CVE-2017-7756

Impact:
Important
Public Date:
2017-06-14
Bugzilla:
1461258: CVE-2017-7756 Mozilla: Use-after-free and use-after-scope logging XHR header errors (MFSA 2017-16)

The MITRE CVE dictionary describes this issue as:

A use-after-free and use-after-scope vulnerability when logging errors from headers for XML HTTP Requests (XHR). This could result in a potentially exploitable crash. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.

Find out more about CVE-2017-7756 from the MITRE CVE dictionary dictionary and NIST NVD.

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

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 Abhishek Arya as the original reporter.

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation