Vulnerability in Golang Go
CVE-2021-36221
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.
Vulnerability class: Race Condition
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: 0.031 (87.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.031 · newest: 0.031 · change: -0.000
Affected products
- Golang Go
- Oracle Timesten In-Memory Database
- Siemens Scalance Lpe9403
- Siemens Scalance Lpe9403 Firmware
- Debian Linux — versions 9.0
- Fedoraproject Fedora — versions 33, 34, 35
Weakness classification (CWE)
Public proof-of-concept exploits
References
- groups.google.com/forum/
- groups.google.com/g/golang-announce/c/JvWG9FUUYT0 (Mailing List, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- www.oracle.com/security-alerts/cpujan2022.html (Third Party Advisory)
- groups.google.com/g/golang-announce/c/uHACNfXAZqk (Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2022/01/msg00016.html (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2022/01/msg00017.html (mailing-list, Mailing List, Third Party Advisory)
- cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-36221?
- CVE-2021-36221 is a medium-severity vulnerability in Golang Go, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 5.9/10. Published 2021-08-08.
- How severe is CVE-2021-36221?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2021-36221 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.