Ubuntu Security Notice USN-6838-1 ≈ Packet Storm

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Ubuntu Security Notice USN-6838-1^[6]: Authored by Ubuntu ^[7] | Site security.ubuntu.com ^[8]; Ubuntu Security Notice 6838-1 - It was discovered that Ruby RDoc incorrectly parsed certain YAML files. If a user or automated system were tricked into parsing a specially crafted .rdoc_options file, a remote attacker could possibly use this issue to execute arbitrary code. It was discovered that the Ruby regex compiler incorrectly handled certain memory operations. A remote attacker could possibly use this issue to obtain sensitive memory contents.; systems | linux ^[9], ubuntu ^[10]; advisories | CVE-2024-27281 ^[11], CVE-2024-27282 ^[12]; SHA-256 | 120b5d48766d2e4145ff11d42e77720c22fbb0e8c31ac33a57af9a29ab60b5c4; Download ^[13] | Favorite ^[14] | View ^[15]

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Ubuntu Security Notice USN-6838-1
June 17, 2024
ruby2.7, ruby3.0, ruby3.1, ruby3.2 vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 24.04 LTS
- Ubuntu 23.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
Summary:
Several security issues were fixed in Ruby.
Software Description:
- ruby3.2: Object-oriented scripting language
- ruby3.1: Object-oriented scripting language
- ruby3.0: Object-oriented scripting language
- ruby2.7: Object-oriented scripting language
Details:
It was discovered that Ruby RDoc incorrectly parsed certain YAML files. If
a user or automated system were tricked into parsing a specially crafted
.rdoc_options file, a remote attacker could possibly use this issue to
execute arbitrary code. (CVE-2024-27281)
It was discovered that the Ruby regex compiler incorrectly handled certain
memory operations. A remote attacker could possibly use this issue to
obtain sensitive memory contents. (CVE-2024-27282)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 24.04 LTS
libruby3.2                      3.2.3-1ubuntu0.24.04.1
ruby3.2                         3.2.3-1ubuntu0.24.04.1
Ubuntu 23.10
libruby3.1                      3.1.2-7ubuntu3.2
ruby3.1                         3.1.2-7ubuntu3.2
Ubuntu 22.04 LTS
libruby3.0                      3.0.2-7ubuntu2.6
ruby3.0                         3.0.2-7ubuntu2.6
Ubuntu 20.04 LTS
libruby2.7                      2.7.0-5ubuntu1.13
ruby2.7                         2.7.0-5ubuntu1.13
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-6838-1
CVE-2024-27281, CVE-2024-27282
Package Information:
https://launchpad.net/ubuntu/+source/ruby3.2/3.2.3-1ubuntu0.24.04.1
https://launchpad.net/ubuntu/+source/ruby3.1/3.1.2-7ubuntu3.2
https://launchpad.net/ubuntu/+source/ruby3.0/3.0.2-7ubuntu2.6
https://launchpad.net/ubuntu/+source/ruby2.7/2.7.0-5ubuntu1.13