSE-SU-2017:1250-1
  • DSA-3828
  • CVE-2017-2669
  • USN-3258-1
  • USN-3258-2

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