ALBA-2022:1559 cloud-init bug fix and enhancement update

Not scored Published

A bug in cloud-init causes invalid IPv6 route configurations, potentially disrupting network connectivity on cloud instances.

Exploited in the wild
Not known
Login needed
Not stated
Attackable
Not stated
Victim action needed
Not stated
Fix
Available

What is ALBA-2022:1559?

ALBA-2022:1559 is a vulnerability in cloud-init, published on 26 Apr 2022.

Official description

The cloud-init packages provide a set of init scripts for cloud instances. Cloud instances need special scripts to run during initialization to retrieve and install SSH keys, and to let the user run various scripts.

Bug Fix(es) and Enhancement(s):

  • cloud-init writes route6-$DEVICE config with a HEX netmask. ip route does not like : Error: inet6 prefix is expected rather than "fd00:fd00:fd00::/ffff:ffff:ffff:ffff::". (BZ#2060026)

Which versions are affected by ALBA-2022:1559?

Linux distribution packages (1)
cloud-init AlmaLinux:8All versions21.1-7.el8_5.5.alma

How do I fix ALBA-2022:1559?

Apply the vendor's patch.

Is ALBA-2022:1559 being exploited?

There is no known exploitation of ALBA-2022:1559 in the wild and no public exploit code.

Sources

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