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Fix potential integer overflow parsing DER CRL

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This patch prevents a potential signed integer overflow during the
CRL version verification checks.
This commit is contained in:
Andres AG 2017-02-10 14:39:58 +00:00 committed by Simon Butcher
parent 2dfb02151d
commit ce49a25033
1 changed files with 4 additions and 0 deletions
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@ -13,6 +13,10 @@ Bugfix
Found by redplait #590 Found by redplait #590
* Add MBEDTLS_MPI_CHK to check for error value of mbedtls_mpi_fill_random. * Add MBEDTLS_MPI_CHK to check for error value of mbedtls_mpi_fill_random.
Reported and fix suggested by guidovranken in #740 Reported and fix suggested by guidovranken in #740
* Fix a potential integer overflow in the version verification for DER
encoded X509 CRLs. The overflow would enable maliciously constructed CRLs
to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
KNOX Security, Samsung Research America
Security Security
* Fix authentication bypass in SSL/TLS: when auth_mode is set to optional, * Fix authentication bypass in SSL/TLS: when auth_mode is set to optional,