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CVE-2017-7800

Date: June 11, 2018

A use-after-free vulnerability can occur in WebSockets when the object holding the connection is freed before the disconnection operation is finished. This results in an exploitable crash. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.

Language: Unix

Severity Score

Related Resources (16)

https://bugzilla.mozilla.org/show_bug.cgi?id=1374047
http://www.securityfocus.com/bid/100196
https://www.mozilla.org/security/advisories/mfsa2017-19/
https://nvd.nist.gov/vuln/detail/CVE-2017-7800
https://access.redhat.com/errata/RHSA-2017:2456
https://www.debian.org/security/2017/dsa-3968
https://www.mozilla.org/security/advisories/mfsa2017-18/
https://access.redhat.com/errata/RHSA-2017:2534
https://security-tracker.debian.org/tracker/CVE-2017-7800
https://people.canonical.com/~ubuntu-security/cve/CVE-2017-7800
https://www.debian.org/security/2017/dsa-3928
https://www.mozilla.org/security/advisories/mfsa2017-20/
https://security.gentoo.org/glsa/201803-14
http://www.securitytracker.com/id/1039124
https://access.redhat.com/security/cve/CVE-2017-7800
https://www.mend.io/vulnerability-database/CVE-2017-7800

Severity Score

Weakness Type (CWE)

Use After Free

CWE-416

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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