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Security fixes (#315)

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* Bounds checks

Fixes for CVEs
https://www.libssh2.org/CVE-2019-3863.html
https://www.libssh2.org/CVE-2019-3856.html

* Packet length bounds check

CVE
https://www.libssh2.org/CVE-2019-3855.html

* Response length check

CVE
https://www.libssh2.org/CVE-2019-3859.html

* Bounds check

CVE
https://www.libssh2.org/CVE-2019-3857.html

* Bounds checking

CVE
https://www.libssh2.org/CVE-2019-3859.html

and additional data validation

* Check bounds before reading into buffers

* Bounds checking

CVE
https://www.libssh2.org/CVE-2019-3859.html

* declare SIZE_MAX and UINT_MAX if needed
This commit is contained in:
Will Cosgrove
2019-03-14 15:22:13 -07:00
committed by GitHub
parent e1d9bd49e4
commit dc109a7f51
8 changed files with 419 additions and 186 deletions
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12
include/libssh2.h
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@@ -154,6 +154,18 @@ typedef int libssh2_socket_t;
#define LIBSSH2_INVALID_SOCKET -1
#endif /* WIN32 */
#ifndef SIZE_MAX
#if _WIN64
#define SIZE_MAX 0xFFFFFFFFFFFFFFFF
#else
#define SIZE_MAX 0xFFFFFFFF
#endif
#endif
#ifndef UINT_MAX
#define UINT_MAX 0xFFFFFFFF
#endif
/*
* Determine whether there is small or large file support on windows.
*/