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Debian Security Advisory 2548-1

Debian Security Advisory 2548-1
Posted Sep 14, 2012
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2548-1 - Severel vulnerabilities have been discovered in Tor, an online privacy tool.

tags | advisory, vulnerability
systems | linux, debian
advisories | CVE-2012-3518, CVE-2012-3519, CVE-2012-4419
MD5 | 5d9f667eaf67eb14c69b846c004c41c6

Debian Security Advisory 2548-1

Change Mirror Download
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- -------------------------------------------------------------------------
Debian Security Advisory DSA-2548-1 security@debian.org
http://www.debian.org/security/ Moritz Muehlenhoff
September 13, 2012 http://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : tor
Vulnerability : several
Problem type : remote
Debian-specific: no
CVE ID : CVE-2012-3518 CVE-2012-3519 CVE-2012-4419

Severel vulnerabilities have been discovered in Tor, an online privacy
tool.

CVE-2012-3518

Avoid an uninitialised memory read when reading a vote or consensus
document that has an unrecognized flavour name. This could lead to
a remote, resulting in denial of service.

CVE-2012-3519

Try to leak less information about what relays a client is choosing to
a side-channel attacker.

CVE-2012-4419

By providing specially crafted date strings to a victim tor instance,
an attacker can cause it to run into an assertion and shut down

Additionally the update to stable includes the following fixes:
- - When waiting for a client to renegotiate, don't allow it to add any
bytes to the input buffer. This fixes a potential DoS issue
[tor-5934, tor-6007].

For the stable distribution (squeeze), these problems have been fixed in
version 0.2.2.39-1.

For the unstable distribution, these problems have been fixed in version
0.2.3.22-rc-1.

We recommend that you upgrade your tor packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
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