1. Ubuntu Security Notices
  2. USN-4616-2

USN-4616-2: AccountsService vulnerabilities

Publication date

4 November 2020

Overview

Several security issues were fixed in AccountsService.

Releases

Packages

Details

USN-4616-1 fixed several vulnerabilities in AccountsService. This update provides
the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

Kevin Backhouse discovered that AccountsService incorrectly dropped
privileges. A local user could possibly use this issue to cause
AccountsService to crash or hang, resulting in a denial of service.
(CVE-2020-16126)

Matthias Gerstner discovered that AccountsService incorrectly handled
certain path checks. A local attacker could possibly use this issue to
read arbitrary files. (CVE-2018-14036)

USN-4616-1 fixed several vulnerabilities in AccountsService. This update provides
the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

Kevin Backhouse discovered that AccountsService incorrectly dropped
privileges. A local user could possibly use this issue to cause
AccountsService to crash or hang, resulting in a denial of service.
(CVE-2020-16126)

Matthias Gerstner discovered that AccountsService incorrectly handled
certain path checks. A local attacker could possibly use this issue to
read arbitrary files. (CVE-2018-14036)

Update instructions

After a standard system update you need to reboot your computer to make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
14.04 trusty libaccountsservice0 –  0.6.35-0ubuntu7.3+esm2
accountsservice –  0.6.35-0ubuntu7.3+esm2

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References

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