Vulnerability Details : CVE-2017-5426
On Linux, if the secure computing mode BPF (seccomp-bpf) filter is running when the Gecko Media Plugin sandbox is started, the sandbox fails to be applied and items that would run within the sandbox are run protected only by the running filter which is typically weak compared to the sandbox. Note: this issue only affects Linux. Other operating systems are not affected. This vulnerability affects Firefox < 52 and Thunderbird < 52.
Products affected by CVE-2017-5426
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-5426
0.30%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 69 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-5426
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:P/A:N |
10.0
|
2.9
|
NIST | |
5.3
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
3.9
|
1.4
|
NIST |
CWE ids for CVE-2017-5426
-
The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-5426
-
https://www.mozilla.org/security/advisories/mfsa2017-05/
Security vulnerabilities fixed in Firefox 52 — MozillaVendor Advisory
-
https://bugzilla.mozilla.org/show_bug.cgi?id=1257361
1257361 - (CVE-2017-5426) Firefox doesn't actually enable GMP sandboxing if started with a seccomp-bpf filter already appliedIssue Tracking;Patch;Vendor Advisory
-
http://www.securityfocus.com/bid/96694
Mozilla Firefox CVE-2017-5426 Security Bypass VulnerabilityThird Party Advisory;VDB Entry
-
https://www.mozilla.org/security/advisories/mfsa2017-09/
Security vulnerabilities fixed in - Thunderbird 52 — MozillaVendor Advisory
-
http://www.securitytracker.com/id/1037966
Mozilla Firefox Multiple Bugs Let Remote Users Bypass Security Restrictions, Spoof URLs, Obtain Potentially Sensitive Information, Deny Service, and Execute Arbitrary Code - SecurityTrackerThird Party Advisory;VDB Entry
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