CVE-2024-26926
binder: check offset alignment in binder_get_object()
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
In the Linux kernel, the following vulnerability has been resolved:
binder: check offset alignment in binder_get_object()
Commit 6d98eb95b450 ("binder: avoid potential data leakage when copying
txn") introduced changes to how binder objects are copied. In doing so,
it unintentionally removed an offset alignment check done through calls
to binder_alloc_copy_from_buffer() -> check_buffer().
These calls were replaced in binder_get_object() with copy_from_user(),
so now an explicit offset alignment check is needed here. This avoids
later complications when unwinding the objects gets harder.
It is worth noting this check existed prior to commit 7a67a39320df
("binder: add function to copy binder object from buffer"), likely
removed due to redundancy at the time.
En el kernel de Linux, se resolvió la siguiente vulnerabilidad: Binder: verifique la alineación de desplazamiento en binder_get_object() El commit 6d98eb95b450 ("binder: evite posibles fugas de datos al copiar txn") introdujo cambios en la forma en que se copian los objetos de Binder. Al hacerlo, eliminó involuntariamente una verificación de alineación de desplazamiento realizada mediante llamadas a binder_alloc_copy_from_buffer() -> check_buffer(). Estas llamadas fueron reemplazadas en binder_get_object() con copy_from_user(), por lo que ahora se necesita aquí una verificación explícita de alineación de desplazamiento. Esto evita complicaciones posteriores cuando el desenrollado de los objetos se vuelve más difícil. Vale la pena señalar que esta verificación existía antes de el commit 7a67a39320df ("carpeta: agregar función para copiar el objeto de carpeta del búfer"), probablemente eliminada debido a la redundancia en ese momento.
CVSS Scores
SSVC
- Decision:Track*
Timeline
- 2024-02-19 CVE Reserved
- 2024-04-24 CVE Published
- 2024-05-03 EPSS Updated
- 2024-12-19 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (13)
URL | Date | SRC |
---|
URL | Date | SRC |
---|
Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.4.226 < 5.4.275 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.4.226 < 5.4.275" | en |
Affected
| ||||||
Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.10.157 < 5.10.216 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10.157 < 5.10.216" | en |
Affected
| ||||||
Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.15.17 < 5.15.157 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.15.17 < 5.15.157" | en |
Affected
| ||||||
Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.17 < 6.1.88 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.17 < 6.1.88" | en |
Affected
| ||||||
Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.17 < 6.6.29 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.17 < 6.6.29" | en |
Affected
| ||||||
Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.17 < 6.8.8 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.17 < 6.8.8" | en |
Affected
| ||||||
Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.17 < 6.9 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.17 < 6.9" | en |
Affected
| ||||||
Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 5.16.3 Search vendor "Linux" for product "Linux Kernel" and version "5.16.3" | en |
Affected
|