Multiple vulnerabilities in Mozilla Firefox

Published: 2019-02-13 10:26:44 | Updated: 2019-02-13
Severity High
Patch available YES
Number of vulnerabilities 3
CVE ID CVE-2018-18356
CVE-2019-5785
CVE-2018-18511
CVSSv3 5.7 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
7.7 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
4.1 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]
CWE ID CWE-416
CWE-190
CWE-264
Exploitation vector Network
Public exploit N/A
Vulnerable software Mozilla Firefox
Vulnerable software versions Mozilla Firefox 64.0.2
Mozilla Firefox 64.0.1
Mozilla Firefox 65.0

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Vendor URL Mozilla

Security Advisory

1) Use-after-free error

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to use-after-free error in Skia when handling malicious input. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and cause the browser to crash.

Remediation

Update to version 65.0.1.

External links

https://www.mozilla.org/en-US/security/advisories/mfsa2019-04/

2) Integer overflow

Description

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. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger integer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Remediation

Install updates from vendor's website.

External links

https://www.mozilla.org/en-US/security/advisories/mfsa2019-04/

3) Permissions, Privileges, and Access Controls

Description

The vulnerability allows a remote attacker to bypass same-origin policy.

The vulnerability exists due to an error when processing canvas elements with transferFromImageBitmap method. A remote attacker can create a specially crafted website, trick the victim into visiting it, bypass cross-origin policy and view images loaded in other browser tabs.

Remediation

Install updates from vendor's website.

External links

https://www.mozilla.org/en-US/security/advisories/mfsa2019-04/

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