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[3.7] bpo-41004: Resolve hash collisions for IPv4Interface and IPv6In…
…terface (GH-21033) (GH-21231) CVE-2020-14422 The __hash__() methods of classes IPv4Interface and IPv6Interface had issue of generating constant hash values of 32 and 128 respectively causing hash collisions. The fix uses the hash() function to generate hash values for the objects instead of XOR operation (cherry picked from commit b30ee26) Co-authored-by: Ravi Teja P <rvteja92@gmail.com> Signed-off-by: Tapas Kundu <tkundu@vmware.com>
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Misc/NEWS.d/next/Security/2020-06-29-16-02-29.bpo-41004.ovF0KZ.rst
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CVE-2020-14422: The __hash__() methods of ipaddress.IPv4Interface and ipaddress.IPv6Interface incorrectly generated constant hash values of 32 and 128 respectively. This resulted in always causing hash collisions. The fix uses hash() to generate hash values for the tuple of (address, mask length, network address). |