CVE-2022-22747
nss - security update
6.5
MEDIUM
CVSS 3.1
EPSS 0.34%
Description
After accepting an untrusted certificate, handling an empty pkcs7 sequence as part of the certificate data could have lead to a crash. This crash is believed to be unexploitable. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.
How to fix CVE-2022-22747
To remediate CVE-2022-22747, upgrade the affected package to a fixed version below.
- —upgrade to 91.5.0esr-1~deb11u1 or later
- —upgrade to 2:3.61-1+deb11u2 or later
- —upgrade to 2:3.26.2-1.1+deb9u5 or later
- —upgrade to 2:3.42.1-1+deb10u5 or later
- —upgrade to 1:91.5.0-2~deb11u1 or later
Is CVE-2022-22747 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (5)
- from 0, < 91.5.0esr-1~deb11u1
- from 0, < 2:3.61-1+deb11u2
- from 0, < 2:3.26.2-1.1+deb9u5
- from 0, < 2:3.42.1-1+deb10u5
- from 0, < 1:91.5.0-2~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |