| Description: | Summary:
The remote host is missing an update for the Debian 'openssl' package(s) announced via the DLA-3449-1 advisory.
Vulnerability Insight:
Multiple vulnerabilities have been discovered in OpenSSL, a Secure Sockets Layer toolkit.
CVE-2023-0464
David Benjamin reported a flaw related to the verification of X.509 certificate chains that include policy constraints, which may result in denial of service.
CVE-2023-0465
David Benjamin reported that invalid certificate policies in leaf certificates are silently ignored. A malicious CA could take advantage of this flaw to deliberately assert invalid certificate policies in order to circumvent policy checking on the certificate altogether.
CVE-2023-0466
David Benjamin discovered that the implementation of the X509_VERIFY_PARAM_add0_policy() function does not enable the check which allows certificates with invalid or incorrect policies to pass the certificate verification (contrary to its documentation).
CVE-2023-2650
It was discovered that processing malformed ASN.1 object identifiers or data may result in denial of service.
For Debian 10 buster, these problems have been fixed in version 1.1.1n-0+deb10u5.
We recommend that you upgrade your openssl packages.
For the detailed security status of openssl please refer to its security tracker page at: [link moved to references]
Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: [link moved to references]
Affected Software/OS:
'openssl' package(s) on Debian 10.
Solution:
Please install the updated package(s).
CVSS Score:
7.8
CVSS Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:C
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