SB2020042402 - Amazon Linux AMI update for libtirpc

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2020042402

SB2020042402 - Amazon Linux AMI update for libtirpc

Published: April 24, 2020

Security Bulletin ID SB2020042402
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Partial DoS

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Memory corruption (CVE-ID: CVE-2018-14622)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: 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


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.


Remediation

Install update from vendor's website.

References