NULL pointer dereference in Tor - CVE-2018-0490
Published: April 30, 2018
Vulnerability identifier: #VU12293
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-0490
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: tor.eff.org
Affected software:
Tor
Tor
Detailed vulnerability description
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists in the directory-authority protocol-list subprotocol implementation due to NULL pointer dereference. A remote attacker can cause the service to crash via a misformatted relay descriptor that is mishandled during voting.
The weakness exists in the directory-authority protocol-list subprotocol implementation due to NULL pointer dereference. A remote attacker can cause the service to crash via a misformatted relay descriptor that is mishandled during voting.
How to mitigate CVE-2018-0490
Update to versions 0.2.9.15, 0.3.1.10 or 0.3.2.10.