#VU12340 Out-of-bounds write in Linux kernel - CVE-2017-13220

Vulnerability identifier: #VU12340

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-13220

CWE-ID: CWE-787

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 gain elevated privileges on the target system.

The weakness exists in the Upstream kernel bluez due to put-of-bounds access. A local attacker can trigger memory corruption and gain root privileges.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 4.13 - 4.13.16

---

External links
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=51bda2bca53b265715ca18...

---

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.