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CVE Record

CVE-2004-2135: cryptoloop on Linux kernel 2.6.x, when used on certain file systems with a block size 1024 or greater, has...

cryptoloop 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.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

This issue affects Linux 2.6.x cryptoloop encryption in specific filesystem block-size conditions. It may let someone recognize specially watermarked files on encrypted storage without decrypting them. The sources describe a confidentiality weakness, not full decryption or system takeover. Exposure is likely limited to legacy Linux 2.6.x systems using cryptoloop with affected filesystem block sizes. Modern exposure cannot be inferred from the provided sources. Encrypted disk images, archives, or legacy appliances may need separate inventory review. Treat this as a legacy confidentiality risk. It is not documented here as actively exploited or remotely exploitable, but any remaining Linux 2.6.x cryptoloop use protecting sensitive data deserves review and retirement planning. Mitigation focus: Inventory Linux 2.6.x systems using cryptoloop encryption.; Identify filesystem block sizes on encrypted volumes.; Check OS or distribution vendor guidance for fixed or supported configurations..

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Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors
0Timeline events
0ADP providers
1Source links

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Source materials

Affected products

Products and packages named in the record

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n/an/an/aListed
Weakness

CWE details

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