Vulnerability in Golang Go
CVE-2021-31525
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.037 (89.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.037 · newest: 0.037 · change: 0.000
Affected products
- Golang Go
- Fedoraproject Fedora — versions 34
Weakness classification (CWE)
Public proof-of-concept exploits
References
- groups.google.com/g/golang-announce/c/cu9SP4eSXMc (Mailing List, Third Party Advisory)
- github.com/golang/go/issues/45710 (Patch, Third Party Advisory, Issue Tracking)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- security.gentoo.org/glsa/202208-02 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-31525?
- CVE-2021-31525 is a medium-severity vulnerability in Golang Go, classified under Uncontrolled Recursion. CVSS score: 5.9/10. Published 2021-05-27.
- How severe is CVE-2021-31525?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2021-31525 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.