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PYSEC-2017-94

Quick fix

PYSEC-2017-94 — pycrypto: upgrade to the fixed version with the command below.

pip install --upgrade 'pycrypto>=8dbe0dc3eea5c689d4f76b37b93fe216cf1f00d4'

Details

Heap-based buffer overflow in the ALGnew function in block_templace.c in Python Cryptography Toolkit (aka pycrypto) allows remote attackers to execute arbitrary code as demonstrated by a crafted iv parameter to cryptmsg.py.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/pycrypto

Introduced in: 0Fixed in: 8dbe0dc3eea5c689d4f76b37b93fe216cf1f00d4

Fixpip install --upgrade 'pycrypto>=8dbe0dc3eea5c689d4f76b37b93fe216cf1f00d4'

References

https://pony7.fr/ctf:public:32c3:cryptmsg[WEB]
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RJ37R2YLX56YZABFNAOWV4VTHTGYREAE/[WEB]
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/C6BWNADPLKDBBQBUT3P75W7HAJCE7M3B/[WEB]
https://github.com/dlitz/pycrypto/issues/176[REPORT]
https://github.com/dlitz/pycrypto/commit/8dbe0dc3eea5c689d4f76b37b93fe216cf1f00d4[FIX]
https://bugzilla.redhat.com/show_bug.cgi?id=1409754[REPORT]
http://www.securityfocus.com/bid/95122[WEB]
http://www.openwall.com/lists/oss-security/2016/12/27/8[WEB]
https://security.gentoo.org/glsa/201702-14[ADVISORY]
https://github.com/advisories/GHSA-cq27-v7xp-c356[ADVISORY]