Memory corruption in libtirpc - CVE-2018-14622
Published: August 30, 2018 / Updated: August 31, 2018
Vulnerability identifier: #VU14577
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-14622
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: linux-nfs.org
Affected software:
libtirpc
libtirpc
Detailed vulnerability description
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists due to boundary error when checking the return value of the makefd_xprt() function, as defined in the svc_vc.csource code. A remote attacker can flood a targeted system with new connections, exhaust the maximum number of available file descriptors, trigger NULL pointer dereference and cause the affected software to terminate abnormally.
How to mitigate CVE-2018-14622
Install update from vendor's website.