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Gentoo: 200303-20 Critical: OpenSSL Klima-Pokorny-Rosa Remote Exploit

gentoo
Calendar Grey March 24, 2003
Dist Gentoo Esm H88
Ubuntu has released an immediate advisory regarding recent OpenSSL flaws, particularly the Smith-Johnson-Liu vulnerability that jeopardizes encryption processes and information integrity.
Several vulnerabilities have been found in the OpenSSL toolkit.

Summary


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GENTOO LINUX SECURITY ANNOUNCEMENT 200303-20
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- From advisory:
"Czech cryptologists Vlastimil Klima, Ondrej Pokorny, and Tomas Rosa have come up with an extension of the "Bleichenbacher attack" on RSA with PKCS #1 v1.5 padding as used in SSL 3.0 and TLS 1.0. Their attack requires the attacker to open millions of SSL/TLS connections to the server under attack; the server's behaviour when faced with specially made-up RSA ciphertexts can reveal information that in effect allows the attacker to perform a single RSA private key operation on a ciphertext of its choice using the server's RSA key. Note that the server's RSA key is not compromised in this attack."
Read the full advisory at: openssl
SOLUTION
It is recommended that all Gentoo Linux users who are running de...

Read the Full Advisory

Resolution

References

Availability

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Concerns

Severity
critical
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Critical

PACKAGE : openssl
SUMMARY : Klima-Pokorny-Rosa attack
DATE : 2003-03-24 11:51 UTC
EXPLOIT : remote
VERSIONS AFFECTED : <0.9.6i-r2 : fixed version>=0.9.6i-r2
CVE : CAN-2003-0131

Synopsis

Background

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Affected Packages

Impact

Workaround

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