There are multiple arithmetic overflow bugs when allocating memory for arrays, such as arrays of attributes and arrays of object identifiers. In some cases, these are reachable from the RPC protocol. This flaw could lead to a buffer overflow.
Created mingw-p11-kit tracking bugs for this issue:
Affects: fedora-all [bug 1907914]
Created p11-kit tracking bugs for this issue:
Affects: fedora-all [bug 1907912]
The p11-kit library is primarily intended to be used locally, in which case the attacker needs to have sufficient permission to access the p11-kit communication. Although there may be use cases of p11-kit being used with a remote entity, all parties must be considered trusted.
As a result, Red Hat considers this vulnerability with a Medium severity.
This issue has been addressed in the following products:
Red Hat Enterprise Linux 8
Via RHSA-2021:1609 https://access.redhat.com/errata/RHSA-2021:1609
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):