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2021-10-18
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CVE-2021-41991
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The in-memory certificate cache in strongSwan before 5.9.4 has a remote integer overflow upon receiving many requests with different certificates to fill the cache and later trigger the replacement of cache entries. The code attempts to select a less-often-used cache entry by means of a random number generator, but this is not done correctly. Remote code execution might be a slight possibility.
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Debian_linux, Fedora, Cp_1543\-1_firmware, Scalance_sc622\-2c_firmware, Scalance_sc632\-2c_firmware, Scalance_sc636\-2c_firmware, Scalance_sc642\-2c_firmware, Scalance_sc646\-2c_firmware, Simatic_cp_1242\-7_gprs_v2_firmware, Simatic_cp_1243\-1_firmware, Simatic_cp_1243\-7_lte\/us_firmware, Simatic_cp_1542sp\-1_firmware, Simatic_cp_1542sp\-1_irc_firmware, Simatic_cp_1543sp\-1_firmware, Simatic_net_cp1243\-7_lte_eu_firmware, Simatic_net_cp_1243\-8_irc_firmware, Simatic_net_cp_1545\-1_firmware, Sinema_remote_connect_server, Siplus_et_200sp_cp_1542sp\-1_irc_tx_rail_firmware, Siplus_et_200sp_cp_1543sp\-1_isec_firmware, Siplus_et_200sp_cp_1543sp\-1_isec_tx_rail_firmware, Siplus_net_cp_1543\-1_firmware, Siplus_s7\-1200_cp_1243\-1_firmware, Siplus_s7\-1200_cp_1243\-1_rail_firmware, Strongswan
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7.5
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