CVE-2015-1822

Publication date 16 April 2015

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

chrony before 1.31.1 does not initialize the last “next” pointer when saving unacknowledged replies to command requests, which allows remote authenticated users to cause a denial of service (uninitialized pointer dereference and daemon crash) or possibly execute arbitrary code via a large number of command requests.

From the Ubuntu Security Team

Miroslav Lichvár discovered that chrony does’t initialize the pointer properly. An attacker could use this vulnerability to cause a denial of service (crash) or execute arbitrary code.

Status

Package Ubuntu Release Status
chrony 18.10 cosmic
Not affected
18.04 LTS bionic
Not affected
17.10 artful
Not affected
17.04 zesty Ignored end of life
16.10 yakkety Ignored end of life
16.04 LTS xenial
Not affected
15.10 wily Ignored end of life
15.04 vivid Ignored end of life
14.10 utopic Ignored end of life
14.04 LTS trusty
Fixed 1.29-1ubuntu0.1
12.04 LTS precise Ignored end of life
10.04 LTS lucid Ignored end of life

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
chrony