CVE-2023-6856: Buffer Overflow
First published: Tue Dec 19 2023(Updated: )
The WebGL `DrawElementsInstanced` method was susceptible to a heap buffer overflow when used on systems with the Mesa VM driver. This issue could allow an attacker to perform remote code execution and sandbox escape. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.
Credit: security@mozilla.org security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mozilla Thunderbird | <115.6 | 115.6 |
| Mozilla Firefox ESR | <115.6 | 115.6 |
| redhat/firefox | <115.6 | 115.6 |
| redhat/thunderbird | <115.6 | 115.6 |
| Mozilla Firefox | <121 | 121 |
| Mozilla Firefox | <121.0 | |
| Mozilla Firefox ESR | <115.6 | |
| Mozilla Thunderbird | <115.6 | |
| Debian Debian Linux | =10.0 | |
| Debian Debian Linux | =11.0 | |
| Debian Debian Linux | =12.0 | |
| ubuntu/firefox | <121.0+ | 121.0+ |
| ubuntu/thunderbird | <1:115.6.0+ | 1:115.6.0+ |
| ubuntu/thunderbird | <1:115.6.0+ | 1:115.6.0+ |
| ubuntu/thunderbird | <1:115.6.0+ | 1:115.6.0+ |
| ubuntu/thunderbird | <1:115.6.0+ | 1:115.6.0+ |
| ubuntu/thunderbird | <1:115.6.0+ | 1:115.6.0+ |
| debian/firefox | 125.0.3-1 | |
| debian/firefox-esr | <=91.12.0esr-1~deb10u1 | 115.10.0esr-1~deb10u1 115.7.0esr-1~deb11u1 115.10.0esr-1~deb11u1 115.7.0esr-1~deb12u1 115.10.0esr-1~deb12u1 115.10.0esr-1 |
| debian/thunderbird | <=1:91.12.0-1~deb10u1 | 1:115.10.1-1~deb10u1 1:115.7.0-1~deb11u1 1:115.10.1-1~deb11u1 1:115.7.0-1~deb12u1 1:115.10.1-1~deb12u1 1:115.10.1-1 |
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Reference Links
- https://bugzilla.mozilla.org/show_bug.cgi?id=1843782
- https://www.mozilla.org/security/advisories/mfsa2023-54/
- https://www.mozilla.org/security/advisories/mfsa2023-55/
- https://www.mozilla.org/security/advisories/mfsa2023-56/
- https://www.debian.org/security/2023/dsa-5581
- https://www.debian.org/security/2023/dsa-5582
- https://lists.debian.org/debian-lts-announce/2023/12/msg00020.html
- https://lists.debian.org/debian-lts-announce/2023/12/msg00021.html
- https://security.gentoo.org/glsa/202401-10
- https://launchpad.net/bugs/cve/CVE-2023-6856
- https://www.mozilla.org/en-US/security/advisories/mfsa2023-55/
- https://www.mozilla.org/en-US/security/advisories/mfsa2023-54/
- https://www.mozilla.org/en-US/security/advisories/mfsa2023-54/#CVE-2023-6856
- https://access.redhat.com/errata/RHSA-2024:0001
- https://access.redhat.com/errata/RHSA-2024:0002
- https://access.redhat.com/errata/RHSA-2024:0004
- https://access.redhat.com/errata/RHSA-2024:0005
- https://access.redhat.com/errata/RHSA-2024:0012
- https://access.redhat.com/errata/RHSA-2024:0011
- https://access.redhat.com/errata/RHSA-2024:0019
- https://access.redhat.com/errata/RHSA-2024:0025
- https://access.redhat.com/errata/RHSA-2024:0021
- https://access.redhat.com/errata/RHSA-2024:0024
- https://access.redhat.com/errata/RHSA-2024:0022
- https://access.redhat.com/errata/RHSA-2024:0003
- https://access.redhat.com/errata/RHSA-2024:0023
- https://access.redhat.com/errata/RHSA-2024:0026
- https://access.redhat.com/errata/RHSA-2024:0028
- https://access.redhat.com/errata/RHSA-2024:0030
- https://access.redhat.com/errata/RHSA-2024:0029
- https://access.redhat.com/errata/RHSA-2024:0027
- https://bugzilla.redhat.com/show_bug.cgi?id=2255360
- https://www.mozilla.org/en-US/security/advisories/mfsa2023-56/
- https://www.mozilla.org/en-US/security/advisories/mfsa2023-56/#CVE-2023-6856
- https://www.mozilla.org/en-US/security/advisories/mfsa2023-55/#CVE-2023-6856
- https://security-tracker.debian.org/tracker/CVE-2023-6856
- https://ubuntu.com/security/notices/USN-6562-1
- https://ubuntu.com/security/notices/USN-6563-1
- https://www.cve.org/CVERecord?id=CVE-2023-6856
- https://nvd.nist.gov/vuln/detail/CVE-2023-6856
- https://ubuntu.com/security/CVE-2023-6856
Parent vulnerabilities
(Appears in the following advisories)
Peer vulnerabilities
(Found alongside the following vulnerabilities)
- collector/mitre-cve
- source/MITRE
- collector/launchpad-cve
- source/Launchpad
- agent/type
- agent/author
- agent/first-publish-date
- agent/severity
- agent/weakness
- collector/mozilla-advisory
- source/Mozilla
- agent/software-canonical-lookup
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2023-6856
- agent/description
- collector/epss-latest
- source/FIRST
- agent/epss
- agent/last-modified-date
- agent/software-canonical-lookup-request
- collector/nvd-api
- source/NVD
- collector/nvd-cve
- agent/event
- agent/references
- agent/tags
- agent/softwarecombine
- collector/usn-cve
- source/Ubuntu
- collector/security-tracker-debian
- source/Debian
- vendor/mozilla
- canonical/mozilla thunderbird
- canonical/mozilla firefox esr
- package-manager/redhat
- canonical/mozilla firefox
- 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/ubuntu
- package-manager/debian