CVE-2021-44717
golang: syscall: don't close fd 0 on ForkExec error
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
Go before 1.16.12 and 1.17.x before 1.17.5 on UNIX allows write operations to an unintended file or unintended network connection as a consequence of erroneous closing of file descriptor 0 after file-descriptor exhaustion.
Go versiones anteriores a 1.16.12 y versiones 1.17.x anteriores a 1.17.5 en UNIX, permite operaciones de escritura en un archivo no deseado o en una conexión de red no deseada como consecuencia de un cierre erróneo del descriptor de archivo 0 tras el agotamiento del descriptor de archivo.
There's a flaw in golang's syscall.ForkExec() interface. An attacker who manages to first cause a file descriptor exhaustion for the process, then cause syscall.ForkExec() to be called repeatedly, could compromise data integrity and/or confidentiality in a somewhat uncontrolled way in programs linked with and using syscall.ForkExec().
CVSS Scores
SSVC
- Decision:-
Timeline
- 2021-12-07 CVE Reserved
- 2021-12-16 CVE Published
- 2024-08-04 CVE Updated
- 2024-09-16 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
- CWE-404: Improper Resource Shutdown or Release
CAPEC
References (8)
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://groups.google.com/g/golang-announce/c/hcmEScgc00k | 2023-08-08 |
| URL | Date | SRC |
|---|---|---|
| https://security.gentoo.org/glsa/202208-02 | 2023-08-08 | |
| https://access.redhat.com/security/cve/CVE-2021-44717 | 2023-01-25 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2030806 | 2023-01-25 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Golang Search vendor "Golang" | Go Search vendor "Golang" for product "Go" | < 1.16.12 Search vendor "Golang" for product "Go" and version " < 1.16.12" | - |
Affected
| in | Opengroup Search vendor "Opengroup" | Unix Search vendor "Opengroup" for product "Unix" | - | - |
Safe
|
| Golang Search vendor "Golang" | Go Search vendor "Golang" for product "Go" | >= 1.17.0 < 1.17.5 Search vendor "Golang" for product "Go" and version " >= 1.17.0 < 1.17.5" | - |
Affected
| in | Opengroup Search vendor "Opengroup" | Unix Search vendor "Opengroup" for product "Unix" | - | - |
Safe
|
| 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
| ||||||