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debiancveDebian Security Bug TrackerDEBIANCVE:CVE-2009-0653
HistoryFeb 20, 2009 - 7:30 p.m.

CVE-2009-0653

2009-02-2019:30:00
Debian Security Bug Tracker
security-tracker.debian.org
11
openssl
basic constraints
man-in-the-middle
ca-signed certificate
remote attackers

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS

0.011

Percentile

85.0%

OpenSSL, probably 0.9.6, does not verify the Basic Constraints for an intermediate CA-signed certificate, which allows remote attackers to spoof the certificates of trusted sites via a man-in-the-middle attack, a related issue to CVE-2002-0970.

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS

0.011

Percentile

85.0%