USN-5147-1: Vim vulnerabilities

Releases

• Ubuntu 21.10
• 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

It was discovered that Vim incorrectly handled permissions on the .swp
file. A local attacker could possibly use this issue to obtain sensitive
information. This issue only affected Ubuntu 14.04 ESM. (CVE-2017-17087)

It was discovered that Vim incorrectly handled restricted mode. A local
attacker could possibly use this issue to bypass restricted mode and
execute arbitrary commands. Note: This update only makes executing shell
commands more difficult. Restricted mode should not be considered a
complete security measure. This issue only affected Ubuntu 14.04 ESM.
(CVE-2019-20807)

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 possible execute
arbitrary code with user privileges. This issue only affected
Ubuntu 20.04 LTS, Ubuntu 21.04 and Ubuntu 21.10. (CVE-2021-3872)

It was 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 possible execute
arbitrary code with user privileges. (CVE-2021-3903)

It was 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 possible execute
arbitrary code with user privileges. (CVE-2021-3927)

It was 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 possible execute
arbitrary code with user privileges. (CVE-2021-3928)

Update instructions

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

Ubuntu 21.10

• vim - 2:8.2.2434-3ubuntu3.1

Ubuntu 21.04

• vim - 2:8.2.2434-1ubuntu1.2

Ubuntu 20.04

• vim - 2:8.1.2269-1ubuntu5.4

Ubuntu 18.04

• vim - 2:8.0.1453-1ubuntu1.7

Ubuntu 16.04

• vim - 2:7.4.1689-3ubuntu1.5+esm3
  Available with Ubuntu Pro

Ubuntu 14.04

• vim - 2:7.4.052-1ubuntu3.1+esm4
  Available with Ubuntu Pro

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

References

• CVE-2021-3928
• CVE-2021-3927
• CVE-2017-17087
• CVE-2019-20807
• CVE-2021-3903
• CVE-2021-3872

Related notices

• USN-4582-1: vim-gtk3, xxd, vim-runtime, vim-gnome, vim-nox-py2, vim-gtk-py2, vim-nox, vim-common, vim, vim-gnome-py2, vim-athena-py2, vim-athena, vim-gui-common, vim-gtk, vim-gtk3-py2, vim-tiny, vim-doc