Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2003-0078

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
03/03/2003
Last modified:
03/04/2025

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."

Impact

Vector 2.0
AV:N/AC:L/Au:N/C:P/I:N/A:N CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): None
Availability (A): None

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* 0.9.6i (excluding)
cpe:2.3:a:openssl:openssl:0.9.6i:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.7:-:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.7:beta1:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.7:beta2:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.7:beta3:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.7:beta4:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.7:beta5:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.7:beta6:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:4.2:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:4.3:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:4.4:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:4.5:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:4.6:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:4.7:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools