SB20260715103 - Ubuntu update for vim



SB20260715103 - Ubuntu update for vim

Published: July 15, 2026

Security Bulletin ID SB20260715103
CSH Severity
High
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 33% Medium 33% Low 33%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 vulnerabilities.


1) Code Injection (CVE-ID: CVE-2026-59856)

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to improper control of code generation in runtime/autoload/phpcomplete.vim when processing a crafted PHP file during omni-completion. A remote attacker can trick the victim into opening a crafted file and invoking omni-completion to execute arbitrary code.

User interaction is required to open a crafted PHP file and manually invoke omni-completion, and exploitation requires filetype plugins to be enabled.


2) Out-of-bounds write (CVE-ID: CVE-2026-59857)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to out-of-bounds write in the SAL sound-folding logic in spell_soundfold_sal() when processing a boundary-length word through soundfold() with a SAL-based spell language active. A local user can supply a crafted boundary-length word to cause a denial of service.

The vulnerable path is only reached under a non-multibyte 8-bit encoding such as latin1, and spell checking must be enabled with a SAL-based language.


3) Code Injection (CVE-ID: CVE-2026-59858)

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to improper neutralization of special elements in the C omni-completion script in runtime/autoload/ccomplete.vim when processing type information from a tags entry during omni-completion. A local user can supply a crafted tags entry and trick the victim into invoking C omni-completion on a hostile .c file to execute arbitrary code.

User interaction is required to open a hostile .c file and invoke omni-completion on a structure-member access, and the issue is reachable only when filetype plugins are enabled and a reachable tags file is used.


Remediation

Install update from vendor's website.