SB20200310123 - Out-of-bounds read in firefox (Alpine package)
Published: March 10, 2020
Security Bulletin ID
SB20200310123
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2020-6806)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to an out-of-bounds read error due to BodyStream::OnInputStreamReady was missing protections against state confusion. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=559ca01ce273111fa46352af60e88d74c657c7f5
- https://git.alpinelinux.org/aports/commit/?id=1d258f723c31c630b8159e94a980ef430a9ea27b
- https://git.alpinelinux.org/aports/commit/?id=82e6adffb8c262ce3e9453fbbe8e7fd2406bc48f
- https://git.alpinelinux.org/aports/commit/?id=a16f83f7141a8f92c825dbe6822ff641ad8fa846
- https://git.alpinelinux.org/aports/commit/?id=672f75ca5f5562f95ab35778287af25da1b99013