CVE-2017-7749

Impact:
Important
Public Date:
2017-06-14
Bugzilla:
1461253: CVE-2017-7749 Mozilla: Use-after-free during docshell reloading (MFSA 2017-16)

The MITRE CVE dictionary describes this issue as:

A use-after-free vulnerability when using an incorrect URL during the reloading of a docshell. This results in a potentially exploitable crash. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.

Find out more about CVE-2017-7749 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

Base Score 5.1
Base Metrics AV:N/AC:H/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity High
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial

CVSS v3 metrics

CVSS3 Base Score 5.6
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Impact Low
Availability Impact Low

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 6 (thunderbird) RHSA-2017:1561 2017-06-21
Red Hat Enterprise Linux 7 (thunderbird) RHSA-2017:1561 2017-06-21
Red Hat Enterprise Linux 6 (firefox) RHSA-2017:1440 2017-06-14
Red Hat Enterprise Linux 7 (firefox) RHSA-2017:1440 2017-06-14

Acknowledgements

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Nils as the original reporter.

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation