USN-5093-1: Vim vulnerabilities

Releases

• Ubuntu 21.04
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

Packages

• vim - Vi IMproved - enhanced vi editor

Details

Brian Carpenter discovered that vim incorrectly handled memory
when opening certain files. If a user was tricked into opening
a specially crafted file, a remote attacker could crash the
application, leading to a denial of service, or possibly execute
arbitrary code with user privileges. This issue only affected
Ubuntu 20.04 LTS and Ubuntu 21.04. (CVE-2021-3770)

Brian Carpenter discovered that vim incorrectly handled memory
when opening certain files. If a user was tricked into opening
a specially crafted file, a remote attacker could crash the
application, leading to a denial of service, or possibly execute
arbitrary code with user privileges. (CVE-2021-3778)

Dhiraj Mishra discovered that vim incorrectly handled memory
when opening certain files. If a user was tricked into opening
a specially crafted file, a remote attacker could crash the
application, leading to a denial of service, or possibly execute
arbitrary code with user privileges. (CVE-2021-3796)

Update instructions

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

Ubuntu 21.04

• vim - 2:8.2.2434-1ubuntu1.1

Ubuntu 20.04

• vim - 2:8.1.2269-1ubuntu5.3

Ubuntu 18.04

• vim - 2:8.0.1453-1ubuntu1.6

Ubuntu 16.04

• vim - 2:7.4.1689-3ubuntu1.5+esm2
  Available with Ubuntu Pro

Ubuntu 14.04

• vim - 2:7.4.052-1ubuntu3.1+esm3
  Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References

• CVE-2021-3796
• CVE-2021-3778
• CVE-2021-3770