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CVE-2018-5153

If websocket data is sent with mixed text and binary in a single message, the binary data can be...

7.5 HighFix available

If websocket data is sent with mixed text and binary in a single message, the binary data can be corrupted. This can result in an out-of-bounds read with the read memory sent to the originating server in response. This vulnerability affects Firefox < 60.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
None
Availability
None

Exploit likelihood

1.65%Up 0.3 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 7.5

If websocket data is sent with mixed text and binary in a single message, the binary data can be corrupted. This can result in an out-of-bounds read with the read memory sent to the originating server in response. This vulnerability affects Firefox < 60.

Record
CVE-2018-5153
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness
CWE-125
Updated
2026-11-02
CVE List No score

If websocket data is sent with mixed text and binary in a single message, the binary data can be corrupted. This can result in an out-of-bounds read with the read memory sent to the originating server in response. This vulnerability affects Firefox < 60.

Record
CVE-2018-5153
Updated
2026-11-02
EUVDEUVD-2018-16939 No score

If websocket data is sent with mixed text and binary in a single message, the binary data can be corrupted. This can result in an out-of-bounds read with the read memory sent to the originating server in response. This vulnerability affects Firefox < 60.

Record
EUVD-2018-16939
Updated
2026-11-03
GitHub AdvisoriesGHSA-qcqg-65g5-53c7 7.5

If websocket data is sent with mixed text and binary in a single message, the binary data can be...

If websocket data is sent with mixed text and binary in a single message, the binary data can be corrupted. This can result in an out-of-bounds read with the read memory sent to the originating server in response. This vulnerability affects Firefox < 60.

Record
GHSA-qcqg-65g5-53c7
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-125
Updated
2026-11-02
OSVUBUNTU-CVE-2018-5153 7.5

If websocket data is sent with mixed text and binary in a single message, the binary data can be corrupted. This can result in an out-of-bounds read with the read memory sent to the originating server in response. This vulnerability affects Firefox < 60.

Record
UBUNTU-CVE-2018-5153
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVMGASA-2018-0248 No score

Updated firefox packages fix security vulnerabilities

Updated firefox packages fix security vulnerabilities:

Mozilla: Memory safety bugs fixed in Firefox ESR 52.8 (CVE-2018-5150).

Mozilla: Backport critical security fixes in Skia (CVE-2018-5183).

Mozilla: Use-after-free with SVG animations and clip paths (CVE-2018-5154).

Mozilla: Use-after-free with SVG animations and text paths (CVE-2018-5155).

Mozilla: Same-origin bypass of PDF Viewer to view protected PDF files (CVE-2018-5157).

Mozilla: Malicious PDF can inject JavaScript into PDF Viewer (CVE-2018-5158).

Mozilla: Integer overflow and out-of-bounds write in Skia (CVE-2018-5159).

Mozilla: Lightweight themes can be installed without user interaction (CVE-2018-5168).

Mozilla: Buffer overflow during UTF-8 to Unicode string conversion through legacy extension (CVE-2018-5178).

Rootcerts has been updated to 20180411.

Record
MGASA-2018-0248
Updated
2026-11-02
Show 4 moreShow less
OSVopenSUSE-SU-2024:10600-1 No score

MozillaFirefox-92.0-1.2 on GA media

These are all security issues fixed in the MozillaFirefox-92.0-1.2 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10600-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:14572-1 No score

firefox-esr-128.5.1-1.1 on GA media

These are all security issues fixed in the firefox-esr-128.5.1-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:14572-1
Updated
2026-11-02
OSVSUSE-SU-2019:2872-1 No score

Security update for MozillaFirefox

This update for MozillaFirefox to 68.2.0 ESR fixes the following issues:

Mozilla Firefox was updated to version 68.2.0 ESR (bsc#1154738).

Security issues fixed:

  • CVE-2019-15903: Fixed a heap overflow in the expat library (bsc#1149429).
  • CVE-2019-11757: Fixed a use-after-free when creating index updates in IndexedDB (bsc#1154738).
  • CVE-2019-11758: Fixed a potentially exploitable crash due to 360 Total Security (bsc#1154738).
  • CVE-2019-11759: Fixed a stack buffer overflow in HKDF output (bsc#1154738).
  • CVE-2019-11760: Fixed a stack buffer overflow in WebRTC networking (bsc#1154738).
  • CVE-2019-11761: Fixed an unintended access to a privileged JSONView object (bsc#1154738).
  • CVE-2019-11762: Fixed a same-origin-property violation (bsc#1154738).
  • CVE-2019-11763: Fixed an XSS bypass (bsc#1154738).
  • CVE-2019-11764: Fixed several memory safety bugs (bsc#1154738).

