High severity · published Jan 8, 2020
CVE-2019-11758
Mozilla community member Philipp reported a memory safety bug present in Firefox 68 when 360 Total Security was installed
8.8
CVSS
1.3%
EPSS
No
On KEV
Description
Mozilla community member Philipp reported a memory safety bug present in Firefox 68 when 360 Total Security was installed. This bug showed evidence of memory corruption in the accessibility engine and we presume that with enough effort that it could be exploited to run arbitrary code. This vulnerability affects Firefox < 69, Thunderbird < 68.2, and Firefox ESR < 68.2.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.3% · higher than 71% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
before 69.0 · source: NVD
FE
Firefox Esr · Mozilla
before 68.2 · source: NVD
TH
Thunderbird · Mozilla
before 68.2 · source: NVD
UL
Ubuntu Linux · Canonical
16.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-11758
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-11758
Exploit
https://bugzilla.mozilla.org/show_bug.cgi?id=1536227
Third Party Advisory
https://usn.ubuntu.com/4335-1/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-25/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-33/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-35/
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