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CVE-2003-0078

UnknownEPSS 13.72%

Last modified

CVE-2003-0078 is a vulnerability of currently unknown severity. ssl3_get_record in s3_pkt.c for OpenSSL before 0.9.7a and 0.9.6 before 0.9.6i does not perform a MAC computation if an incorrect block cipher padding is used, which causes an information leak (timing discrepancy) that may make it easier to launch cryptographic attacks that rely on distinguishing between padding and MAC verification errors, possibly leading to extraction of the original plaintext, aka the "Vaudenay timing attack.". EPSS estimates a 13.72% chance of exploitation in the next 30 days.

Description

ssl3_get_record in s3_pkt.c for OpenSSL before 0.9.7a and 0.9.6 before 0.9.6i does not perform a MAC computation if an incorrect block cipher padding is used, which causes an information leak (timing discrepancy) that may make it easier to launch cryptographic attacks that rely on distinguishing between padding and MAC verification errors, possibly leading to extraction of the original plaintext, aka the "Vaudenay timing attack."

Metrics

EPSS Probability
13.72%

96.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
OpensslOpenssl< 0.9.6i
OpensslOpenssl0.9.6i
OpensslOpenssl0.9.7
FreebsdFreebsd4.2
FreebsdFreebsd4.3
FreebsdFreebsd4.4
FreebsdFreebsd4.5
FreebsdFreebsd4.6
FreebsdFreebsd4.7
FreebsdFreebsd5.0
OpenbsdOpenbsd3.1
OpenbsdOpenbsd3.2

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2003-0078?
ssl3_get_record in s3_pkt.c for OpenSSL before 0.9.7a and 0.9.6 before 0.9.6i does not perform a MAC computation if an incorrect block cipher padding is used, which causes an information leak (timing discrepancy) that may make it easier to launch cryptographic attacks that rely on distinguishing between padding and MAC verification errors, possibly leading to extraction of the original plaintext, aka the "Vaudenay timing attack."
How severe is CVE-2003-0078?
Severity scoring for CVE-2003-0078 is pending analysis. The EPSS model estimates a 13.72% probability of exploitation in the next 30 days.
How do I fix CVE-2003-0078?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST