CVE-2021-36221
golang: net/http/httputil: panic due to racy read of persistConn after handler panic
Severity Score
5.9
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
Go versiones anteriores a 1.15.15 y 1.16.x versiones anteriores a 1.16.7, presenta una condición de carrera que puede conllevar un pánico de net/http/httputil ReverseProxy al abortar ErrAbortHandler
A race condition flaw was found in Go. The incoming requests body weren't closed after the handler panic and as a consequence this could lead to ReverseProxy crash. The highest threat from this vulnerability is to Availability.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-07-07 CVE Reserved
- 2021-08-08 CVE Published
- 2024-08-04 CVE Updated
- 2024-09-10 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CAPEC
References (14)
| URL | Tag | Source |
|---|---|---|
| https://groups.google.com/forum/#%21forum/golang-announce | ||
| https://groups.google.com/g/golang-announce/c/JvWG9FUUYT0 | Mailing List | |
| https://groups.google.com/g/golang-announce/c/uHACNfXAZqk | Mailing List | |
| https://lists.debian.org/debian-lts-announce/2022/01/msg00016.html | Mailing List |
|
| https://lists.debian.org/debian-lts-announce/2022/01/msg00017.html | Mailing List |
|
| https://lists.debian.org/debian-lts-announce/2023/04/msg00021.html | Mailing List |
|
| https://www.oracle.com/security-alerts/cpujan2022.html | Third Party Advisory |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf | 2023-11-07 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Siemens Search vendor "Siemens" | Scalance Lpe9403 Firmware Search vendor "Siemens" for product "Scalance Lpe9403 Firmware" | < 2.0 Search vendor "Siemens" for product "Scalance Lpe9403 Firmware" and version " < 2.0" | - |
Affected
| in | Siemens Search vendor "Siemens" | Scalance Lpe9403 Search vendor "Siemens" for product "Scalance Lpe9403" | - | - |
Safe
|
| Golang Search vendor "Golang" | Go Search vendor "Golang" for product "Go" | < 1.15.15 Search vendor "Golang" for product "Go" and version " < 1.15.15" | - |
Affected
| ||||||
| Golang Search vendor "Golang" | Go Search vendor "Golang" for product "Go" | >= 1.16.0 < 1.16.7 Search vendor "Golang" for product "Go" and version " >= 1.16.0 < 1.16.7" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 33 Search vendor "Fedoraproject" for product "Fedora" and version "33" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 34 Search vendor "Fedoraproject" for product "Fedora" and version "34" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 35 Search vendor "Fedoraproject" for product "Fedora" and version "35" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Timesten In-memory Database Search vendor "Oracle" for product "Timesten In-memory Database" | < 21.1.1.1.0 Search vendor "Oracle" for product "Timesten In-memory Database" and version " < 21.1.1.1.0" | - |
Affected
| ||||||