CVE-2017-6349: Integer Overflow
First published: Mon Feb 27 2017(Updated: )
An integer overflow at a u_read_undo memory allocation site would occur for vim before patch 8.0.0377, if it does not properly validate values for tree length when reading a corrupted undo file, which may lead to resultant buffer overflows.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/neovim | 0.4.4-1 0.7.2-7 0.9.5-7 0.9.5-10 | |
| debian/vim | 2:8.2.2434-3+deb11u1 2:9.0.1378-2 2:9.1.0709-2 2:9.1.0777-1 | |
| SUSE Vim | <=8.0.0376 |
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Reference Links
- http://www.securityfocus.com/bid/96451
- http://www.securitytracker.com/id/1037949
- https://github.com/vim/vim/commit/3eb1637b1bba19519885dd6d377bd5596e91d22c
- https://groups.google.com/forum/#!topic/vim_dev/LAgsTcdSfNA
- https://groups.google.com/forum/#!topic/vim_dev/QPZc0CY9j3Y
- https://security.gentoo.org/glsa/201706-26
- https://usn.ubuntu.com/4309-1/
- https://groups.google.com/forum/#%21topic/vim_dev/LAgsTcdSfNA
- https://groups.google.com/forum/#%21topic/vim_dev/QPZc0CY9j3Y
- https://launchpad.net/bugs/cve/CVE-2017-6349
- https://security-tracker.debian.org/tracker/CVE-2017-6349
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-6349
- https://nvd.nist.gov/vuln/detail/CVE-2017-6349
- https://ubuntu.com/security/CVE-2017-6349
Frequently Asked Questions
What is the severity of CVE-2017-6349?
CVE-2017-6349 has a high severity rating due to the potential for buffer overflows resulting from integer overflow vulnerabilities.
How do I fix CVE-2017-6349?
To fix CVE-2017-6349, upgrade Vim to version 8.0.0377 or later, or apply the appropriate patches for affected versions.
What versions of Vim are affected by CVE-2017-6349?
Versions of Vim before 8.0.0377 are affected by CVE-2017-6349.
Is Neovim affected by CVE-2017-6349?
Yes, specific versions of Neovim prior to 0.4.4-1 are affected by CVE-2017-6349.
What can happen if CVE-2017-6349 is exploited?
Exploitation of CVE-2017-6349 could lead to arbitrary code execution due to buffer overflows caused by the integer overflow.
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