Medium: vim

Issue Overview:

Vim is an improved version of the good old UNIX editor Vi. Heap-use-after-free in memory allocated in the function ga_grow_inner in in the file src/alloc.c at line 748, which is freed in the file src/ex_docmd.c in the function do_cmdline at line 1010 and then used again in src/cmdhist.c at line 759. When using the :history command, it’s possible that the provided argument overflows the accepted value. Causing an Integer Overflow and potentially later an use-after-free. This vulnerability has been patched in version 9.0.2068. (CVE-2023-46246)

Affected Packages:

vim

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

Issue Correction:
Run yum update vim to update your system.

New Packages:

aarch64:  
    vim-common-9.0.2081-1.amzn2.0.1.aarch64  
    vim-minimal-9.0.2081-1.amzn2.0.1.aarch64  
    vim-enhanced-9.0.2081-1.amzn2.0.1.aarch64  
    vim-X11-9.0.2081-1.amzn2.0.1.aarch64  
    xxd-9.0.2081-1.amzn2.0.1.aarch64  
    vim-debuginfo-9.0.2081-1.amzn2.0.1.aarch64  
  
i686:  
    vim-common-9.0.2081-1.amzn2.0.1.i686  
    vim-minimal-9.0.2081-1.amzn2.0.1.i686  
    vim-enhanced-9.0.2081-1.amzn2.0.1.i686  
    vim-X11-9.0.2081-1.amzn2.0.1.i686  
    xxd-9.0.2081-1.amzn2.0.1.i686  
    vim-debuginfo-9.0.2081-1.amzn2.0.1.i686  
  
noarch:  
    vim-filesystem-9.0.2081-1.amzn2.0.1.noarch  
    vim-data-9.0.2081-1.amzn2.0.1.noarch  
  
src:  
    vim-9.0.2081-1.amzn2.0.1.src  
  
x86_64:  
    vim-common-9.0.2081-1.amzn2.0.1.x86_64  
    vim-minimal-9.0.2081-1.amzn2.0.1.x86_64  
    vim-enhanced-9.0.2081-1.amzn2.0.1.x86_64  
    vim-X11-9.0.2081-1.amzn2.0.1.x86_64  
    xxd-9.0.2081-1.amzn2.0.1.x86_64  
    vim-debuginfo-9.0.2081-1.amzn2.0.1.x86_64  

Additional References

Red Hat: CVE-2023-46246

Mitre: CVE-2023-46246