#VU10781 NULL pointer dereference in Linux kernel - CVE-2018-7492

Vulnerability identifier: #VU10781

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-7492

CWE-ID: CWE-476

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local attacker to cause DoS condition on the target system.

The vulnerability exists due to a NULL pointer dereference in the net/rds/rdma.c __rds_rdma_map() function. A local attacker can cause the system to crash.

Mitigation
Update to version 4.14.7.

Vulnerable software versions

Linux kernel: 4.14.1 - 4.14.6

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External links
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f3069c6d33f6ae63a16687...

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.