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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...

5.0 MediumPublic exploitFix available

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."

Exploit likelihood

13.7%Up 1.2 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 5.0

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."

Record
CVE-2003-0078
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness
CWE-203
Updated
2026-11-02
CVE List No score

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."

Record
CVE-2003-0078
Updated
2026-11-02
EUVDEUVD-2003-0074 No score

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."

Record
EUVD-2003-0074
Updated
2026-11-03
GitHub AdvisoriesGHSA-2x68-h5x4-c4qp No score

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...

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."

Record
GHSA-2x68-h5x4-c4qp
Updated
2026-11-02
OSV No score

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."

Record
CVE-2003-0078
Updated
2026-11-02
OSVDEBIAN-CVE-2003-0078 No score

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."

Record
DEBIAN-CVE-2003-0078
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
openssl
Debian:12
before 0.9.7a-1
0.9.7a-1
openssl
Debian:13
before 0.9.7a-1
0.9.7a-1
openssl
Debian:14
before 0.9.7a-1
0.9.7a-1
openssl
Debian:3.0
before 0.9.6c-2.woody.2
0.9.6c-2.woody.2

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
Exploit-DBOpenSSL 0.9.x - CBC Error Information Leakage2003-02-19

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, Exploit-DB, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2003-0078 is a medium vulnerability (CVSS 5.0) in Openssl, published February 24, 2003. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 13.7%, the 96th percentile. Fixed in openssl 0.9.7a-1.

References

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