RHSA-2022:7683: Moderate: kernel security, bug fix, and enhancement update
The kernel packages contain the Linux kernel, the core of any Linux operating system.Security Fix(es): off-path attacker may inject data or terminate victim's TCP session (CVE-2020-36516) race condition in VTRESIZEX ioctl when vccons[i].d is already NULL leading to NULL pointer dereference (CVE-2020-36558) use-after-free vulnerability in function scosocksendmsg() (CVE-2021-3640) memory leak for large arguments in videousercopy function in drivers/media/v4l2-core/v4l2-ioctl.c (CVE-2021-30002) smb2ioctlqueryinfo NULL Pointer Dereference (CVE-2022-0168) NULL pointer dereference in udfexpandfileadinicbdue() during writeback (CVE-2022-0617) swiotlb information leak with DMAFROMDEVICE (CVE-2022-0854) uninitialized registers on stack in nftdochain can cause kernel pointer leakage to UM (CVE-2022-1016) race condition in sndpcmhwfree leading to use-after-free (CVE-2022-1048) use-after-free in tcnewtfilter() in net/sched/clsapi.c (CVE-2022-1055) use-after-free and memory errors in ext4 when mounting and operating on a corrupted image (CVE-2022-1184) NULL pointer dereference in x86emulateinsn may lead to DoS (CVE-2022-1852) buffer overflow in nftsetdescconcatparse() (CVE-2022-2078) nftables cross-table potential use-after-free may lead to local privilege escalation (CVE-2022-2586) openvswitch: integer underflow leads to out-of-bounds write in reservesfasize() (CVE-2022-2639) use-after-free when psi trigger is destroyed while being polled (CVE-2022-2938) net/packet: slab-out-of-bounds access in packetrecvmsg() (CVE-2022-20368) possible to use the debugger to write zero into a location of choice (CVE-2022-21499) Spectre-BHB (CVE-2022-23960) Post-barrier Return Stack Buffer Predictions (CVE-2022-26373) memory leak in drivers/hid/hid-elo.c (CVE-2022-27950) double free in emsusbstartxmit in drivers/net/can/usb/emsusb.c (CVE-2022-28390) use after free in SUNRPC subsystem (CVE-2022-28893) use-after-free due to improper update of reference count in net/sched/clsu32.c (CVE-2022-29581) DoS in nfqnlmangle in net/netfilter/nfnetlinkqueue.c (CVE-2022-36946) nfsatomicopen() returns uninitialized data instead of ENOTDIR (CVE-2022-24448) 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.Additional Changes:For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.7 Release Notes linked from the References section.
Affected Software
Remediation
Event History
Frequently Asked Questions
What security vulnerabilities are addressed by RHSA-2022:7683?
RHSA-2022:7683 addresses CVE-2020-36516 related to an off-path attacker potentially injecting data or terminating a victim's TCP session.
How can I resolve the issues mentioned in RHSA-2022:7683?
To resolve the issues referenced in RHSA-2022:7683, you should update to the kernel version 4.18.0-425.3.1.el8 or later.
What is the severity of RHSA-2022:7683?
The severity of RHSA-2022:7683 is classified as important due to the potential impact on system security.
Which systems are affected by RHSA-2022:7683?
RHSA-2022:7683 affects systems running specific versions of the kernel package, particularly on Red Hat Enterprise Linux 8.
Are there any specific commands to check for updates related to RHSA-2022:7683?
You can use the command `dnf update` or `yum update` to check and apply updates related to RHSA-2022:7683.