CVE-2021-31525

low-risk
Published 2021-05-27

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.

Do I need to act?

-
0.02% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.9/10 Medium
NETWORK / HIGH complexity

Affected Products (2)

Go

Affected Vendors

Fedoraproject Golang

References (8)

Issue Tracking https://github.com/golang/go/issues/45710
Mailing List https://groups.google.com/g/golang-announce/c/cu9SP4eSXMc
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...
Third Party Advisory https://security.gentoo.org/glsa/202208-02
Issue Tracking https://github.com/golang/go/issues/45710
Mailing List https://groups.google.com/g/golang-announce/c/cu9SP4eSXMc
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...
Third Party Advisory https://security.gentoo.org/glsa/202208-02
25
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 7/34 · Low