GLSA Bodhisattva
Joined: 13 Jun 2003 Posts: 4087 Location: Dresden, Germany
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Posted: Wed Dec 15, 2004 4:47 pm Post subject: [ GLSA 200412-10 ] Vim, gVim: Vulnerable options in modeline |
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Gentoo Linux Security Advisory
Title: Vim, gVim: Vulnerable options in modelines (GLSA 200412-10)
Severity: normal
Exploitable: local
Date: December 15, 2004
Bug(s): #73715
ID: 200412-10
Synopsis
Several vulnerabilities related to the use of options in modelines have been found and fixed in Vim. They could potentially result in a local user escalating privileges.
Background
Vim is an efficient, highly configurable improved version of the classic 'vi' text editor. gVim is the GUI version of Vim.
Affected Packages
Package: app-editors/vim
Vulnerable: < 6.3-r2
Unaffected: >= 6.3-r2
Architectures: All supported architectures
Package: app-editors/gvim
Vulnerable: < 6.3-r2
Unaffected: >= 6.3-r2
Architectures: All supported architectures
Description
Gentoo's Vim maintainer, Ciaran McCreesh, found several vulnerabilities related to the use of options in Vim modelines. Options like 'termcap', 'printdevice', 'titleold', 'filetype', 'syntax', 'backupext', 'keymap', 'patchmode' or 'langmenu' could be abused.
Impact
A local attacker could write a malicious file in a world readable location which, when opened in a modeline-enabled Vim, could trigger arbitrary commands with the rights of the user opening the file, resulting in privilege escalation. Please note that modelines are disabled by default in the /etc/vimrc file provided in Gentoo.
Workaround
There is no known workaround at this time.
Resolution
All Vim users should upgrade to the latest version: Code: | # emerge --sync
# emerge --ask --oneshot --verbose ">=app-editors/vim-6.3-r2" | All gVim users should also upgrade to the latest version: Code: | # emerge --sync
# emerge --ask --oneshot --verbose ">=app-editors/gvim-6.3-r2" |
References
CAN-2004-1138
Last edited by GLSA on Tue Jun 27, 2006 4:16 am; edited 3 times in total |
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