Vulnerability identifier: #VU74631
Vulnerability risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-835
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Linux kernel
Operating systems & Components /
Operating system
Vendor: Linux Foundation
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop in tipc_link_xmit() within the Linux kernel TIPC kernel module when parsing UDp packets. A remote attacker can send two small UDP packets to a system with a UDP bearer and consume all available CPU resources.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Linux kernel:
External links
http://github.com/torvalds/linux/commit/b77413446408fdd256599daf00d5be72b5f3e7c6
http://gist.github.com/netspooky/bee2d07022f6350bb88eaa48e571d9b5
http://infosec.exchange/@_mattata/109427999461122360
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.