USN-5613-1: Vim vulnerabilities

Releases

• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM
• Ubuntu 14.04 ESM

Packages

• vim - Vi IMproved - enhanced vi editor

Details

It was discovered that Vim was not properly performing bounds checks
when executing spell suggestion commands. An attacker could possibly use
this issue to cause a denial of service or execute arbitrary code.
(CVE-2022-0943)

It was discovered that Vim was using freed memory when dealing with
regular expressions through its old regular expression engine. If a user
were tricked into opening a specially crafted file, an attacker could
crash the application, leading to a denial of service, or possibly achieve
code execution. (CVE-2022-1154)

It was discovered that Vim was not properly performing checks on name of
lambda functions. An attacker could possibly use this issue to cause a
denial of service. This issue affected only Ubuntu 22.04 LTS.
(CVE-2022-1420)

It was discovered that Vim was incorrectly performing bounds checks
when processing invalid commands with composing characters in Ex
mode. An attacker could possibly use this issue to cause a denial of
service or execute arbitrary code. (CVE-2022-1616)

It was discovered that Vim was not properly processing latin1 data
when issuing Ex commands. An attacker could possibly use this issue to
cause a denial of service or execute arbitrary code. (CVE-2022-1619)

It was discovered that Vim was not properly performing memory
management when dealing with invalid regular expression patterns in
buffers. An attacker could possibly use this issue to cause a denial of
service. (CVE-2022-1620)

It was discovered that Vim was not properly processing invalid bytes
when performing spell check operations. An attacker could possibly use
this issue to cause a denial of service or execute arbitrary code.
(CVE-2022-1621)

Update instructions

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

Ubuntu 22.04

• vim - 2:8.2.3995-1ubuntu2.1

Ubuntu 20.04

• vim - 2:8.1.2269-1ubuntu5.8

Ubuntu 18.04

• vim - 2:8.0.1453-1ubuntu1.9

Ubuntu 14.04

• vim - 2:7.4.052-1ubuntu3.1+esm5
  Available with Ubuntu Pro

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

References

• CVE-2022-1621
• CVE-2022-1616
• CVE-2022-1620
• CVE-2022-1154
• CVE-2022-1420
• CVE-2022-0943
• CVE-2022-1619

Related notices

• USN-5460-1: vim-doc, vim-gui-common, vim, vim-nox-py2, vim-tiny, vim-common, vim-gnome-py2, vim-gtk-py2, vim-gtk, vim-gtk3-py2, vim-gtk3, vim-athena, vim-gnome, vim-nox, vim-athena-py2, vim-runtime
• USN-5613-2: vim-doc, vim-gui-common, vim, vim-tiny, vim-common, xxd, vim-gtk, vim-gtk3, vim-athena, vim-nox, vim-runtime
• USN-5433-1: vim-doc, vim-gui-common, vim, vim-nox-py2, vim-tiny, vim-common, vim-gnome-py2, vim-gtk-py2, vim-gtk, vim-gtk3-py2, vim-gtk3, vim-athena, vim-gnome, vim-nox, vim-athena-py2, vim-runtime