SB2020082706 - OpenSUSE Linux update for dovecot23

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Main Vulnerability Database SB2020082706

SB2020082706 - OpenSUSE Linux update for dovecot23

Published: August 27, 2020

Security Bulletin ID SB2020082706
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Out-of-bounds read (CVE-ID: CVE-2020-12673)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition when processing NTLM requests. A remote attacker can send a specially formatted NTLM reques, trigger out-of-bounds read error and crash the auth service.


2) Input validation error (CVE-ID: CVE-2020-12674)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in RPA requests. A remote attacker can send a specially formatted 0-lenght RPA request and crash the auth service.


Remediation

Install update from vendor's website.

References