Non-security issues fixed:

  • Firefox 60.7 ESR changed the user interface language (bsc#1137990).
  • Wrong Firefox GUI Language (bsc#1120374).
  • Fixed an inadvertent crash report transmission without user opt-in (bsc#1074235).
  • Firefox hangs randomly when browsing and scrolling (bsc#1043008).
  • Firefox stops loading page until mouse is moved (bsc#1025108).
Record
SUSE-SU-2019:2872-1
Updated
2026-11-02
OSVUSN-3645-1 No score

firefox vulnerabilities

Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via application crash, bypass same-origin restrictions, conduct cross-site scripting (XSS) attacks, install lightweight themes without user interaction, spoof the filename in the downloads panel, or execute arbitrary code. (CVE-2018-5150, CVE-2018-5151, CVE-2018-5153, CVE-2018-5154, CVE-2018-5155, CVE-2018-5157, CVE-2018-5158, CVE-2018-5159, CVE-2018-5160, CVE-2018-5163, CVE-2018-5164, CVE-2018-5168, CVE-2018-5173, CVE-2018-5175, CVE-2018-5177, CVE-2018-5180)

Multiple security issues were discovered with WebExtensions. If a user were tricked in to installing a specially crafted extension, an attacker could potentially exploit these to obtain sensitive information, or bypass security restrictions. (CVE-2018-5152, CVE-2018-5166)

It was discovered that the web console and JavaScript debugger incorrectly linkified chrome: and javascript URLs. If a user were tricked in to clicking a specially crafted link, an attacker could potentially exploit this to conduct cross-site scripting (XSS) attacks. (CVE-2018-5167)

It was discovered that dragging and dropping link text on to the home button could set the home page to include chrome pages. If a user were tricked in to dragging and dropping a specially crafted link on to the home button, an attacker could potentially exploit this bypass security restrictions. (CVE-2018-5169)

It was discovered that the Live Bookmarks page and PDF viewer would run script pasted from the clipboard. If a user were tricked in to copying and pasting specially crafted text, an attacker could potentially exploit this to conduct cross-site scripting (XSS) attacks. (CVE-2018-5172)

It was discovered that the JSON viewer incorrectly linkified javascript: URLs. If a user were tricked in to clicking on a specially crafted link, an attacker could potentially exploit this to obtain sensitive information. (CVE-2018-5176)

It was discovered that dragging a file: URL on to a tab that is running in a different process would cause the file to open in that process. If a user were tricked in to dragging a file: URL, an attacker could potentially exploit this to bypass intended security policies. (CVE-2018-5181)

It was discovered that dragging text that is a file: URL on to the addressbar would open the specified file. If a user were tricked in to dragging specially crafted text on to the addressbar, an attacker could potentially exploit this to bypass intended security policies. (CVE-2018-5182)

