What’s Vulnerable › Vulnerabilities
CVE-2021-36221
- Severity: medium (CVSS 5.9 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 3.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2021-08-08 · updated 2026-06-17
- Weakness: CWE-362
Description
Go before 1.15.15 and 1.16.x before 1.16.7 has a race condition that can lead to a net/http/httputil ReverseProxy panic upon an ErrAbortHandler abort.
Affected products
- Debian Linux: 9.0
- Fedoraproject Fedora: 33, 34, 35
- Go: before 1.15.15; from 1.16.0 before 1.16.7 — fixed in 1.15.15, 1.16.7
- Oracle Corporation TimesTen In-Memory Database: before 21.1.1.1.0 — fixed in 21.1.1.1.0
- Siemens SCALANCE LPE9403: before 2.0 — fixed in 2.0
How to fix
Upgrade to a fixed version: Go 1.15.15, 1.16.7; Oracle Corporation TimesTen In-Memory Database 21.1.1.1.0; Siemens SCALANCE LPE9403 2.0. Check the vendor advisory for mitigations.
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf
- https://groups.google.com/forum/#%21forum/golang-announce
- https://groups.google.com/g/golang-announce/c/JvWG9FUUYT0
- https://groups.google.com/g/golang-announce/c/uHACNfXAZqk
- https://lists.debian.org/debian-lts-announce/2022/01/msg00016.html
- https://lists.debian.org/debian-lts-announce/2022/01/msg00017.html
- https://lists.debian.org/debian-lts-announce/2023/04/msg00021.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2MU47VKTNXX33ZDLTI2ORRUY3KLJKU6G/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HM7U5JNS5WU66Q3S26PFIU2ITB2ATTQ4/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J4AMYYHGBYMIWCCR5RCDFI5RAUJOPO5L/
- https://security.gentoo.org/glsa/202208-02
- https://www.oracle.com/security-alerts/cpujan2022.html
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