Skip to content
OpenAdvisories
High ALAS2-2023-1981 3 CVEs

Important: emacs security update (Amazon Linux 2)

Published Mar 2, 2023 · Updated Mar 7, 2023

Summary

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2022-48339: An issue was discovered in GNU Emacs through 28.2. htmlfontify.el has a command injection vulnerability. In the hfy-istext-command function, the parameter file and parameter srcdir come from external input, and parameters are not escaped. If a file name or directory name contains shell metacharacters, code may be executed. CVE-2022-48338: An issue was discovered in GNU Emacs through 28.2. In ruby-mode.el, the ruby-find-library-file function has a local command injection vulnerability. The ruby-find-library-file function is an interactive function, and bound to C-c C-f. Inside the function, the external command gem is called through shell-command-to-string, but the feature-name parameters are not escaped. Thus, malicious Ruby source files may cause commands to be executed. CVE-2022-48337: GNU Emacs through 28.2 allows attackers to execute commands via shell metacharacters in the name of a source-code file, because lib-src/etags.c uses the system C library function in its implementation of the etags program. For example, a victim may use the "etags -u *" command (suggested in the etags documentation) in a situation where the current working directory has contents that depend on untrusted input.

Fixed packages 8

ReleasePackageFixed in
Amazon Linux · 2 emacs 1:27.2-4.amzn2.0.3
Amazon Linux · 2 emacs-common 1:27.2-4.amzn2.0.3
Amazon Linux · 2 emacs-debuginfo 1:27.2-4.amzn2.0.3
Amazon Linux · 2 emacs-devel 1:27.2-4.amzn2.0.3
Amazon Linux · 2 emacs-filesystem 1:27.2-4.amzn2.0.3
Amazon Linux · 2 emacs-lucid 1:27.2-4.amzn2.0.3
Amazon Linux · 2 emacs-nox 1:27.2-4.amzn2.0.3
Amazon Linux · 2 emacs-terminal 1:27.2-4.amzn2.0.3

Vulnerabilities 3

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2022-48337.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2022-48338.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2022-48339.html