CVE-2017-7753

Impact:
Important
Public Date:
2017-08-08
CWE:
CWE-125
Bugzilla:
1479188: CVE-2017-7753 Mozilla: Out-of-bounds read with cached style data and pseudo-elements (MFSA 2017-19)

The MITRE CVE dictionary describes this issue as:

An out-of-bounds read occurs when applying style rules to pseudo-elements, such as ::first-line, using cached style data. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.

Find out more about CVE-2017-7753 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 SkyLined as the original reporter.

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation