CVE-2023-5941
libc stdio buffer overflow
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
In versions of FreeBSD 12.4-RELEASE prior to 12.4-RELEASE-p7 and FreeBSD 13.2-RELEASE prior to 13.2-RELEASE-p5 the __sflush() stdio function in libc does not correctly update FILE objects' write space members for write-buffered streams when the write(2) system call returns an error. Depending on the nature of an application that calls libc's stdio functions and the presence of errors returned from the write(2) system call (or an overridden stdio write routine) a heap buffer overflow may occur. Such overflows may lead to data corruption or the execution of arbitrary code at the privilege level of the calling program.
En las versiones 12.4-RELEASE anteriores a 12.4-RELEASE-p7 y 13.2-RELEASE anteriores a 13.2-RELEASE-p5 de FreeBSD, la función stdio __sflush() en libc no actualiza correctamente los miembros del espacio de escritura de los objetos FILE para secuencias con búfer de escritura cuando la llamada al sistema write(2) devuelve un error. Dependiendo de la naturaleza de una aplicación que llama a las funciones stdio de libc y la presencia de errores devueltos por la llamada al sistema write(2) (o una rutina de escritura stdio anulada), puede ocurrir un desbordamiento del buffer del heap. Dichos desbordamientos pueden provocar daños en los datos o la ejecución de código arbitrario en el nivel de privilegio del programa que realiza la llamada.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2023-11-02 CVE Reserved
- 2023-11-08 CVE Published
- 2023-11-17 EPSS Updated
- 2024-08-02 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-131: Incorrect Calculation of Buffer Size
- CWE-787: Out-of-bounds Write
CAPEC
References (2)
| URL | Tag | Source |
|---|---|---|
| https://security.netapp.com/advisory/ntap-20231214-0004 |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://security.freebsd.org/advisories/FreeBSD-SA-23:15.stdio.asc | 2023-12-14 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | < 12.4 Search vendor "Freebsd" for product "Freebsd" and version " < 12.4" | - |
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| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | >= 13.0 < 13.2 Search vendor "Freebsd" for product "Freebsd" and version " >= 13.0 < 13.2" | - |
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| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 12.4 Search vendor "Freebsd" for product "Freebsd" and version "12.4" | - |
Affected
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| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 12.4 Search vendor "Freebsd" for product "Freebsd" and version "12.4" | p1 |
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| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 12.4 Search vendor "Freebsd" for product "Freebsd" and version "12.4" | p2 |
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| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 12.4 Search vendor "Freebsd" for product "Freebsd" and version "12.4" | p3 |
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| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 12.4 Search vendor "Freebsd" for product "Freebsd" and version "12.4" | p4 |
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| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 12.4 Search vendor "Freebsd" for product "Freebsd" and version "12.4" | p5 |
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| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 12.4 Search vendor "Freebsd" for product "Freebsd" and version "12.4" | p6 |
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| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 12.4 Search vendor "Freebsd" for product "Freebsd" and version "12.4" | rc2-p1 |
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| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 12.4 Search vendor "Freebsd" for product "Freebsd" and version "12.4" | rc2-p2 |
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| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 13.2 Search vendor "Freebsd" for product "Freebsd" and version "13.2" | - |
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| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 13.2 Search vendor "Freebsd" for product "Freebsd" and version "13.2" | p1 |
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| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 13.2 Search vendor "Freebsd" for product "Freebsd" and version "13.2" | p2 |
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| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 13.2 Search vendor "Freebsd" for product "Freebsd" and version "13.2" | p3 |
Affected
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| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 13.2 Search vendor "Freebsd" for product "Freebsd" and version "13.2" | p4 |
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