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Ubuntu Security Notice USN-5955-1

Ubuntu Security Notice 5955-1 - It was discovered that Emacs did not properly manage certain files when using htmlfontify functionality. A local attacker could possibly use this issue to cause a denial of service, or possibly execute arbitrary commands.

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==========================================================================Ubuntu Security Notice USN-5955-1March 15, 2023emacs24 vulnerability==========================================================================A security issue affects these releases of Ubuntu and its derivatives:- Ubuntu 16.04 ESMSummary:Emacs could be made to crash or run programs as your login if itopened a specially crafted file.Software Description:- emacs24: GNU Emacs editorDetails:It was discovered that Emacs did not properly manage certain files whenusing htmlfontify functionality. A local attacker could possibly use thisissue to cause a denial of service, or possibly execute arbitrary commands.Update instructions:The problem can be corrected by updating your system to the followingpackage versions:Ubuntu 16.04 ESM:   emacs24                         24.5+1-6ubuntu1.1+esm2In general, a standard system update will make all the necessary changes.References:   https://ubuntu.com/security/notices/USN-5955-1   CVE-2022-48339

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Red Hat Security Advisory 2023-3481-01

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RHSA-2023:3481: Red Hat Security Advisory: emacs security update

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Red Hat Security Advisory 2023-2626-01

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RHSA-2023:2626: Red Hat Security Advisory: emacs security update

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Debian Linux Security Advisory 5360-1 - Xi Lu discovered that missing input sanitising in Emacs (in etags, the Ruby mode and htmlfontify) could result in the execution of arbitrary shell commands.

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.

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