Medium: vim

Issue Overview:

A heap-based buffer overflow vulnerability was found in GitHub repository vim/vim prior to 9.0.1376 in Vim’s utf_ptr2char() function of the src/mbyte.c file. This flaw occurs because there is access to invalid memory with put in visual block mode. An attacker can trick a user into opening a specially crafted file, triggering an out-of-bounds read that causes an application to crash, leading to a denial of service. (CVE-2023-1170)

Incorrect Calculation of Buffer Size in GitHub repository vim/vim prior to 9.0.1378. (CVE-2023-1175)

NULL Pointer Dereference in GitHub repository vim/vim prior to 9.0.1392. (CVE-2023-1264)

NULL Pointer Dereference in GitHub repository vim/vim prior to 9.0.1402. (CVE-2023-1355)

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-9.0.1403-1.amzn2.0.1.aarch64  
    vim-minimal-9.0.1403-1.amzn2.0.1.aarch64  
    vim-enhanced-9.0.1403-1.amzn2.0.1.aarch64  
    vim-X11-9.0.1403-1.amzn2.0.1.aarch64  
    vim-debuginfo-9.0.1403-1.amzn2.0.1.aarch64  
  
i686:  
    vim-common-9.0.1403-1.amzn2.0.1.i686  
    vim-minimal-9.0.1403-1.amzn2.0.1.i686  
    vim-enhanced-9.0.1403-1.amzn2.0.1.i686  
    vim-X11-9.0.1403-1.amzn2.0.1.i686  
    vim-debuginfo-9.0.1403-1.amzn2.0.1.i686  
  
noarch:  
    vim-filesystem-9.0.1403-1.amzn2.0.1.noarch  
    vim-data-9.0.1403-1.amzn2.0.1.noarch  
  
src:  
    vim-9.0.1403-1.amzn2.0.1.src  
  
x86_64:  
    vim-common-9.0.1403-1.amzn2.0.1.x86_64  
    vim-minimal-9.0.1403-1.amzn2.0.1.x86_64  
    vim-enhanced-9.0.1403-1.amzn2.0.1.x86_64  
    vim-X11-9.0.1403-1.amzn2.0.1.x86_64  
    vim-debuginfo-9.0.1403-1.amzn2.0.1.x86_64  

Additional References

Red Hat: CVE-2023-1170, CVE-2023-1175, CVE-2023-1264, CVE-2023-1355

Mitre: CVE-2023-1170, CVE-2023-1175, CVE-2023-1264, CVE-2023-1355