QID 174719

Date Published: 2021-04-19

QID 174719: SUSE Enterprise Linux Security update for dovecot23 (SUSE-SU-2021:0028-1)



This update for dovecot23 fixes the following issues:

Security issues fixed:

- CVE-2020-12100: Fixed a resource exhaustion caused by deeply nested MIME
parts (bsc#1174920).
- CVE-2020-12673: Fixed an improper implementation of NTLM that did not
check the message buffer size (bsc#1174922).
- CVE-2020-12674: Fixed an improper implementation of the RPA mechanism
(bsc#1174923).
- CVE-2020-24386: Fixed an issue with IMAP hibernation that allowed users
to access other users' emails (bsc#1180405).
- CVE-2020-25275: Fixed a crash when the 10000th MIME part was
message/rfc822 (bsc#1180406).

Non-security issues fixed:

- Pigeonhole was updated to version 0.5.11.
- Dovecot was updated to version 2.3.11.3.


Successful exploitation allows attacker to compromise the system.

  • CVSS V3 rated as High - 7.5 severity.
  • CVSS V2 rated as Medium - 4.9 severity.
    • Solution
    Upgrade to the latest package which contains the patch. To install this SUSE Security Update use YaST online_update. Alternatively you can run the command listed for your product. To install packages using the command line interface, use command "yum update". Refer to Suse security advisory: https://lists.suse.com/pipermail/sle-security-updates/2021-January/008152.html to address this issue and obtain further details.
    Vendor References

    CVEs related to QID 174719

    CVE-2020-12673 | CVE-2020-25275 | CVE-2020-12100 | CVE-2020-24386 | CVE-2020-12674 |
    Software Advisories
    Advisory ID Software Component Link
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