SB2018081018 - Arch Linux update for thunderbird
Published: August 10, 2018
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 5 secuirty vulnerabilities.
1) Type confusion (CVE-ID: CVE-2018-5156)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists when capturing a media stream when the media source type is changed as the capture is occurring. A remote unauthenticated attacker can trick the victim into visiting a specially crafted website, trigger type confusion and execute arbitrary code with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
2) Memory corruption (CVE-ID: CVE-2018-5187)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to boundary error when handling malicious input. A remote unauthenticated attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
3) Integer overflow (CVE-ID: CVE-2018-12361)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to integer overflow in the SwizzleData code while calculating buffer sizes. A remote unauthenticated attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
4) Timing attack (CVE-ID: CVE-2018-12367)
The vulnerability allows a remote attacker to conduct timing attack.The weakness exists due to in the previous mitigations for Spectre, the resolution or precision of various methods was reduced to counteract the ability to measure precise time intervals. A remote attacker can use PerformanceNavigationTiming as a precision timer and conduct timing attack and gain access to arbitrary data.
5) Integer overflow (CVE-ID: CVE-2018-12371)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to integer overflow in the Skia library when allocating memory for edge builders on some systems with at least 16 GB of RAM. A remote unauthenticated attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.