Record
USN-3645-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
firefox
Mageia:6
From an advisory covering 9 CVEs
before 52.8.0-1.mga6
52.8.0-1.mga6
firefox-l10n
Mageia:6
From an advisory covering 9 CVEs
before 52.8.0-1.mga6
52.8.0-1.mga6
nss
Mageia:6
From an advisory covering 9 CVEs
before 3.28.6-1.4.mga6
3.28.6-1.4.mga6
rootcerts
Mageia:6
From an advisory covering 9 CVEs
before 20180411.00-1.mga6
20180411.00-1.mga6
MozillaFirefox
SUSE:HPE Helion OpenStack 8
From an advisory covering 51 CVEs
before 68.2.0-109.95.2
68.2.0-109.95.2
MozillaFirefox
SUSE:OpenStack Cloud 7
From an advisory covering 51 CVEs
before 68.2.0-109.95.2
68.2.0-109.95.2
MozillaFirefox
SUSE:OpenStack Cloud 8
From an advisory covering 51 CVEs
before 68.2.0-109.95.2
68.2.0-109.95.2
MozillaFirefox
SUSE:OpenStack Cloud Crowbar 8
From an advisory covering 51 CVEs
before 68.2.0-109.95.2
68.2.0-109.95.2
MozillaFirefox
SUSE:Linux Enterprise Desktop 12 SP4
From an advisory covering 51 CVEs
before 68.2.0-109.95.2
68.2.0-109.95.2
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 12 SP1
From an advisory covering 51 CVEs
before 68.2.0-109.95.2
68.2.0-109.95.2
Show 22 moreShow less
Affected packages
PackageAffectedFixed
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 12 SP2
From an advisory covering 51 CVEs
before 68.2.0-109.95.2
68.2.0-109.95.2
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 12 SP3
From an advisory covering 51 CVEs
before 68.2.0-109.95.2
68.2.0-109.95.2
MozillaFirefox
SUSE:Linux Enterprise Software Development Kit 12 SP4
From an advisory covering 51 CVEs
before 68.2.0-109.95.2
68.2.0-109.95.2
MozillaFirefox
SUSE:Linux Enterprise Software Development Kit 12 SP5
From an advisory covering 51 CVEs
before 68.2.0-109.95.2
68.2.0-109.95.2
MozillaFirefox
SUSE:Linux Enterprise Server 12 SP1-LTSS
From an advisory covering 51 CVEs
before 68.2.0-109.95.2
68.2.0-109.95.2
MozillaFirefox
SUSE:Linux Enterprise Server 12 SP2-LTSS
From an advisory covering 51 CVEs
before 68.2.0-109.95.2
68.2.0-109.95.2
MozillaFirefox
SUSE:Linux Enterprise Server 12 SP2-BCL
From an advisory covering 51 CVEs
before 68.2.0-109.95.2
68.2.0-109.95.2
MozillaFirefox
SUSE:Linux Enterprise Server 12 SP3-LTSS
From an advisory covering 51 CVEs
before 68.2.0-109.95.2
68.2.0-109.95.2
MozillaFirefox
SUSE:Linux Enterprise Server 12 SP3-BCL
From an advisory covering 51 CVEs
before 68.2.0-109.95.2
68.2.0-109.95.2
MozillaFirefox
SUSE:Linux Enterprise Server 12 SP4
From an advisory covering 51 CVEs
before 68.2.0-109.95.2
68.2.0-109.95.2
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 12 SP4
From an advisory covering 51 CVEs
before 68.2.0-109.95.2
68.2.0-109.95.2
MozillaFirefox
SUSE:Linux Enterprise Server 12 SP5
From an advisory covering 51 CVEs
before 68.2.0-109.95.2
68.2.0-109.95.2
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 12 SP5
From an advisory covering 51 CVEs
before 68.2.0-109.95.2
68.2.0-109.95.2
MozillaFirefox
SUSE:Enterprise Storage 5
From an advisory covering 51 CVEs
before 68.2.0-109.95.2
68.2.0-109.95.2
firefox
Ubuntu:14.04:LTS
before 60.0+build2-0ubuntu0.14.04.1, plus listed versions
24.0+build1-0ubuntu125.0+build3-0ubuntu0.13.10.128.0~b2+build1-0ubuntu228.0+build1-0ubuntu128.0+build2-0ubuntu1
Show 45 moreShow less
