CVE-2007-3528

CVE-2007-3528 is a medium-severity vulnerability in Dar with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

The blowfish mode in DAR before 2.3.4 uses weak Blowfish-CBC cryptography by (1) discarding random bits by the blowfish::make_ivec function in libdar/crypto.cpp that results in predictable and repeating IV values, and (2) direct use of a password for keying, which makes it easier for context-dependent attackers to decrypt files.

Frequently asked questions

What is CVE-2007-3528?
The blowfish mode in DAR before 2.3.4 uses weak Blowfish-CBC cryptography by (1) discarding random bits by the blowfish::make_ivec function in libdar/crypto.cpp that results in predictable and repeating IV values, and (2) direct use of a password for keying, which makes it easier for context-dependent attackers to decrypt files.
How severe is CVE-2007-3528?
CVE-2007-3528 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2007-3528 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-3528?
CVE-2007-3528 affects Dar. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-3528?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-3528 published?
CVE-2007-3528 was published on 2007-07-03 and last updated on 2026-06-16.

References

Affected products (1)