Mozilla: Use-after-free and buffer overflow in Service Workers (MFSA 2016-42)
Published Apr 30, 2016
7.5
HIGHCVSS 3.0
EPSS 2.40%
Description
Race condition in the get implementation in the ServiceWorkerManager class in the Service Worker subsystem in Mozilla Firefox before 46.0 allows remote attackers to execute arbitrary code or cause a denial of service (buffer overflow and application crash) via a crafted web site.
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
firefox
Not affected
Red Hat Enterprise Linux 6
firefox
Not affected
Red Hat Enterprise Linux 7
firefox
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 6 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 7 | firefox | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
AV:N/AC:H/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.40% (0.02401) | 83.43th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.40% (0.02401) | 81.81th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.47% (0.00467) | 62.39th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.52% (0.01515) | 87.52th | v3 (v2023.03.01) |
| May 30, 2024 | 1.52% (0.01515) | 86.99th | v3 (v2023.03.01) |
| Dec 17, 2023 | 1.48% (0.01481) | 85.36th | v3 (v2023.03.01) |
| Aug 1, 2023 | 1.37% (0.01366) | 84.50th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.19% (0.01188) | 82.90th | v3 (v2023.03.01) |
| Mar 6, 2023 | 5.00% (0.05002) | 89.53th | v2 (v2022.01.01) |
| Apr 1, 2022 | 5.00% (0.05002) | 88.48th | v2 (v2022.01.01) |
| Mar 11, 2022 | 5.00% (0.05002) | 75.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.44% (0.04439) | 70.91th | v2 (v2022.01.01) |
References (14)
- http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00005.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2016-05/msg00038.html vendor-advisoryx_refsource_SUSE
- http://www.mozilla.org/security/announce/2016/mfsa2016-42.html x_refsource_CONFIRMVendor Advisory
- http://www.securitytracker.com/id/1035692 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/USN-2936-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2936-2 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2936-3 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2016-2812 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1261776 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=1330277 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2016-2812
- https://security.gentoo.org/glsa/201701-15 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2016-2812
- https://www.mozilla.org/security/announce/2016/mfsa2016-42.html
Change history (0)
No recorded changes yet.