UBUNTU-CVE-2023-0464
A security vulnerability has been identified in all supported versions of OpenSSL related to the verification of X.509 certificate chains that include policy constraints. Attackers may be able to exploit this vulnerability by creating a malicious certificate chain that triggers exponential use of computational resources, leading to a denial-of-service (DoS) attack on affected systems. Policy processing is disabled by default but can be enabled by passing the `-policy' argument to the command line utilities or by calling the `X509_VERIFY_PARAM_set1_policies()' function.
02 / AFFECTED SOFTWARE
Affected packages
26 explicit affected versions
15 explicit affected versions
15 explicit affected versions
19 explicit affected versions
13 explicit affected versions
11 explicit affected versions
35 explicit affected versions
7 explicit affected versions
31 explicit affected versions
12 explicit affected versions
12 explicit affected versions
13 explicit affected versions
7 explicit affected versions
11 explicit affected versions
7 explicit affected versions
2 explicit affected versions
2 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
A security vulnerability has been identified in all supported versions of OpenSSL related to the verification of X.509 certificate chains that include policy constraints. Attackers may be able to exploit this vulnerability by creating a malicious certificate chain that triggers exponential use of computational resources, leading to a denial-of-service (DoS) attack on affected systems. Policy processing is disabled by default but can be enabled by passing the `-policy' argument to the command line utilities or by calling the `X509_VERIFY_PARAM_set1_policies()' function.
05 / REFERENCES