CVE-2024-26774

ext4: avoid dividing by 0 in mb_update_avg_fragment_size() when block bitmap corrupt

Severity Score

5.5

*CVSS v3.1

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:

ext4: avoid dividing by 0 in mb_update_avg_fragment_size() when block bitmap corrupt

Determine if bb_fragments is 0 instead of determining bb_free to eliminate
the risk of dividing by zero when the block bitmap is corrupted.

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ext4: evitar dividir por 0 en mb_update_avg_fragment_size() cuando el mapa de bits del bloque está dañado. Determine si bb_fragments es 0 en lugar de determinar bb_free para eliminar el riesgo de dividir por cero cuando el mapa de bits del bloque está dañado.

*Credits: N/A

CVSS Scores

Red Hatv3.1 5.5

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-02-19 CVE Reserved
2024-04-03 CVE Published
2024-04-04 EPSS Updated
2024-12-19 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-369: Divide By Zero

CAPEC

References (7)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/687061cfaa2ac3095170e136dd9c29a4974f41d4	2024-03-01
https://git.kernel.org/stable/c/8b40eb2e716b503f7a4e1090815a17b1341b2150	2024-03-01
https://git.kernel.org/stable/c/f32d2a745b02123258026e105a008f474f896d6a	2024-03-01
https://git.kernel.org/stable/c/8cf9cc602cfb40085967c0d140e32691c8b71cf3	2024-03-01
https://git.kernel.org/stable/c/993bf0f4c393b3667830918f9247438a8f6fdb5b	2024-01-18

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2024-26774	2024-11-12
https://bugzilla.redhat.com/show_bug.cgi?id=2273234	2024-11-12

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"				< 5.15.150 Search vendor "Linux" for product "Linux Kernel" and version " < 5.15.150"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.1.80 Search vendor "Linux" for product "Linux Kernel" and version " < 6.1.80"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.6.19 Search vendor "Linux" for product "Linux Kernel" and version " < 6.6.19"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.7.7 Search vendor "Linux" for product "Linux Kernel" and version " < 6.7.7"		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