#VU7208 Privilege escalation in Linux kernel - CVE-2017-7482
Vulnerability identifier: #VU7208
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-2017-7482
CWE-ID:
CWE-120
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 due to buffer overflow. A local attacker can load a specially crafted Kerberos 5 ticket into a RxRPC key, trigger memory corruption and execute arbitrary code with root privileges.
Successful exploitation of the vulnerability may result in system compromise.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Linux kernel: 2.6.0 - 2.6.36 rc3, 3.0 - 3.0.68, 3.1 - 3.19, 3.2 - 3.2.81-1, 3.3 - 3.3.8, 3.4 - 3.4.32, 3.5.1 - 3.5.5, 3.8, 3.9, 4.0.1 - 4.0.9, 4.1 - 4.11.7, 4.2.0 - 4.2.8, 4.3 - 4.3.6, 4.4.0 - 4.4.74, 4.5.0 - 4.5.7, 4.6 rc1 - 4.6.7, 4.7.0 - 4.7.10, 4.8.0 - 4.8.17, 4.9 - 4.9.34
External links
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5f2f97656ada8d811d3c1b...
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.
