CVE-2023-6207: Use After Free
First published: Tue Nov 21 2023(Updated: )
Ownership mismanagement led to a use-after-free in ReadableByteStreams This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.
Credit: security@mozilla.org security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/firefox | <115.5 | 115.5 |
| redhat/thunderbird | <115.5 | 115.5 |
| ubuntu/firefox | <120.0+ | 120.0+ |
| ubuntu/thunderbird | <1:115.5.0+ | 1:115.5.0+ |
| ubuntu/thunderbird | <1:115.5.0+ | 1:115.5.0+ |
| ubuntu/thunderbird | <1:115.5.0+ | 1:115.5.0+ |
| ubuntu/thunderbird | <1:115.5.0+ | 1:115.5.0+ |
| Mozilla Thunderbird | <115.5 | 115.5 |
| Mozilla Firefox | <120 | 120 |
| Mozilla Firefox ESR | <115.5 | 115.5 |
| Mozilla Firefox | <120.0 | |
| Mozilla Firefox ESR | <115.5.0 | |
| Mozilla Thunderbird | <115.5 | |
| Debian Debian Linux | =10.0 | |
| Debian Debian Linux | =11.0 | |
| Debian Debian Linux | =12.0 | |
| debian/firefox | 123.0-1 | |
| debian/firefox-esr | <=91.12.0esr-1~deb10u1 | 115.8.0esr-1~deb10u1 115.7.0esr-1~deb11u1 115.8.0esr-1~deb11u1 115.7.0esr-1~deb12u1 115.8.0esr-1~deb12u1 115.8.0esr-1 |
| debian/thunderbird | <=1:91.12.0-1~deb10u1 | 1:115.8.0-1~deb10u1 1:115.7.0-1~deb11u1 1:115.8.0-1~deb11u1 1:115.7.0-1~deb12u1 1:115.8.0-1~deb12u1 1:115.7.0-1 1:115.8.1-1 |
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Reference Links
- https://bugzilla.mozilla.org/show_bug.cgi?id=1861344
- https://www.mozilla.org/security/advisories/mfsa2023-49/
- https://www.mozilla.org/security/advisories/mfsa2023-50/
- https://www.mozilla.org/security/advisories/mfsa2023-52/
- https://www.debian.org/security/2023/dsa-5561
- https://lists.debian.org/debian-lts-announce/2023/11/msg00017.html
- https://lists.debian.org/debian-lts-announce/2023/11/msg00030.html
- https://launchpad.net/bugs/cve/CVE-2023-6207
- https://www.mozilla.org/en-US/security/advisories/mfsa2023-49/
- https://www.mozilla.org/en-US/security/advisories/mfsa2023-50/
- https://www.mozilla.org/en-US/security/advisories/mfsa2023-52/
- https://www.mozilla.org/en-US/security/advisories/mfsa2023-50/#CVE-2023-6207
- https://access.redhat.com/errata/RHSA-2023:7499
- https://access.redhat.com/errata/RHSA-2023:7502
- https://access.redhat.com/errata/RHSA-2023:7500
- https://access.redhat.com/errata/RHSA-2023:7501
- https://access.redhat.com/errata/RHSA-2023:7504
- https://access.redhat.com/errata/RHSA-2023:7503
- https://access.redhat.com/errata/RHSA-2023:7506
- https://access.redhat.com/errata/RHSA-2023:7510
- https://access.redhat.com/errata/RHSA-2023:7507
- https://access.redhat.com/errata/RHSA-2023:7511
- https://access.redhat.com/errata/RHSA-2023:7508
- https://access.redhat.com/errata/RHSA-2023:7505
- https://access.redhat.com/errata/RHSA-2023:7509
- https://access.redhat.com/errata/RHSA-2023:7512
- https://access.redhat.com/errata/RHSA-2023:7547
- https://access.redhat.com/errata/RHSA-2023:7569
- https://access.redhat.com/errata/RHSA-2023:7570
- https://access.redhat.com/errata/RHSA-2023:7573
- https://access.redhat.com/errata/RHSA-2023:7574
- https://access.redhat.com/errata/RHSA-2023:7577
- https://bugzilla.redhat.com/show_bug.cgi?id=2250899
- https://www.mozilla.org/en-US/security/advisories/mfsa2023-49/#CVE-2023-6207
- https://www.mozilla.org/en-US/security/advisories/mfsa2023-52/#CVE-2023-6207
- https://security-tracker.debian.org/tracker/CVE-2023-6207
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6207
- https://ubuntu.com/security/notices/USN-6509-1
- https://ubuntu.com/security/notices/USN-6515-1
- https://nvd.nist.gov/vuln/detail/CVE-2023-6207
- https://ubuntu.com/security/CVE-2023-6207
Parent vulnerabilities
(Appears in the following advisories)
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is CVE-2023-6207?
CVE-2023-6207 is a vulnerability in ReadableByteStreams in Firefox and Thunderbird that is caused by ownership mismanagement and can lead to a use-after-free scenario.
Which software versions are affected by CVE-2023-6207?
This vulnerability affects Firefox versions earlier than 120, Firefox versions earlier than 115.5, and Thunderbird versions earlier than 115.5.0.
What is the severity of CVE-2023-6207?
The severity of CVE-2023-6207 is high, with a CVSS score of 7.
How can I fix CVE-2023-6207?
To fix CVE-2023-6207, update your Firefox or Thunderbird to version 115.5.0 or higher.
Where can I find more information about CVE-2023-6207?
You can find more information about CVE-2023-6207 in the following references: [1] [2] [3]
- collector/mitre-cve
- agent/author
- agent/type
- agent/last-modified-date
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2023-6207
- agent/software-canonical-lookup
- agent/references
- agent/severity
- agent/description
- collector/usn-cve
- source/Ubuntu
- collector/mozilla-advisory
- source/Mozilla
- agent/event
- collector/epss-latest
- source/FIRST
- agent/epss
- agent/weakness
- agent/softwarecombine
- agent/software-canonical-lookup-request
- collector/nvd-api
- collector/nvd-cve
- source/NVD
- agent/tags
- collector/security-tracker-debian
- source/Debian
- package-manager/redhat
- package-manager/ubuntu
- vendor/mozilla
- canonical/mozilla thunderbird
- canonical/mozilla firefox
- canonical/mozilla firefox esr
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/10.0
- version/debian debian linux/11.0
- version/debian debian linux/12.0
- package-manager/debian