CVE-2004-2136 — 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

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LOW

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

Published Jun 1, 2005

2.1

LOW

CVSS 2.0

EPSS 0.52%

Description

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.

Affected products

Remediation

No remediation recorded yet.

Metrics

0.52% 0.00517

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00517

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (10 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.52% (0.00517)	41.85th	v5 (v2026.06.15)
Jun 15, 2026	0.52% (0.00517)	39.65th	v5 (v2026.06.15)
Mar 17, 2025	0.07% (0.00070)	18.80th	v4 (v2025.03.14)
Dec 12, 2024	0.07% (0.00065)	30.56th	v3 (v2023.03.01)
Jun 14, 2024	0.07% (0.00065)	28.55th	v3 (v2023.03.01)
Mar 7, 2023	0.07% (0.00065)	26.54th	v3 (v2023.03.01)
Mar 6, 2023	0.89% (0.00890)	30.33th	v2 (v2022.01.01)
Sep 10, 2022	0.89% (0.00890)	28.64th	v2 (v2022.01.01)
Apr 1, 2022	0.89% (0.00890)	26.62th	v2 (v2022.01.01)
Feb 4, 2022	0.89% (0.00890)	12.04th	v2 (v2022.01.01)

Weaknesses (0)

No CWE recorded.

References (3)

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

Link	Providers	Tags
http://marc.info/?l=linux-kernel&m=107719798631935&w=2		mailing-listx_refsource_MLIST
http://mareichelt.de/pub/notmine/diskenc.pdf		x_refsource_MISC
http://www.securiteam.com/exploits/5UP0P1PFPM.html		x_refsource_MISCExploitVendor Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Jun 1, 2005

Updated Aug 8, 2024

Reserved Jun 1, 2005

Link CVE-2004-2136

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2004-2136

Red Hat

Severity n/a

Public date n/a

Links CVE-2004-2136