CVE-2021-45958
ujson - security update
5.5
MEDIUM
CVSS 3.1
EPSS 0.29%
Description
UltraJSON (aka ujson) through 5.1.0 has a stack-based buffer overflow in Buffer_AppendIndentUnchecked (called from encode). Exploitation can, for example, use a large amount of indentation.
How to fix CVE-2021-45958
To remediate CVE-2021-45958, upgrade the affected package to a fixed version below.
- Debian/ujson—no fix listed
- —upgrade to 1.35-1+deb9u1 or later
- —upgrade to 5.2.0 or later
- —upgrade to 5.1.0 or later
Is CVE-2021-45958 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- from 0
- from 0, < 1.35-1+deb9u1
- >= 1.34, < 5.2.0
- >= 4.0.2, < 5.1.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |