Security update for the Linux Kernel
| Announcement ID: | SUSE-SU-2020:1603-1 |
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| Rating: | important |
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An update that solves 23 vulnerabilities and has 92 security fixes can now be installed.
Description:
The SUSE Linux Enterprise 12 SP4 Azure kernel was updated to receive various security and bugfixes.
The following security bugs were fixed:
- CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called it. This attack is known as Special Register Buffer Data Sampling (SRBDS) or "CrossTalk" (bsc#1154824).
- CVE-2020-13143: Fixed an out-of-bounds read in gadget_dev_desc_UDC_store in drivers/usb/gadget/configfs.c (bsc#1171982).
- CVE-2020-12769: Fixed an issue which could have allowed attackers to cause a panic via concurrent calls to dw_spi_irq and dw_spi_transfer_one (bsc#1171983).
- CVE-2020-12768: Fixed a memory leak in svm_cpu_uninit in arch/x86/kvm/svm.c (bsc#1171736).
- CVE-2020-12657: An a use-after-free in block/bfq-iosched.c (bsc#1171205).
- CVE-2020-12656: Fixed an improper handling of certain domain_release calls leadingch could have led to a memory leak (bsc#1171219).
- CVE-2020-12655: Fixed an issue which could have allowed attackers to trigger a sync of excessive duration via an XFS v5 image with crafted metadata (bsc#1171217).
- CVE-2020-12654: Fixed an issue in he wifi driver which could have allowed a remote AP to trigger a heap-based buffer overflow (bsc#1171202).
- CVE-2020-12653: Fixed an issue in the wifi driver which could have allowed local users to gain privileges or cause a denial of service (bsc#1171195).
- CVE-2020-12652: Fixed an issue which could have allowed local users to hold an incorrect lock during the ioctl operation and trigger a race condition (bsc#1171218).
- CVE-2020-12464: Fixed a use-after-free due to a transfer without a reference (bsc#1170901).
- CVE-2020-12114: Fixed a pivot_root race condition which could have allowed local users to cause a denial of service (panic) by corrupting a mountpoint reference counter (bsc#1171098).
- CVE-2020-10757: Fixed an issue where remaping hugepage DAX to anon mmap could have caused user PTE access (bsc#1172317).
- CVE-2020-10751: Fixed an improper implementation in SELinux LSM hook where it was assumed that an skb would only contain a single netlink message (bsc#1171189).
- CVE-2020-10732: Fixed kernel data leak in userspace coredumps due to uninitialized data (bsc#1171220).
- CVE-2020-10720: Fixed a use-after-free read in napi_gro_frags() (bsc#1170778).
- CVE-2020-10711: Fixed a null pointer dereference in SELinux subsystem which could have allowed a remote network user to crash the kernel resulting in a denial of service (bsc#1171191).
- CVE-2020-10690: Fixed the race between the release of ptp_clock and cdev (bsc#1170056).
- CVE-2019-9455: Fixed a pointer leak due to a WARN_ON statement in a video driver. This could lead to local information disclosure with System execution privileges needed (bsc#1170345).
- CVE-2019-20812: Fixed an issue in prb_calc_retire_blk_tmo() which could have resulted in a denial of service (bsc#1172453).
- CVE-2019-20806: Fixed a null pointer dereference which may had lead to denial of service (bsc#1172199).
- CVE-2019-19462: Fixed an issue which could have allowed local user to cause denial of service (bsc#1158265).
- CVE-2018-1000199: Fixed a potential local code execution via ptrace (bsc#1089895).
The following non-security bugs were fixed:
- ACPI: CPPC: Fix reference count leak in acpi_cppc_processor_probe() (bsc#1051510).
- ACPI: sysfs: Fix reference count leak in acpi_sysfs_add_hotplug_profile() (bsc#1051510).
- acpi/x86: ignore unspecified bit positions in the ACPI global lock field (bsc#1051510).
- Add commit for git-fix that's not a fix This commit cleans up debug code but does not