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systemsmanagement:Uyuni:Master:EL9-Uyuni-Client-Tools:Build-Dependencies
saltbundle-zeromq
CVE-2019-6250.patch
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File CVE-2019-6250.patch of Package saltbundle-zeromq
Author: Guido Vranken <guidovranken@gmail.com> Description: pointer overflow in zmq::v2_decoder_t::size_ready leading to remote code execution (issue #3351). Refactor bounds check arithmetic such that no overflow shall occur Origin: https://github.com/zeromq/libzmq/pull/3353 Applied-Upstream: 1a2ed12716693073032d57dac4e269df3d373751 --- a/src/v2_decoder.cpp +++ b/src/v2_decoder.cpp @@ -108,7 +108,7 @@ int zmq::v2_decoder_t::size_ready(uint64_t msg_size, unsigned char const* read_p // the current message can exceed the current buffer. We have to copy the buffer // data into a new message and complete it in the next receive. - if (unlikely ((unsigned char*)read_pos + msg_size > (data() + size()))) + if (unlikely (msg_size > (size_t) (data () + size () - read_pos))) { // a new message has started, but the size would exceed the pre-allocated arena // this happens every time when a message does not fit completely into the buffer
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