CVE-2024-26791

btrfs: dev-replace: properly validate device names

Severity Score

"-"

*CVSS v-

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

In the Linux kernel, the following vulnerability has been resolved:

btrfs: dev-replace: properly validate device names

There's a syzbot report that device name buffers passed to device
replace are not properly checked for string termination which could lead
to a read out of bounds in getname_kernel().

Add a helper that validates both source and target device name buffers.
For devid as the source initialize the buffer to empty string in case
something tries to read it later.

This was originally analyzed and fixed in a different way by Edward Adam
Davis (see links).

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: btrfs: dev-replace: validar correctamente los nombres de los dispositivos. Hay un informe de syzbot que indica que los búferes de nombres de dispositivos pasados para reemplazar el dispositivo no se verifican adecuadamente para determinar la terminación de la cadena, lo que podría provocar una lectura fuera de los límites. en getname_kernel(). Agregue un asistente que valide los búferes de nombres de dispositivos de origen y de destino. Para devid como fuente, inicialice el búfer en una cadena vacía en caso de que algo intente leerlo más tarde. Esto fue originalmente analizado y solucionado de una manera diferente por Edward Adam Davis (ver enlaces).

*Credits: N/A

CVSS Scores

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-02-19 CVE Reserved
2024-04-04 CVE Published
2024-12-19 CVE Updated
2024-12-21 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (10)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/11d7a2e429c02d51e2dc90713823ea8b8d3d3a84	2024-03-06
https://git.kernel.org/stable/c/c6652e20d7d783d060fe5f987eac7b5cabe31311	2024-03-06
https://git.kernel.org/stable/c/2886fe308a83968dde252302884a1e63351cf16d	2024-03-06
https://git.kernel.org/stable/c/ab2d68655d0f04650bef09fee948ff80597c5fb9	2024-03-06
https://git.kernel.org/stable/c/f590040ce2b712177306b03c2a63b16f7d48d3c8	2024-03-06
https://git.kernel.org/stable/c/b1690ced4d2d8b28868811fb81cd33eee5aefee1	2024-03-06
https://git.kernel.org/stable/c/343eecb4ff49a7b1cc1dfe86958a805cf2341cfb	2024-03-06
https://git.kernel.org/stable/c/9845664b9ee47ce7ee7ea93caf47d39a9d4552c4	2024-02-22

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"				< 4.19.309 Search vendor "Linux" for product "Linux Kernel" and version " < 4.19.309"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.4.271 Search vendor "Linux" for product "Linux Kernel" and version " < 5.4.271"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.10.212 Search vendor "Linux" for product "Linux Kernel" and version " < 5.10.212"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.15.151 Search vendor "Linux" for product "Linux Kernel" and version " < 5.15.151"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.1.81 Search vendor "Linux" for product "Linux Kernel" and version " < 6.1.81"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.6.21 Search vendor "Linux" for product "Linux Kernel" and version " < 6.6.21"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.7.9 Search vendor "Linux" for product "Linux Kernel" and version " < 6.7.9"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.8 Search vendor "Linux" for product "Linux Kernel" and version " < 6.8"		en		Affected