CVE-2020-6514: Infoleak

Published Jul 15, 2020
·
Updated

Inappropriate implementation in WebRTC in Google Chrome prior to 84.0.4147.89 allowed an attacker in a privileged network position to potentially exploit heap corruption via a crafted SCTP stream.

Other sources

WebRTC used the memory address of a class instance as a connection identifier. Unfortunately, this value is often transmitted to the peer, which allows bypassing ASLR.

— Mozilla

WebRTC. A memory corruption issue was addressed with improved state management.

Credit

natashenka(Google Project Zero)

Affected Software

61 affected componentsFixes available
Apple tvOS<13.4.8
13.4.8
Apple WatchOS<6.2.8
6.2.8
Mozilla Thunderbird<78.1
78.1
Mozilla Thunderbird<68.11
68.11
Mozilla Firefox<79
79
Mozilla Firefox ESR<68.11
68.11
Mozilla Firefox ESR<78.1
78.1
Apple Safari<13.1.2
13.1.2
Apple iOS<13.6
13.6
Apple iPadOS<13.6
13.6
Google Chrome<84.0.4147.89
openSUSE Backports SLE=15.0-sp1
openSUSE Backports SLE=15.0-sp2
openSUSE Leap=15.1
openSUSE Leap=15.2
Fedoraproject Fedora=31
Fedoraproject Fedora=32
Debian Debian Linux=9.0
Debian Debian Linux=10.0
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=20.04
Apple Safari<13.1.2
Apple iPadOS<13.6
Apple iPhone OS<13.6
Apple tvOS<13.4.8
Apple WatchOS<6.2.8
debian/chromium
120.0.6099.224-1~deb11u1143.0.7499.169-1~deb12u1146.0.7680.71-1~deb12u1143.0.7499.169-1~deb13u1146.0.7680.71-1~deb13u1145.0.7632.159-1146.0.7680.71-1
debian/firefox
148.0.2-1
debian/firefox-esr
115.14.0esr-1~deb11u1140.8.0esr-1~deb11u1128.14.0esr-1~deb12u1140.8.0esr-1~deb12u1140.4.0esr-1~deb13u1140.8.0esr-1~deb13u1140.8.0esr-1
debian/thunderbird
1:115.12.0-1~deb11u11:140.8.0esr-1~deb11u11:140.6.0esr-1~deb12u11:140.8.0esr-1~deb12u11:140.6.0esr-1~deb13u11:140.8.0esr-1~deb13u11:140.8.0esr-1
alpine/firefox<79.0-r0
79.0-r0
alpine/firefox<79.0-r0
79.0-r0
alpine/firefox<79.0-r0
79.0-r0
alpine/firefox<79.0-r0
79.0-r0
alpine/firefox<79.0-r0
79.0-r0
alpine/firefox<79.0-r0
79.0-r0
alpine/firefox<79.0-r0
79.0-r0
alpine/firefox<79.0-r0
79.0-r0
alpine/firefox<79.0-r0
79.0-r0
alpine/firefox<79.0-r0
79.0-r0
alpine/firefox<79.0-r0
79.0-r0
alpine/firefox<79.0-r0
79.0-r0
alpine/firefox-esr<68.11.0-r0
68.11.0-r0
alpine/firefox-esr<78.1.0-r0
78.1.0-r0
alpine/firefox-esr<78.1.0-r0
78.1.0-r0
alpine/firefox-esr<78.1.0-r0
78.1.0-r0
alpine/firefox-esr<78.1.0-r0
78.1.0-r0
alpine/firefox-esr<78.1.0-r0
78.1.0-r0
alpine/firefox-esr<78.1.0-r0
78.1.0-r0
alpine/firefox-esr<78.1.0-r0
78.1.0-r0
alpine/firefox-esr<78.1.0-r0
78.1.0-r0
alpine/firefox-esr<78.1.0-r0
78.1.0-r0
alpine/firefox-esr<78.1.0-r0
78.1.0-r0
alpine/firefox-esr<78.1.0-r0
78.1.0-r0
alpine/firefox-esr<78.1.0-r0
78.1.0-r0
alpine/librewolf<79.0-r0
79.0-r0
alpine/librewolf<79.0-r0
79.0-r0
alpine/librewolf<79.0-r0
79.0-r0
alpine/librewolf<79.0-r0
79.0-r0
alpine/mozjs68<68.11.0-r0
68.11.0-r0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade tvOS to a version that resolves this vulnerability.

    Fixed in 13.4.8
  2. Upgrade

    Upgrade Apple iOS, iPadOS, and watchOS to a version that resolves this vulnerability.

