What’s Vulnerable › Vulnerabilities

CVE-2017-6349

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-02-27 · updated 2026-06-17
• Weakness: CWE-190

Description

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.

Affected products

• vim/vim: through 8.0.0376

References

• http://www.securityfocus.com/bid/96451
• http://www.securitytracker.com/id/1037949
• https://github.com/vim/vim/commit/3eb1637b1bba19519885dd6d377bd5596e91d22c
• https://groups.google.com/forum/#%21topic/vim_dev/LAgsTcdSfNA
• https://groups.google.com/forum/#%21topic/vim_dev/QPZc0CY9j3Y
• https://security.gentoo.org/glsa/201706-26
• https://usn.ubuntu.com/4309-1/
• http://www.securityfocus.com/bid/96451
• http://www.securitytracker.com/id/1037949
• https://github.com/vim/vim/commit/3eb1637b1bba19519885dd6d377bd5596e91d22c
• https://groups.google.com/forum/#%21topic/vim_dev/LAgsTcdSfNA
• https://groups.google.com/forum/#%21topic/vim_dev/QPZc0CY9j3Y

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