Bug#854969: vim: CVE-2017-5953 does not properly validate values for tree length when handling a spell file

Markus Koschany apo at debian.org
Sun Feb 12 17:26:18 UTC 2017


Package: vim
Severity: important
Tags: security patch

Hi,

the following vulnerability was published for vim.

CVE-2017-5953[0]:
| vim before patch 8.0.0322 does not properly validate values for tree
| length when handling a spell file, which may result in an integer
| overflow at a memory allocation site and a resultant buffer overflow.

If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

Patch:
https://github.com/vim/vim/commit/399c297aa93afe2c0a39e2a1b3f972aebba44c9d

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2017-5953
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5953
Please adjust the affected versions in the BTS as needed.

Regards,

Markus

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