    Fixed in 6.2.8
  3. Upgrade

    Upgrade Thunderbird to a version that resolves this vulnerability.

    Fixed in 78.1
  4. Upgrade

    Upgrade Thunderbird to a version that resolves this vulnerability.

    Fixed in 68.11
  5. Upgrade

    Upgrade Firefox to a version that resolves this vulnerability.

    Fixed in 79
  6. Upgrade

    Upgrade Firefox ESR to a version that resolves this vulnerability.

    Fixed in 68.11
  7. Upgrade

    Upgrade Firefox ESR to a version that resolves this vulnerability.

    Fixed in 78.1
  8. Upgrade

    Upgrade Safari to a version that resolves this vulnerability.

    Fixed in 13.1.2
  9. Upgrade

    Upgrade Apple iOS and iPadOS to a version that resolves this vulnerability.

    Fixed in 13.6
  10. Upgrade

    Upgrade Apple iOS, iPadOS, and macOS to a version that resolves this vulnerability.

    Fixed in 13.6
  11. Upgrade

    Upgrade debian/chromium to a version that resolves this vulnerability.

    Fixed in 120.0.6099.224-1~deb11u1Fixed in 143.0.7499.169-1~deb12u1Fixed in 146.0.7680.71-1~deb12u1Fixed in 143.0.7499.169-1~deb13u1Fixed in 146.0.7680.71-1~deb13u1Fixed in 145.0.7632.159-1Fixed in 146.0.7680.71-1
  12. Upgrade

    Upgrade debian/firefox to a version that resolves this vulnerability.

    Fixed in 148.0.2-1
  13. Upgrade

    Upgrade debian/firefox-esr to a version that resolves this vulnerability.

    Fixed in 115.14.0esr-1~deb11u1Fixed in 140.8.0esr-1~deb11u1Fixed in 128.14.0esr-1~deb12u1Fixed in 140.8.0esr-1~deb12u1Fixed in 140.4.0esr-1~deb13u1Fixed in 140.8.0esr-1~deb13u1Fixed in 140.8.0esr-1
  14. Upgrade

    Upgrade debian/thunderbird to a version that resolves this vulnerability.

    Fixed in 1:115.12.0-1~deb11u1Fixed in 1:140.8.0esr-1~deb11u1Fixed in 1:140.6.0esr-1~deb12u1Fixed in 1:140.8.0esr-1~deb12u1Fixed in 1:140.6.0esr-1~deb13u1Fixed in 1:140.8.0esr-1~deb13u1Fixed in 1:140.8.0esr-1
  15. Upgrade

    Upgrade alpine/firefox to a version that resolves this vulnerability.

    Fixed in 79.0-r0
  16. Upgrade

    Upgrade alpine/firefox-esr to a version that resolves this vulnerability.

    Fixed in 68.11.0-r0
  17. Upgrade

    Upgrade alpine/firefox-esr to a version that resolves this vulnerability.

    Fixed in 78.1.0-r0
  18. Upgrade

    Upgrade alpine/librewolf to a version that resolves this vulnerability.

    Fixed in 79.0-r0
  19. Upgrade

    Upgrade alpine/mozjs68 to a version that resolves this vulnerability.

    Fixed in 68.11.0-r0
  20. Upgrade

    Upgrade Google Chrome to a version that resolves this vulnerability.

    Fixed in 84.0.4147.89

Event History

Jul 22, 2020
CVE Published
via MITRE·04:16 PM
Data Sourced
via MITRE·04:16 PM
DescriptionWeakness
Data Sourced
via NVD·05:15 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·05:15 PM
DescriptionSeverityAffected Software
Aug 9, 2020
Exploit Published
via GitHub·08:06 PM

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is CVE-2020-6514?

CVE-2020-6514 is a memory corruption issue in WebRTC that allows bypassing ASLR.

2

What software is affected by CVE-2020-6514?

The affected software includes Mozilla Firefox ESR (version up to 68.11), Apple iOS (version up to 13.6), Apple iPadOS (version up to 13.6), Apple Safari (version up to 13.1.2), Apple watchOS (version up to 6.2.8), Apple tvOS (version up to 13.4.8), Mozilla Thunderbird (version up to 78.1), Mozilla Firefox (version up to 79).

3

What is the severity of CVE-2020-6514?

CVE-2020-6514 has a severity rating of high, with a severity score of 7.

4

How can I fix the vulnerability CVE-2020-6514?

To fix CVE-2020-6514, you should update your software to the latest available version provided by the vendor.

5

Where can I find more information about CVE-2020-6514?

You can find more information about CVE-2020-6514 in the following references: [1] [2] [3].

Company

Resources

Contact

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