UBUNTU-CVE-2022-4203

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Source
https://ubuntu.com/security/CVE-2022-4203
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-4203.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2022-4203
Related
Published
2023-02-07T00:00:00Z
Modified
2023-02-07T00:00:00Z
Severity
  • 4.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

A read buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to continue certificate verification despite failure to construct a path to a trusted issuer. The read buffer overrun might result in a crash which could lead to a denial of service attack. In theory it could also result in the disclosure of private memory contents (such as private keys, or sensitive plaintext) although we are not aware of any working exploit leading to memory contents disclosure as of the time of release of this advisory. In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects.

References

Affected packages

Ubuntu:22.04:LTS / openssl

Package

Name
openssl
Purl
pkg:deb/ubuntu/openssl?arch=src?distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.0.2-0ubuntu1.8

Affected versions

1.*

1.1.1l-1ubuntu1

3.*

3.0.0-1ubuntu1
3.0.1-0ubuntu1
3.0.2-0ubuntu1
3.0.2-0ubuntu1.1
3.0.2-0ubuntu1.2
3.0.2-0ubuntu1.4
3.0.2-0ubuntu1.5
3.0.2-0ubuntu1.6
3.0.2-0ubuntu1.7

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "3.0.2-0ubuntu1.8",
            "binary_name": "libssl-dev"
        },
        {
            "binary_version": "3.0.2-0ubuntu1.8",
            "binary_name": "libssl-doc"
        },
        {
            "binary_version": "3.0.2-0ubuntu1.8",
            "binary_name": "libssl3"
        },
        {
            "binary_version": "3.0.2-0ubuntu1.8",
            "binary_name": "libssl3-dbgsym"
        },
        {
            "binary_version": "3.0.2-0ubuntu1.8",
            "binary_name": "openssl"
        },
        {
            "binary_version": "3.0.2-0ubuntu1.8",
            "binary_name": "openssl-dbgsym"
        }
    ]
}