RustsecRUSTSEC-2020-0015Crash causing Denial of Service attack
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.34 Low
EPSS
Percentile
96.5%
Server or client applications that call the SSL_check_chain() function during or after a TLS 1.3
handshake may crash due to a NULL pointer dereference as a result of incorrect handling of the
“signature_algorithms_cert” TLS extension. The crash occurs if an invalid or unrecognised signature
algorithm is received from the peer. This could be exploited by a malicious peer in a Denial of
Service attack.
| CPE | Name | Operator | Version |
|---|---|---|---|
| openssl-src | ge | 111.6.0 | |
| openssl-src | lt | 111.9.0 |
Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.34 Low
EPSS
Percentile
96.5%