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[ GLSA 200903-11 ] PyCrypto: Execution of arbitrary code
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GLSA
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Joined: 12 May 2004
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PostPosted: Mon Mar 09, 2009 2:26 pm    Post subject: [ GLSA 200903-11 ] PyCrypto: Execution of arbitrary code Reply with quote

Gentoo Linux Security Advisory

Title: PyCrypto: Execution of arbitrary code (GLSA 200903-11)
Severity: normal
Exploitable: remote
Date: March 09, 2009
Bug(s): #258049
ID: 200903-11

Synopsis


A buffer overflow in PyCrypto might lead to the execution of arbitrary code
when decrypting using ARC2.


Background


PyCrypto is the Python Cryptography Toolkit.


Affected Packages

Package: dev-python/pycrypto
Vulnerable: < 2.0.1-r8
Unaffected: >= 2.0.1-r8
Architectures: All supported architectures


Description


Mike Wiacek of the Google Security Team reported a buffer overflow in
the ARC2 module when processing a large ARC2 key length.


Impact


A remote attacker could entice a user or automated system to decrypt an
ARC2 stream in an application using PyCrypto, possibly resulting in the
execution of arbitrary code or a Denial of Service.


Workaround


There is no known workaround at this time.


Resolution


All PyCrypto users should upgrade to the latest version:
Code:
# emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-python/pycrypto-2.0.1-r8"


References

CVE-2009-0544


Last edited by GLSA on Mon May 06, 2013 4:28 am; edited 4 times in total
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