SB2018032212 - Fedora 28 update for qt5-qtwebengine
Published: March 22, 2018 Updated: April 24, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 12 secuirty vulnerabilities.
1) Universal cross-site scripting (CVE-ID: CVE-2017-15429)
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists in V8 due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
2) Race condition (CVE-ID: CVE-2018-6033)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to race condition when opening downloaded files. A remote attacker can trick the victim into opening a specially crafted file, trigger race condition and execute arbitrary code with privileges of the current user.
Successful exploitation of the vulnerability may result in system compromise.
3) Use-after-free error (CVE-ID: CVE-2018-6060)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.The weakness exists due to use-after-free error in Blink. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with elevated privileges.
Successful exploitation of the vulnerability may result in system compromise.
4) Heap-based buffer overflow (CVE-ID: CVE-2018-6062)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.The weakness exists due to heap-based buffer overflow in Skia. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with elevated privileges.
Successful exploitation of the vulnerability may result in system compromise.
5) Type confusion (CVE-ID: CVE-2018-6064)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.The weakness exists due to type confusion in V8. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with elevated privileges.
Successful exploitation of the vulnerability may result in system compromise.
6) Stack-based buffer overflow (CVE-ID: CVE-2018-6069)
The vulnerability allows a remote attacker to cause DoS condition on the target system.The weakness exists in Skia due to stack-based buffer overflow. A remote attacker can trigger memory corruption and cause the service to crash.
7) Heap-based buffer overflow (CVE-ID: CVE-2018-6071)
The vulnerability allows a remote attacker to cause DoS condition on the target system.The weakness exists in Skia due to heap-based buffer overflow. A remote attacker can trigger memory corruption and cause the service to crash.
8) Heap-based buffer overflow (CVE-ID: CVE-2018-6073)
The vulnerability allows a remote attacker to cause DoS condition on the target system.The weakness exists in WebGL due to heap-based buffer overflow. A remote attacker can trigger memory corruption and cause the service to crash.
9) Data handling (CVE-ID: CVE-2018-6076)
The vulnerability allows a remote attacker to cause DoS condition on the target system.The weakness exists in Blink due to incorrect handling of URL fragment identifiers. A remote attacker can cause the service to crash.
10) Information disclosure (CVE-ID: CVE-2018-6079)
The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.The weakness exists in WebGL due to improper information control via texture data. A remote attacker can gain access to potentially sensitive information.
11) Cross-site scripting (CVE-ID: CVE-2018-6081)
The vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The weakness exists in interstitials due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
12) Security restrictions bypass (CVE-ID: CVE-2018-6082)
The vulnerability allows a remote attacker to bypass security restrictions on the target system.The weakness exists due to circumvention of port blocking. A remote attacker can bypass security restrictions.
Remediation
Install update from vendor's website.