Vulnerability identifier: #VU68303
Vulnerability risk: Medium
CVSSv3.1: 6.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:U/RC:C]
CVE-ID:
CWE-ID:
CWE-476
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
heimdal
Server applications /
Encryption software
Vendor: Heimdal Software
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in lib/gssapi/spnego/accept_sec_context.c. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versions
heimdal: 7.0.1 - 7.7.0
External links
http://kb.cert.org/vuls/id/730793
http://github.com/heimdal/heimdal/commit/7a19658c1f4fc4adf85bb7bea96caae5ba57b33e
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.