Mozilla: Use-after-free in driver timers
Published Oct 18, 2018
9.8
CRITICALCVSS 3.0
EPSS 3.36%
Description
A use-after-free vulnerability can occur when refresh driver timers are refreshed in some circumstances during shutdown when the timer is deleted while still in use. This results in a potentially exploitable crash. This vulnerability affects Firefox < 62, Firefox ESR < 60.2, and Thunderbird < 60.2.1.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<62
- Version
-
- Version unspecifiedStatusaffectedConstraints<60.2
- Version
-
- Version unspecifiedStatusaffectedConstraints<60.2.1
- 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
- 6.0
- 7.0
- 6.0
- 7.0
- 7.6
- 7.5
- 7.6
- 7.6
- 6.0
- 7.0
Configuration 2
- 8.0
- 9.0
Configuration 3
- 14.04
- 16.04
- 18.04
No data.
Red Hat Enterprise Linux 6
firefox-0:60.2.0-1.el6
Fixed · RHSA-2018:2693
Red Hat Enterprise Linux 6
thunderbird-0:60.2.1-5.el6
Fixed · RHSA-2018:3403
Red Hat Enterprise Linux 7
firefox-0:60.2.0-1.el7_5
Fixed · RHSA-2018:2692
Red Hat Enterprise Linux 7
thunderbird-0:60.2.1-4.el7_5
Fixed · RHSA-2018:3458
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | firefox-0:60.2.0-1.el6 | Fixed | RHSA-2018:2693 |
| Red Hat Enterprise Linux 6 | thunderbird-0:60.2.1-5.el6 | Fixed | RHSA-2018:3403 |
| Red Hat Enterprise Linux 7 | firefox-0:60.2.0-1.el7_5 | Fixed | RHSA-2018:2692 |
| Red Hat Enterprise Linux 7 | thunderbird-0:60.2.1-4.el7_5 | Fixed | RHSA-2018:3458 |
No package ranges for this CVE.
Remediation
Red Hat statement
This flaw cannot be exploited through email in Thunderbird as scripting is disabled in this for email content. It may be possible to exploit through Feeds (Atom or RSS) or other browser-like contexts.
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:U/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 2, 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 (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 3.36% (0.03357) | 88.32th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.36% (0.03357) | 87.10th | v5 (v2026.06.15) |
| Oct 1, 2025 | 3.11% (0.03107) | 86.36th | v4 (v2025.03.14) |
| Mar 30, 2025 | 2.02% (0.02021) | 82.15th | v4 (v2025.03.14) |
| Mar 29, 2025 | 5.18% (0.05177) | 82.78th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.68% (0.01678) | 80.92th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.39% (0.00393) | 74.23th | v3 (v2023.03.01) |
| Apr 19, 2024 | 0.56% (0.00558) | 77.38th | v3 (v2023.03.01) |
| Mar 10, 2024 | 0.60% (0.00603) | 77.98th | v3 (v2023.03.01) |
| Oct 12, 2023 | 0.70% (0.00699) | 78.01th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.62% (0.00621) | 76.21th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.51% (0.00505) | 72.84th | 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 | 3.68% (0.03679) | 72.20th | v5 (v2026.06.15) |
| Apr 14, 2021 | 3.68% (0.03679) | 0.00th | v1 |
References (22)
- http://www.securityfocus.com/bid/105280 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1041610 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2018:2692 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2693 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3403 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3458 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2018-12377 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1470260 x_refsource_CONFIRMIssue TrackingPermissions RequiredVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1625526 Issue Tracking
- https://lists.debian.org/debian-lts-announce/2018/11/msg00011.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-12377
- https://security.gentoo.org/glsa/201810-01 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://security.gentoo.org/glsa/201811-13 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://usn.ubuntu.com/3761-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3793-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-12377
- https://www.debian.org/security/2018/dsa-4287 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://www.debian.org/security/2018/dsa-4327 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2018-21/#CVE-2018-12377
- https://www.mozilla.org/security/advisories/mfsa2018-20/ x_refsource_CONFIRMVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-21/ x_refsource_CONFIRMVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-25/ x_refsource_CONFIRMVendor Advisory
Change history (0)
No recorded changes yet.