CVE-2023-38037

Name	CVE-2023-38037
Description	ActiveSupport::EncryptedFile writes contents that will be encrypted to a temporary file. The temporary file's permissions are defaulted to the user's current `umask` settings, meaning that it's possible for other users on the same system to read the contents of the temporary file. Attackers that have access to the file system could possibly read the contents of this temporary file while a user is editing it. All users running an affected release should either upgrade or use one of the workarounds immediately.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DSA-5881-1
Debian Bugs	1051057

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
rails (PTS)	bullseye (security), bullseye	2:6.0.3.7+dfsg-2+deb11u2	vulnerable
	bookworm	2:6.1.7.3+dfsg-2~deb12u1	vulnerable
	bookworm (security)	2:6.1.7.10+dfsg-1~deb12u1	fixed
	sid, trixie	2:7.2.2.1+dfsg-7	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
rails	source	bookworm	2:6.1.7.10+dfsg-1~deb12u1		DSA-5881-1
rails	source	(unstable)	2:7.2.2.1+dfsg-1			1051057

Notes

[bullseye] - rails <no-dsa> (Minor issue)
https://github.com/advisories/GHSA-cr5q-6q9f-rq6q
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/activesupport/CVE-2023-38037.yml
https://github.com/rails/rails/commit/a21d6edf35a60383dfa6c4da49e4b1aef5f00731 (v7.0.7.1)
https://github.com/rails/rails/commit/c85cc667ebfd3c270df37c7575d580ea6462e12f (v6.1.7.5)