Use-After-Free Vulnerability in Mozilla Thunderbird and Firefox
CVE-2017-7784

9.8CRITICAL

Key Information:

Vendor

Debian
Status
Debian Linux
Vendor
CVE Published:
11 June 2018

What is CVE-2017-7784?

A use-after-free vulnerability can be triggered in Mozilla Thunderbird and Firefox when accessing an image observer during the frame reconstruction process after it has already been freed. This issue may lead to application crashes and could potentially be exploited by attackers to execute arbitrary code, thereby compromising system integrity.

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References

https://www.mozilla.org/security/advisories/mfsa2017-19/
x_refsource_CONFIRM
https://www.mozilla.org/security/advisories/mfsa2017-20/
x_refsource_CONFIRM
https://www.debian.org/security/2017/dsa-3968
vendor-advisoryx_refsource_DEBIAN

EPSS Score

5% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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