Vulnerability identifier: #VU10678
Vulnerability risk: Medium
CVSSv3.1: 7.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-416
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 cause DoS condition no the target system.
The weakness exists in the tcpmss_mangle_packet function in net/netfilter/xt_TCPMSS.c in the Linux kernel due to use-after-free error. A remote attacker can leverage the presence of xt_TCPMSS in an iptables action, trigger memory corruption and cause the system to crash.
Mitigation
Update to version 4.9.36 or 4.11.
Vulnerable software versions
Linux kernel: 4.9 - 4.9.35, 4.10.0 - 4.10.17
External links
http://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2638fd0f92d4397884fd99...
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.