CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS
Percentile
92.3%
PolarSSL team reports:
During the parsing of a ASN.1 sequence, a pointer in the linked list of asn1_sequence is not
initialized by asn1_get_sequence_of(). In case an error occurs during parsing of the list, a
situation is created where the uninitialized pointer is passed to polarssl_free().
This sequence can be triggered when a PolarSSL entity is parsing a certificate. So practically this
means clients when receiving a certificate from the server or servers in case they are actively
asking for a client certificate.