#VU30601 Resource exhaustion in Linux kernel - CVE-2019-19044

Vulnerability identifier: #VU30601

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-19044

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

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

Vendor: Linux Foundation

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

Two memory leaks in the v3d_submit_cl_ioctl() function in drivers/gpu/drm/v3d/v3d_gem.c in the Linux kernel before 5.3.11 allow attackers to cause a denial of service (memory consumption) by triggering kcalloc() or v3d_job_init() failures, aka CID-29cd13cfd762.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 5.3.1 - 5.3.10

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External links
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.11
https://github.com/torvalds/linux/commit/29cd13cfd7624726d9e6becbae9aa419ef35af7f
https://security.netapp.com/advisory/ntap-20191205-0001/
https://usn.ubuntu.com/4225-1/

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Q & A

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.