28.0+build2-0ubuntu229.0+build1-0ubuntu0.14.04.230.0+build1-0ubuntu0.14.04.331.0+build1-0ubuntu0.14.04.132.0+build1-0ubuntu0.14.04.132.0.3+build1-0ubuntu0.14.04.133.0+build2-0ubuntu0.14.04.134.0+build2-0ubuntu0.14.04.135.0+build3-0ubuntu0.14.04.235.0.1+build1-0ubuntu0.14.04.136.0+build2-0ubuntu0.14.04.436.0.1+build2-0ubuntu0.14.04.136.0.4+build1-0ubuntu0.14.04.137.0+build2-0ubuntu0.14.04.137.0.1+build1-0ubuntu0.14.04.137.0.2+build1-0ubuntu0.14.04.138.0+build3-0ubuntu0.14.04.139.0+build5-0ubuntu0.14.04.139.0.3+build2-0ubuntu0.14.04.140.0+build4-0ubuntu0.14.04.140.0+build4-0ubuntu0.14.04.440.0.3+build1-0ubuntu0.14.04.141.0+build3-0ubuntu0.14.04.141.0.1+build2-0ubuntu0.14.04.141.0.2+build2-0ubuntu0.14.04.142.0+build2-0ubuntu0.14.04.143.0+build1-0ubuntu0.14.04.143.0.4+build3-0ubuntu0.14.04.144.0+build3-0ubuntu0.14.04.144.0.1+build2-0ubuntu0.14.04.144.0.2+build1-0ubuntu0.14.04.145.0+build2-0ubuntu0.14.04.145.0.1+build1-0ubuntu0.14.04.245.0.2+build1-0ubuntu0.14.04.146.0+build5-0ubuntu0.14.04.246.0.1+build1-0ubuntu0.14.04.347.0+build3-0ubuntu0.14.04.148.0+build2-0ubuntu0.14.04.149.0+build4-0ubuntu0.14.04.149.0.2+build2-0ubuntu0.14.04.150.0+build2-0ubuntu0.14.04.250.0.2+build1-0ubuntu0.14.04.150.1.0+build2-0ubuntu0.14.04.151.0.1+build2-0ubuntu0.14.04.151.0.1+build2-0ubuntu0.14.04.2
60.0+build2-0ubuntu0.14.04.1
firefox
Ubuntu:16.04:LTS
before 60.0+build2-0ubuntu0.16.04.1, plus listed versions
41.0.2+build2-0ubuntu142.0+build2-0ubuntu144.0+build3-0ubuntu244.0.1+build1-0ubuntu144.0.2+build1-0ubuntu1
Show 37 moreShow less
45.0+build2-0ubuntu145.0.1+build1-0ubuntu145.0.2+build1-0ubuntu146.0+build5-0ubuntu0.16.04.246.0.1+build1-0ubuntu0.16.04.247.0+build3-0ubuntu0.16.04.148.0+build2-0ubuntu0.16.04.149.0+build4-0ubuntu0.16.04.149.0.2+build2-0ubuntu0.16.04.250.0+build2-0ubuntu0.16.04.250.0.2+build1-0ubuntu0.16.04.150.1.0+build2-0ubuntu0.16.04.151.0.1+build2-0ubuntu0.16.04.151.0.1+build2-0ubuntu0.16.04.252.0+build2-0ubuntu0.16.04.152.0.1+build2-0ubuntu0.16.04.152.0.2+build1-0ubuntu0.16.04.153.0+build6-0ubuntu0.16.04.153.0.2+build1-0ubuntu0.16.04.253.0.3+build1-0ubuntu0.16.04.254.0+build3-0ubuntu0.16.04.155.0.1+build2-0ubuntu0.16.04.255.0.2+build1-0ubuntu0.16.04.156.0+build6-0ubuntu0.16.04.156.0+build6-0ubuntu0.16.04.257.0+build4-0ubuntu0.16.04.557.0+build4-0ubuntu0.16.04.657.0.1+build2-0ubuntu0.16.04.157.0.3+build1-0ubuntu0.16.04.157.0.4+build1-0ubuntu0.16.04.158.0+build6-0ubuntu0.16.04.158.0.1+build1-0ubuntu0.16.04.158.0.2+build1-0ubuntu0.16.04.159.0+build5-0ubuntu0.16.04.159.0.1+build1-0ubuntu0.16.04.159.0.2+build1-0ubuntu0.16.04.159.0.2+build1-0ubuntu0.16.04.3
60.0+build2-0ubuntu0.16.04.1
firefox
Ubuntu:18.04:LTS
before 60.0+build2-0ubuntu1, plus listed versions
56.0+build6-0ubuntu157.0.1+build2-0ubuntu159.0.1+build1-0ubuntu159.0.2+build1-0ubuntu1
60.0+build2-0ubuntu1
firefox
Ubuntu:14.04:LTS
From an advisory covering 24 CVEs
before 60.0+build2-0ubuntu0.14.04.1, plus listed versions
24.0+build1-0ubuntu125.0+build3-0ubuntu0.13.10.128.0~b2+build1-0ubuntu228.0+build1-0ubuntu128.0+build2-0ubuntu1
Show 45 moreShow less
