CVE-2024-43854
block: initialize integrity buffer to zero before writing it to media
Severity Score
5.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Track
*SSVC
Descriptions
In the Linux kernel, the following vulnerability has been resolved:
block: initialize integrity buffer to zero before writing it to media
Metadata added by bio_integrity_prep is using plain kmalloc, which leads
to random kernel memory being written media. For PI metadata this is
limited to the app tag that isn't used by kernel generated metadata,
but for non-PI metadata the entire buffer leaks kernel memory.
Fix this by adding the __GFP_ZERO flag to allocations for writes.
*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
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2024-08-17 CVE Reserved
- 2024-08-17 CVE Published
- 2024-08-23 EPSS Updated
- 2024-11-05 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-401: Missing Release of Memory after Effective Lifetime
CAPEC
References (11)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/7ba1ba12eeef0aa7113beb16410ef8b7c748e18b | Vuln. Introduced |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2024-43854 | 2024-11-05 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2305512 | 2024-11-05 |
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" | >= 2.6.27 < 4.19.322 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.27 < 4.19.322" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.27 < 5.4.284 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.27 < 5.4.284" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.27 < 5.10.226 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.27 < 5.10.226" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.27 < 5.15.165 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.27 < 5.15.165" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.27 < 6.1.103 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.27 < 6.1.103" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.27 < 6.6.44 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.27 < 6.6.44" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.27 < 6.10.3 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.27 < 6.10.3" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.27 < 6.11 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.27 < 6.11" | en |
Affected
| ||||||