CVE-2021-31525
Panic due to large headers in net/http and golang.org/x/net/http/httpguts
5.9
MEDIUM
CVSS 3.1
EPSS 0.02%
Description
net/http in Go before 1.15.12 and 1.16.x before 1.16.4 allows remote attackers to cause a denial of service (panic) via a large header to ReadRequest or ReadResponse. Server, Transport, and Client can each be affected in some configurations.
How to fix CVE-2021-31525
To remediate CVE-2021-31525, upgrade the affected package to a fixed version below.
- —upgrade to 1.15.12 or later
- —upgrade to 1.15.9-2 or later
- —upgrade to 1:0.0+git20210119.5f4716e+dfsg-3 or later
- —upgrade to 0.0.0-20210428140749-89ef3d95e781 or later
- —upgrade to 0.0.0-20210428140749-89ef3d95e781 or later
- —upgrade to 1.15.12 or later
Is CVE-2021-31525 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (6)
- from 0, < 1.15.12, >= 1.16.0, < 1.16.4
- from 0, < 1.15.9-2
- from 0, < 1:0.0+git20210119.5f4716e+dfsg-3
- from 0, < 0.0.0-20210428140749-89ef3d95e781
- from 0, < 0.0.0-20210428140749-89ef3d95e781
- from 0, < 1.15.12, >= 1.16.0-0, < 1.16.4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |