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List: ubuntu-security-announce
Subject: [USN-5147-1] Vim vulnerabilities
From: Spyros Seimenis <spyros.seimenis () canonical ! com>
Date: 2021-11-15 15:33:29
Message-ID: YZJ9yVObPV6IyEu9 () ubox ! localdomain
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==========================================================================
Ubuntu Security Notice USN-5147-1
November 15, 2021
vim vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 21.10
- Ubuntu 21.04
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM
Summary:
Several security issues were fixed in Vim.
Software Description:
- 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 LTS:
vim 2:8.1.2269-1ubuntu5.4
Ubuntu 18.04 LTS:
vim 2:8.0.1453-1ubuntu1.7
Ubuntu 16.04 ESM:
vim 2:7.4.1689-3ubuntu1.5+esm3
Ubuntu 14.04 ESM:
vim 2:7.4.052-1ubuntu3.1+esm4
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-5147-1
CVE-2017-17087, CVE-2019-20807, CVE-2021-3872, CVE-2021-3903,
CVE-2021-3927, CVE-2021-3928
Package Information:
https://launchpad.net/ubuntu/+source/vim/2:8.2.2434-3ubuntu3.1
https://launchpad.net/ubuntu/+source/vim/2:8.2.2434-1ubuntu1.2
https://launchpad.net/ubuntu/+source/vim/2:8.1.2269-1ubuntu5.4
https://launchpad.net/ubuntu/+source/vim/2:8.0.1453-1ubuntu1.7
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