CVE-2017-7802

Impact:
Important
Public Date:
2017-08-08
CWE:
CWE-416
Bugzilla:
1479224: CVE-2017-7802 Mozilla: Use-after-free resizing image elements (MFSA 2017-19)

The MITRE CVE dictionary describes this issue as:

A use-after-free vulnerability can occur when manipulating the DOM during the resize event of an image element. If these elements have been freed due to a lack of strong references, a potentially exploitable crash may occur when the freed elements are accessed. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.

Find out more about CVE-2017-7802 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v3 metrics

CVSS3 Base Score 7.5
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity Impact High
Availability Impact High

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 7 (firefox) RHSA-2017:2456 2017-08-10
Red Hat Enterprise Linux 6 (thunderbird) RHSA-2017:2534 2017-08-24
Red Hat Enterprise Linux 6 (firefox) RHSA-2017:2456 2017-08-10
Red Hat Enterprise Linux 7 (thunderbird) RHSA-2017:2534 2017-08-24

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