28.0+build2-0ubuntu229.0+build1-0ubuntu0.14.04.230.0+build1-0ubuntu0.14.04.331.0+build1-0ubuntu0.14.04.132.0+build1-0ubuntu0.14.04.132.0.3+build1-0ubuntu0.14.04.133.0+build2-0ubuntu0.14.04.134.0+build2-0ubuntu0.14.04.135.0+build3-0ubuntu0.14.04.235.0.1+build1-0ubuntu0.14.04.136.0+build2-0ubuntu0.14.04.436.0.1+build2-0ubuntu0.14.04.136.0.4+build1-0ubuntu0.14.04.137.0+build2-0ubuntu0.14.04.137.0.1+build1-0ubuntu0.14.04.137.0.2+build1-0ubuntu0.14.04.138.0+build3-0ubuntu0.14.04.139.0+build5-0ubuntu0.14.04.139.0.3+build2-0ubuntu0.14.04.140.0+build4-0ubuntu0.14.04.140.0+build4-0ubuntu0.14.04.440.0.3+build1-0ubuntu0.14.04.141.0+build3-0ubuntu0.14.04.141.0.1+build2-0ubuntu0.14.04.141.0.2+build2-0ubuntu0.14.04.142.0+build2-0ubuntu0.14.04.143.0+build1-0ubuntu0.14.04.143.0.4+build3-0ubuntu0.14.04.144.0+build3-0ubuntu0.14.04.144.0.1+build2-0ubuntu0.14.04.144.0.2+build1-0ubuntu0.14.04.145.0+build2-0ubuntu0.14.04.145.0.1+build1-0ubuntu0.14.04.245.0.2+build1-0ubuntu0.14.04.146.0+build5-0ubuntu0.14.04.246.0.1+build1-0ubuntu0.14.04.347.0+build3-0ubuntu0.14.04.148.0+build2-0ubuntu0.14.04.149.0+build4-0ubuntu0.14.04.149.0.2+build2-0ubuntu0.14.04.150.0+build2-0ubuntu0.14.04.250.0.2+build1-0ubuntu0.14.04.150.1.0+build2-0ubuntu0.14.04.151.0.1+build2-0ubuntu0.14.04.151.0.1+build2-0ubuntu0.14.04.2
60.0+build2-0ubuntu0.14.04.1
firefox
Ubuntu:16.04:LTS
From an advisory covering 24 CVEs
before 60.0+build2-0ubuntu0.16.04.1, plus listed versions
41.0.2+build2-0ubuntu142.0+build2-0ubuntu144.0+build3-0ubuntu244.0.1+build1-0ubuntu144.0.2+build1-0ubuntu1
Show 37 moreShow less
45.0+build2-0ubuntu145.0.1+build1-0ubuntu145.0.2+build1-0ubuntu146.0+build5-0ubuntu0.16.04.246.0.1+build1-0ubuntu0.16.04.247.0+build3-0ubuntu0.16.04.148.0+build2-0ubuntu0.16.04.149.0+build4-0ubuntu0.16.04.149.0.2+build2-0ubuntu0.16.04.250.0+build2-0ubuntu0.16.04.250.0.2+build1-0ubuntu0.16.04.150.1.0+build2-0ubuntu0.16.04.151.0.1+build2-0ubuntu0.16.04.151.0.1+build2-0ubuntu0.16.04.252.0+build2-0ubuntu0.16.04.152.0.1+build2-0ubuntu0.16.04.152.0.2+build1-0ubuntu0.16.04.153.0+build6-0ubuntu0.16.04.153.0.2+build1-0ubuntu0.16.04.253.0.3+build1-0ubuntu0.16.04.254.0+build3-0ubuntu0.16.04.155.0.1+build2-0ubuntu0.16.04.255.0.2+build1-0ubuntu0.16.04.156.0+build6-0ubuntu0.16.04.156.0+build6-0ubuntu0.16.04.257.0+build4-0ubuntu0.16.04.557.0+build4-0ubuntu0.16.04.657.0.1+build2-0ubuntu0.16.04.157.0.3+build1-0ubuntu0.16.04.157.0.4+build1-0ubuntu0.16.04.158.0+build6-0ubuntu0.16.04.158.0.1+build1-0ubuntu0.16.04.158.0.2+build1-0ubuntu0.16.04.159.0+build5-0ubuntu0.16.04.159.0.1+build1-0ubuntu0.16.04.159.0.2+build1-0ubuntu0.16.04.159.0.2+build1-0ubuntu0.16.04.3
60.0+build2-0ubuntu0.16.04.1
firefox
Ubuntu:18.04:LTS
From an advisory covering 24 CVEs
before 60.0+build2-0ubuntu1, plus listed versions
56.0+build6-0ubuntu157.0.1+build2-0ubuntu159.0.1+build1-0ubuntu159.0.2+build1-0ubuntu1
60.0+build2-0ubuntu1
MozillaFirefox
openSUSE:Tumbleweed
From an advisory covering 661 CVEs
before 92.0-1.2
92.0-1.2
firefox-esr
openSUSE:Tumbleweed
From an advisory covering 1860 CVEs
before 128.5.1-1.1
128.5.1-1.1

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-5153 is a high vulnerability (CVSS 7.5) in Mozilla Firefox, published May 11, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.65%, the 76th percentile. Fixed in firefox 60.0+build2-0ubuntu0.14.04.1.

References

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Left out here: 46 versions and 1,726 references. The JSON record has them.

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