SB2020090339 - Key management errors in busybox (Alpine package)
Published: September 3, 2020
Security Bulletin ID
SB2020090339
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Key management errors (CVE-ID: CVE-2017-13086)
CWE-ID: CWE-320 - Key Management Errors
CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber
The vulnerability allows an adjacent attacker to force a supplicant that is compliant with the 802.11z standard to reinstall a previously used TPK key.
The weakness exists in the processing of the 802.11z (Extensions to Direct-Link Setup) TDLS handshake messages due to ambiguities in the processing of associated protocol messages. An adjacent attacker can passively eavesdrop on a TDLS handshake and retransmit previously used message exchanges between supplicant and authenticator.
Remediation
Install update from vendor's website.