Mozilla: Privilege escalation through IPC channel messages
Published Feb 5, 2019
10.0
CRITICALCVSS 3.0
EPSS 4.42%
Description
An earlier fix for an Inter-process Communication (IPC) vulnerability, CVE-2011-3079, added authentication to communication between IPC endpoints and server parents during IPC process creation. This authentication is insufficient for channels created after the IPC process is started, leading to the authentication not being correctly applied to later channels. This could allow for a sandbox escape through IPC channels due to lack of message validation in the listener process. This vulnerability affects Thunderbird < 60.5, Firefox ESR < 60.5, and Firefox < 65.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<65
- Version
-
- Version unspecifiedStatusaffectedConstraints<60.5
- Version
-
- Version unspecifiedStatusaffectedConstraints<60.5
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox | n/a |
| ||||||
| Mozilla | Firefox ESR | n/a |
| ||||||
| Mozilla | Thunderbird | n/a |
|
Configuration 1
Configuration 2
- 14.04
- 16.04
- 18.04
- 18.10
Configuration 3
- 8.0
- 9.0
Configuration 4
- 6.0
- 7.0
- 6.0
- 7.0
- 7.6
- 7.6
- 7.6
- 6.0
- 7.0
No data.
Red Hat Enterprise Linux 6
firefox-0:60.5.0-2.el6
Fixed · RHSA-2019:0218
Red Hat Enterprise Linux 6
thunderbird-0:60.5.0-1.el6_10
Fixed · RHSA-2019:0269
Red Hat Enterprise Linux 7
firefox-0:60.5.0-2.el7
Fixed · RHSA-2019:0219
Red Hat Enterprise Linux 7
thunderbird-0:60.5.0-1.el7_6
Fixed · RHSA-2019:0270
Red Hat Enterprise Linux 8
firefox
Not affected
Red Hat Enterprise Linux 8
thunderbird
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | firefox-0:60.5.0-2.el6 | Fixed | RHSA-2019:0218 |
| Red Hat Enterprise Linux 6 | thunderbird-0:60.5.0-1.el6_10 | Fixed | RHSA-2019:0269 |
| Red Hat Enterprise Linux 7 | firefox-0:60.5.0-2.el7 | Fixed | RHSA-2019:0219 |
| Red Hat Enterprise Linux 7 | thunderbird-0:60.5.0-1.el7_6 | Fixed | RHSA-2019:0270 |
| Red Hat Enterprise Linux 8 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 8 | thunderbird | 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:L/PR:N/UI:N/S:C/C:H/I:H/A:H
AV:N/AC:L/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
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (18 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.42% (0.04416) | 91.04th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.54% (0.04538) | 90.31th | v5 (v2026.06.15) |
| May 29, 2026 | 2.04% (0.02044) | 84.13th | v4 (v2025.03.14) |
| Nov 21, 2025 | 3.19% (0.03192) | 86.50th | v4 (v2025.03.14) |
| Nov 18, 2025 | 6.44% (0.06442) | 90.12th | v4 (v2025.03.14) |
| Nov 10, 2025 | 3.25% (0.03252) | 86.62th | v4 (v2025.03.14) |
| Aug 16, 2025 | 4.26% (0.04261) | 88.37th | v4 (v2025.03.14) |
| Mar 30, 2025 | 2.98% (0.02978) | 85.30th | v4 (v2025.03.14) |
| Mar 29, 2025 | 7.60% (0.07598) | 86.15th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.98% (0.02978) | 85.61th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.70% (0.00696) | 80.90th | v3 (v2023.03.01) |
| Jun 28, 2024 | 0.75% (0.00751) | 81.12th | v3 (v2023.03.01) |
| Jan 30, 2024 | 1.02% (0.01020) | 82.17th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.79% (0.00791) | 78.87th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.69% (0.02686) | 82.85th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.69% (0.02686) | 62.66th | v2 (v2022.01.01) |
| Feb 3, 2022 | 3.88% (0.03876) | 72.87th | v5 (v2026.06.15) |
| Apr 14, 2021 | 3.88% (0.03876) | 0.00th | v1 |
References (23)
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00021.html vendor-advisoryx_refsource_SUSE
- http://www.securityfocus.com/bid/106781 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2019:0218 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0219 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0269 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0270 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2018-18505 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1087565 x_refsource_CONFIRMIssue TrackingPatchVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1670633 Issue Tracking
- https://lists.debian.org/debian-lts-announce/2019/01/msg00025.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/02/msg00024.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-18505
- https://security.gentoo.org/glsa/201903-04 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://security.gentoo.org/glsa/201904-07 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://usn.ubuntu.com/3874-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3897-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-18505
- https://www.debian.org/security/2019/dsa-4376 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://www.debian.org/security/2019/dsa-4392 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-02/#CVE-2018-18505
- https://www.mozilla.org/security/advisories/mfsa2019-01/ x_refsource_CONFIRMVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-02/ x_refsource_CONFIRMVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-03/ x_refsource_CONFIRMVendor Advisory
Change history (0)
No recorded changes yet.