full-disclosure - GLSA: openssl (200303-20)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <20030324115019.3FD905764@mail2.tamperd.net>
From: aliz at gentoo.org (Daniel Ahlberg)
Subject: GLSA:  openssl (200303-20)

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- - ---------------------------------------------------------------------
GENTOO LINUX SECURITY ANNOUNCEMENT 200303-20
- - ---------------------------------------------------------------------

          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

- - ---------------------------------------------------------------------

- 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:
http://www.openssl.org/news/secadv_20030319.txt

SOLUTION

It is recommended that all Gentoo Linux users who are running
dev-libs/openssl upgrade to openssl-0.9.6i-r2 as follows:

emerge sync
emerge openssl
emerge clean

- - ---------------------------------------------------------------------
aliz@...too.org - GnuPG key is available at http://cvs.gentoo.org/~aliz
- - ---------------------------------------------------------------------
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.1 (GNU/Linux)

iD8DBQE+fvEtfT7nyhUpoZMRAjGBAJ9fkr/E5rMWv7Sp1YBg+3rRNqbS6wCglHh8
XW2wBWHA0/W3NXOz+ONEFTg=
=l0Nr
-----END PGP SIGNATURE-----