Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2014.1871
openssl security update
17 October 2014
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AusCERT Security Bulletin Summary
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Product: openssl
Publisher: Debian
Operating System: Debian GNU/Linux 7
Impact/Access: Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Remote with User Interaction
Reduced Security -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2014-3568 CVE-2014-3567 CVE-2014-3566
CVE-2014-3513
Reference: ASB-2014.0122
ESB-2014.1869
ESB-2014.1868.2
ESB-2014.1863
ESB-2014.1860
ESB-2014.1859
ESB-2014.1858
ESB-2014.1857
ESB-2014.1849
Original Bulletin:
http://www.debian.org/security/2014/dsa-3053
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Debian Security Advisory DSA-3053-1 security@debian.org
http://www.debian.org/security/ Thijs Kinkhorst
October 16, 2014 http://www.debian.org/security/faq
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Package : openssl
CVE ID : CVE-2014-3513 CVE-2014-3566 CVE-2014-3567 CVE-2014-3568
Several vulnerabilities have been found in OpenSSL, the Secure Sockets
Layer library and toolkit.
CVE-2014-3513
A memory leak flaw was found in the way OpenSSL parsed the DTLS Secure
Real-time Transport Protocol (SRTP) extension data. A remote attacker
could send multiple specially crafted handshake messages to exhaust
all available memory of an SSL/TLS or DTLS server.
CVE-2014-3566 ("POODLE")
A flaw was found in the way SSL 3.0 handled padding bytes when
decrypting messages encrypted using block ciphers in cipher block
chaining (CBC) mode. This flaw allows a man-in-the-middle (MITM)
attacker to decrypt a selected byte of a cipher text in as few as 256
tries if they are able to force a victim application to repeatedly send
the same data over newly created SSL 3.0 connections.
This update adds support for Fallback SCSV to mitigate this issue.
CVE-2014-3567
A memory leak flaw was found in the way an OpenSSL handled failed
session ticket integrity checks. A remote attacker could exhaust all
available memory of an SSL/TLS or DTLS server by sending a large number
of invalid session tickets to that server.
CVE-2014-3568
When OpenSSL is configured with "no-ssl3" as a build option, servers
could accept and complete a SSL 3.0 handshake, and clients could be
configured to send them.
For the stable distribution (wheezy), these problems have been fixed in
version 1.0.1e-2+deb7u13.
For the unstable distribution (sid), these problems have been fixed in
version 1.0.1j-1.
We recommend that you upgrade your openssl packages.
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
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