SB2020021192 - Privilege escalation in libuv

Description

This security bulletin contains information about 1 vulnerability.

1) Race condition (CVE-ID: CVE-2014-9748)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: 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

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition in libuv due to incorrect implementation of the uv_rwlock_t fallback for Windows XP and Windows Server 2003. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.

Remediation

Install update from vendor's website.

References

• https://github.com/libuv/libuv/issues/515
• https://github.com/libuv/libuv/pull/516
• https://github.com/nodejs/node/pull/2723
• https://groups.google.com/forum/#!msg/libuv/KyNnGEXR0OA/NWb605ev2LUJ
• https://groups.google.com/forum/#!topic/libuv/WO2cl9zasN8