Information exposure in Linux kernel



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2004-2136
CWE-ID CWE-200
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Information exposure

EUVDB-ID: #VU99952

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2004-2136

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

dm-crypt on Linux kernel 2.6.x, when used on certain file systems with a block size 1024 or greater, has certain 'IV computation' weaknesses that allow watermarked files to be detected without decryption.

Mitigation

Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

CPE2.3 External links

https://marc.info/?l=linux-kernel&m=107719798631935&w=2
https://mareichelt.de/pub/notmine/diskenc.pdf
https://www.securiteam.com/exploits/5UP0P1PFPM.html


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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