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Red Hat Enterprise Linux 7 and CentOS 7 Get Important Kernel Security Update

By Marius Nestor

Marked as important by Red Hat Product Security, the new Linux kernel security patch is here to fix a use-after-free flaw (CVE-2018-20856) discovered in the __blk_drain_queue() function in block/blk-core.c, as well as a heap overflow issue (CVE-2019-3846) discovered in the mwifiex_update_bss_desc_with_ie function in marvell/mwifiex/scan.c. It also addresses a heap overflow issue (CVE-2019-10126) discovered in the mwifiex_uap_parse_tail_ies function in drivers/net/wireless/marvell/mwifiex/ie.c and a Bluetooth flaw (CVE-2019-9506) that may lead to BR/EDR encryption key negotiation attacks (KNOB).

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