Headline
CVE-2022-28738: CVE-2022-28738
A double free was found in the Regexp compiler in Ruby 3.x before 3.0.4 and 3.1.x before 3.1.2. If a victim attempts to create a Regexp from untrusted user input, an attacker may be able to write to unexpected memory locations.
Name
CVE-2022-28738
Description
A double free was found in the Regexp compiler in Ruby 3.x before 3.0.4 and 3.1.x before 3.1.2. If a victim attempts to create a Regexp from untrusted user input, an attacker may be able to write to unexpected memory locations.
Source
CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
Debian Bugs
1009958
Vulnerable and fixed packages
The table below lists information on source packages.
Source Package
Release
Version
Status
ruby2.3 (PTS)
stretch
2.3.3-1+deb9u8
fixed
stretch (security)
2.3.3-1+deb9u11
fixed
ruby2.5 (PTS)
buster, buster (security)
2.5.5-3+deb10u4
fixed
ruby2.7 (PTS)
bullseye (security), bullseye
2.7.4-1+deb11u1
fixed
sid
2.7.5-1
fixed
ruby3.0 (PTS)
bookworm
3.0.3-1
vulnerable
sid
3.0.4-7
fixed
The information below is based on the following data on fixed versions.
Package
Type
Release
Fixed Version
Urgency
Origin
Debian Bugs
ruby2.3
source
(unstable)
(not affected)
ruby2.5
source
(unstable)
(not affected)
ruby2.7
source
(unstable)
(not affected)
ruby3.0
source
(unstable)
3.0.4-1
1009958
Notes
- ruby2.7 <not-affected> (Vulnerable code not present)
- ruby2.5 <not-affected> (Vulnerable code not present)
- ruby2.3 <not-affected> (Vulnerable code not present)
https://github.com/ruby/ruby/commit/052ec6d2585c3ace95671013d336f5543624ef3d (v3_0_4)
https://github.com/ruby/ruby/commit/73f45e5e96ccc13a131f7c0122cf8600ce5b930f (v3_1_2)
https://www.ruby-lang.org/en/news/2022/04/12/double-free-in-regexp-compilation-cve-2022-28738/
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A double free was found in the Regexp compiler in Ruby 3.x before 3.0.4 and 3.1.x before 3.1.2. If a victim attempts to create a Regexp from untrusted user input, an attacker may be able to write to unexpected memory locations.