DEBIAN-CVE-2023-0286
- Source
- https://security-tracker.debian.org/tracker/CVE-2023-0286
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-0286.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2023-0286
- Upstream
- Downstream
- Published
- 2023-02-08T20:15:24Z
- Modified
- 2026-09-15T09:00:10Z
- Severity
-
- 7.4 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
There is a type confusion vulnerability relating to X.400 address processing inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRING but the public structure definition for GENERAL_NAME incorrectly specified the type of the x400Address field as ASN1_TYPE. This field is subsequently interpreted by the OpenSSL function GENERAL_NAME_cmp as an ASN1_TYPE rather than an ASN1_STRING. When CRL checking is enabled (i.e. the application sets the X509_V_FLAG_CRL_CHECK flag), this vulnerability may allow an attacker to pass arbitrary pointers to a memcmp call, enabling them to read memory contents or enact a denial of service. In most cases, the attack requires the attacker to provide both the certificate chain and CRL, neither of which need to have a valid signature. If the attacker only controls one of these inputs, the other input must already contain an X.400 address as a CRL distribution point, which is uncommon. As such, this vulnerability is most likely to only affect applications which have implemented their own functionality for retrieving CRLs over a network.
- References
Affected packages
Debian:12 / openssl
Package
- Name
- openssl
- Purl
- pkg:deb/debian/openssl?arch=source&distro=bookworm
Debian:13 / openssl
Package
- Name
- openssl
- Purl
- pkg:deb/debian/openssl?arch=source&distro=trixie
Debian:14 / openssl
Package
- Name
- openssl
- Purl
- pkg:deb/debian/openssl?arch=source&distro=forky