HIGH
Mozilla: Uninitialized memory use by WebRTC encoder
Published Jun 11, 2018
7.5
HIGHCVSS 3.0
EPSS 2.65%
Description
WebRTC can use a "WrappedI420Buffer" pixel buffer but the owning image object can be freed while it is still in use. This can result in the WebRTC encoder using uninitialized memory, leading to a potentially exploitable crash. This vulnerability affects Firefox < 60.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<60
- Version
Configuration 1
OR
- 14.04
- 16.04
- 17.10
- 18.04
No data.
Red Hat Enterprise Linux 6
firefox
Not affected
Red Hat Enterprise Linux 6
thunderbird
Not affected
Red Hat Enterprise Linux 7
firefox
Not affected
Red Hat Enterprise Linux 7
thunderbird
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 6 | thunderbird | Not affected | n/a |
| Red Hat Enterprise Linux 7 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 7 | 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.
7.5 HIGH NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
1 other source (Red Hat) ▾
7.5 HIGH Red Hat
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.65% 0.02654
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02654
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (24 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.65% (0.02654) | 85.13th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.69% (0.02689) | 83.87th | v5 (v2026.06.15) |
| Sep 8, 2025 | 2.05% (0.02046) | 83.16th | v4 (v2025.03.14) |
| Jun 29, 2025 | 3.06% (0.03059) | 86.13th | v4 (v2025.03.14) |
| Mar 30, 2025 | 4.15% (0.04151) | 87.59th | v4 (v2025.03.14) |
| Mar 29, 2025 | 11.97% (0.11966) | 89.58th | v4 (v2025.03.14) |
| Mar 17, 2025 | 4.23% (0.04228) | 88.01th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.42% (0.00420) | 74.41th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.42% (0.00420) | 73.51th | v3 (v2023.03.01) |
| Dec 12, 2023 | 0.42% (0.00420) | 71.32th | v3 (v2023.03.01) |
| Nov 2, 2023 | 0.57% (0.00574) | 75.52th | v3 (v2023.03.01) |
| Jul 10, 2023 | 0.82% (0.00820) | 79.56th | v3 (v2023.03.01) |
| Jul 8, 2023 | 0.83% (0.00826) | 79.64th | v3 (v2023.03.01) |
| Jun 5, 2023 | 1.16% (0.01163) | 82.88th | v3 (v2023.03.01) |
| May 8, 2023 | 1.19% (0.01185) | 82.98th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.84% (0.00842) | 79.53th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.02% (0.01018) | 38.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.32% (0.01324) | 31.25th | v1 |
| Jan 6, 2022 | 1.32% (0.01324) | 30.61th | v1 |
| Sep 1, 2021 | 1.32% (0.01324) | 69.73th | v1 |
| Apr 14, 2021 | 1.32% (0.01324) | 0.00th | v1 |
Weaknesses (2)
References (10)
- http://www.securityfocus.com/bid/104139 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040896 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2018-5160 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1436117 x_refsource_CONFIRMIssue TrackingPermissions RequiredVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1576261 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2018-5160
- https://usn.ubuntu.com/3645-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-5160
- https://www.mozilla.org/en-US/security/advisories/mfsa2018-11/#CVE-2018-5160
- https://www.mozilla.org/security/advisories/mfsa2018-11/ x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/104139 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1040896 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2018-5160 | Vendor Advisory | |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1436117 | x_refsource_CONFIRMIssue TrackingPermissions RequiredVendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1576261 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-5160 | ||
| https://usn.ubuntu.com/3645-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2018-5160 | ||
| https://www.mozilla.org/en-US/security/advisories/mfsa2018-11/#CVE-2018-5160 | ||
| https://www.mozilla.org/security/advisories/mfsa2018-11/ | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mozilla
Published Jun 11, 2018
Updated Aug 5, 2024
Reserved Jan 3, 2018
Link CVE-2018-5160
CISA Vulnrichment
Updated n/a