CVE-2023-0286
CVE Details
Last Update
10/14/24
NIST CVE Summary
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.
Our Official Summary
Investigation is ongoing to determine how this vulnerability affects our products.
CVE Severity
Status
Ongoing
Affected Products & Versions
- Palette Enterprise 4.5.3
- Palette VerteX 4.5.3
Revision History
- 1.0 10/14/24 Initial Publication
- 2.0 10/14/2024 Added Palette Enterprise & Palette VerteX 4.5.3 to Affected Products