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High severity · published Aug 5, 2016
CVE-2016-5259
Use-after-free vulnerability in the CanonicalizeXPCOMParticipant function in Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 allows remote attackers to execute…
8.8
CVSS
3.3%
EPSS
No
On KEV
Description
Use-after-free vulnerability in the CanonicalizeXPCOMParticipant function in Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 allows remote attackers to execute arbitrary code via a script that closes its own Service Worker within a nested sync event loop.
CVSS vector
CVSS:3.0/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)3.3% · higher than 88% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
through 47.0.1; 45.1.0; 45.1.1; 45.2.0; 45.3.0 · source: NVD
LI
Linux · Oracle
5.0; 6; 7 · source: NVD
Affected product
FI
Firefox
Mozilla
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-5259
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-5259
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00004.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00029.html
rhn.redhat.com
http://rhn.redhat.com/errata/RHSA-2016-1551.html
www.debian.org
http://www.debian.org/security/2016/dsa-3640
Vendor Advisory
http://www.mozilla.org/security/announce/2016/mfsa2016-73.html
Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
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