Buffer overflow in GnuTLS - CVE-2019-3836
Published: April 1, 2019
Vulnerability identifier: #VU18106
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-3836
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: GnuTLS
Affected software:
GnuTLS
GnuTLS
Detailed vulnerability description
The vulnerability allows a remote attacker to perform denial of service attack.
The vulnerability exists due to uninitialized pointer access when processing TLS1.3 asynchronous messages. A remote attacker can pass specially crafted asynchronous post-handshake message, trigger memory corruption and perform denial of service attack.
How to mitigate CVE-2019-3836
Install updates from vendor's website.