Vulnerability identifier: #VU89965
Vulnerability risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:A/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-401
Exploitation vector: Local 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 memory leak within the nexthops_dump() and EXPORT_SYMBOL() functions in net/ipv4/nexthop.c, within the vxlan_exit_batch_net() and register_nexthop_notifier() functions in drivers/net/vxlan.c. A remote attacker can perform a denial of service (DoS) attack.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Linux kernel:
External links
http://git.kernel.org/stable/c/741760fa6252628a3d3afad439b72437d4b123d9
http://git.kernel.org/stable/c/3106a0847525befe3e22fc723909d1b21eb0d520
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.