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AUSCERT External Security Bulletin Redistribution
ESB-2020.3540
USN-4582-1: Vim vulnerabilities
15 October 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: Vim
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2019-20807 CVE-2017-17087
Reference: ESB-2020.2430
ESB-2019.2908
Original Bulletin:
https://usn.ubuntu.com/4582-1/
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USN-4582-1: Vim vulnerabilities
14 October 2020
Several security issues were fixed in Vim.
Releases
o Ubuntu 18.04 LTS
o Ubuntu 16.04 LTS
Packages
o 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 16.04 LTS. (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. (CVE-2019-20807)
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 18.04
o vim - 2:8.0.1453-1ubuntu1.4
o vim-common - 2:8.0.1453-1ubuntu1.4
o vim-runtime - 2:8.0.1453-1ubuntu1.4
Ubuntu 16.04
o vim - 2:7.4.1689-3ubuntu1.5
o vim-common - 2:7.4.1689-3ubuntu1.5
o vim-runtime - 2:7.4.1689-3ubuntu1.5
In general, a standard system update will make all the necessary changes.
References
o CVE-2019-20807
o CVE-2017-17087
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