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Sicherheit: Zwei Probleme in Tor
Aktuelle Meldungen Distributionen
Name: Zwei Probleme in Tor
ID: MDVSA-2015:205
Distribution: Mandriva
Plattformen: Mandriva Business Server 1.0
Datum: Mo, 27. April 2015, 11:03
Referenzen: http://advisories.mageia.org/MGASA-2015-0151.html
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2928
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2929

Originalnachricht

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_______________________________________________________________________

Mandriva Linux Security Advisory MDVSA-2015:205
http://www.mandriva.com/en/support/security/
_______________________________________________________________________

Package : tor
Date : April 27, 2015
Affected: Business Server 1.0
_______________________________________________________________________

Problem Description:

Updated tor packages fix security vulnerabilities:

disgleirio discovered that a malicious client could trigger an
assertion failure in a Tor instance providing a hidden service,
thus rendering the service inaccessible (CVE-2015-2928).

DonnchaC discovered that Tor clients would crash with an assertion
failure upon parsing specially crafted hidden service descriptors
(CVE-2015-2929).

Introduction points would accept multiple INTRODUCE1 cells on one
circuit, making it inexpensive for an attacker to overload a hidden
service with introductions. Introduction points now no longer allow
multiple cells of that type on the same circuit.

The tor package has been updated to version 0.2.4.27, fixing these
issues.
_______________________________________________________________________

References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2928
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2929
http://advisories.mageia.org/MGASA-2015-0151.html
_______________________________________________________________________

Updated Packages:

Mandriva Business Server 1/X86_64:
70a4fadaae5273088ee158e8933011ac mbs1/x86_64/tor-0.2.4.27-1.mbs1.x86_64.rpm
980397681a55a95f3610221c508b0bf3 mbs1/SRPMS/tor-0.2.4.27-1.mbs1.src.rpm
_______________________________________________________________________

To upgrade automatically use MandrivaUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.

All packages are signed by Mandriva for security. You can obtain the
GPG public key of the Mandriva Security Team by executing:

gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98

You can view other update advisories for Mandriva Linux at:

http://www.mandriva.com/en/support/security/advisories/

If you want to report vulnerabilities, please contact

security_(at)_mandriva.com
_______________________________________________________________________

Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Mandriva Security Team
<security*mandriva.com>
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_______________________________________________________
Want to buy your Pack or Services from Mandriva?
Go to http://store.mandriva.com
_______________________________________________________


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