cbcvebase.
CVE-2022-28281
published 2022-12-22

CVE-2022-28281: If a compromised content process sent an unexpected number of WebAuthN Extensions in a Register command to the parent process, an out of bounds write would…

PriorityP277high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
ITWEXPLOITVulnCheck KEV
Exploited in the wild
EPSS
2.56%
83.1th percentile
If a compromised content process sent an unexpected number of WebAuthN Extensions in a Register command to the parent process, an out of bounds write would have occurred leading to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 91.8, Firefox < 99, and Firefox ESR < 91.8.

Affected

18 ranges
VendorProductVersion rangeFixed in
debianfirefox< firefox 99.0-1 (sid)firefox 99.0-1 (sid)
debianfirefox-esr< firefox 99.0-1 (sid)firefox 99.0-1 (sid)
debianthunderbird< firefox 99.0-1 (sid)firefox 99.0-1 (sid)
mozillafirefox< 99.099.0
mozillafirefox
mozillafirefox>= 0 < 99.0+build2-0ubuntu0.18.04.299.0+build2-0ubuntu0.18.04.2
mozillafirefox>= 0 < 99.0+build2-0ubuntu0.20.04.299.0+build2-0ubuntu0.20.04.2
mozillafirefox>= unspecified < 9999
mozillafirefox_esr< 91.891.8
mozillafirefox_esr>= unspecified < 91.891.8
mozillathunderbird< 91.891.8
mozillathunderbird>= 0 < 1:91.8.0-1~deb11u11:91.8.0-1~deb11u1
mozillathunderbird>= 0 < 1:91.8.0-11:91.8.0-1
mozillathunderbird>= 0 < 1:91.8.0-11:91.8.0-1
mozillathunderbird>= 0 < 1:91.8.0-11:91.8.0-1
mozillathunderbird>= 0 < 1:91.8.1+build1-0ubuntu0.18.04.11:91.8.1+build1-0ubuntu0.18.04.1
mozillathunderbird>= 0 < 1:91.8.1+build1-0ubuntu0.20.04.11:91.8.1+build1-0ubuntu0.20.04.1
mozillathunderbird>= unspecified < 91.891.8

Detection & IOCsextracted from sources · hover to see the quote

  • Vulnerability is triggered when a compromised content process sends an unexpected number of WebAuthN Extensions in a Register command to the parent process, resulting in an out-of-bounds write and memory corruption
  • Attack vector is local/inter-process (compromised content process to parent process); monitor for anomalous IPC messages involving WebAuthN Register commands with malformed extension counts
  • ·Affected versions: Thunderbird < 91.8, Firefox < 99, Firefox ESR < 91.8. Fixed in Thunderbird 91.8, Firefox 99, Firefox ESR 91.8.
  • ·Red Hat Enterprise Linux 9 packages for both Firefox and Thunderbird are listed as Not Affected; RHEL 6 packages are out of support scope.
  • ·Debian sid resolved the issue with firefox version 99.0-1.

CVSS provenance

nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
osv8.8HIGH
vulncheck8.8HIGH
vendor_debian8.8HIGH
vendor_redhat8.8HIGH
vendor_ubuntu6.5MEDIUM
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