RHSA-2020:2854: Important: kernel-alt security and bug fix update

First published: Tue Jul 07 2020(Updated: )

The kernel-alt packages provide the Linux kernel version 4.x.<br>Security Fix(es):<br><li> kernel: nfs: use-after-free in svc_process_common() (CVE-2018-16884)</li> <li> Kernel: ppc: kvm: conflicting use of HSTATE_HOST_R1 to store r1 state leads to host stack corruption (CVE-2020-8834)</li> <li> Kernel: vfio: access to disabled MMIO space of some devices may lead to DoS scenario (CVE-2020-12888)</li> <li> kernel: use after free due to race condition in the video driver leads to local privilege escalation (CVE-2019-9458)</li> <li> kernel: use-after-free in drivers/char/ipmi/ipmi_si_intf.c, ipmi_si_mem_io.c, ipmi_si_port_io.c (CVE-2019-11811)</li> <li> kernel: use-after-free in drivers/bluetooth/hci_ldisc.c (CVE-2019-15917)</li> <li> kernel: memory leak in ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c (CVE-2019-18808)</li> <li> kernel: use-after-free in __ext4_expand_extra_isize and ext4_xattr_set_entry related to fs/ext4/inode.c and fs/ext4/super.c (CVE-2019-19767)</li> <li> kernel: an out-of-bounds write via crafted keycode table (CVE-2019-20636)</li> <li> kernel: use-after-free read in napi_gro_frags() in the Linux kernel (CVE-2020-10720)</li> <li> kernel: out-of-bounds write in mpol_parse_str function in mm/mempolicy.c (CVE-2020-11565)</li> <li> kernel: A memory leak in the crypto_report() function in crypto/crypto_user_base.c allows for a DoS (CVE-2019-19062)</li> For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.<br>Bug Fix(es):<br><li> XFS: Metadata corruption detected at xfs_attr3_leaf_read_verify [rhel-alt-7.6.z] (BZ#1830836)</li>

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