SB2018070655 - Use-after-free in Google, Google Android
Published: July 6, 2018 Updated: August 8, 2020
Security Bulletin ID
SB2018070655
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2018-5899)
The vulnerability allows a local authenticated user to execute arbitrary code.
In Android releases from CAF using the linux kernel (Android for MSM, Firefox OS for MSM, QRD Android) before security patch level 2018-06-05, whenever TDLS connection is setup, we are freeing the netbuf in ol_tx_completion_handler and after that, we are accessing it in NBUF_UPDATE_TX_PKT_COUNT causing a use after free.
Remediation
Install update from vendor's website.