SB2023011942 - Ubuntu update for linux-bluefield
Published: January 19, 2023 Updated: May 21, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 10 secuirty vulnerabilities.
1) Race condition (CVE-ID: CVE-2022-20421)
The vulnerability allows a local application to escalate privileges on the system.
The vulnerability exists due to a race condition within the Binder driver in Android kernel in drivers/android/binder.c. A local application can exploit the race to trigger a use-after-free error and execute arbitrary code with elevated privileges.
2) Input validation error (CVE-ID: CVE-2022-2663)
The vulnerability allows a remote attacker to bypass firewall rules.
The vulnerability exists due to insufficient validation of user-supplied input in nf_conntrack_irc in Linux kernel. A remote attacker can send unencrypted IRC with nf_conntrack_irc configured and bypass configured firewall rules.
3) Division by zero (CVE-ID: CVE-2022-3061)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to missing checks of the "pixclock" value in the Linux kernel i740 driver. A local user can pass arbitrary values to the driver through ioctl() interface, trigger a divide by zero error and perform a denial of service (DoS) attack.
4) NULL pointer dereference (CVE-ID: CVE-2022-3303)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in the Linux kernel sound subsystem due to improper locking when handling the SNDCTL_DSP_SYNC ioctl. A privileged local user can trigger a NULL pointer dereference error and perform a denial of service (DoS) attack.
5) Use-after-free (CVE-ID: CVE-2022-3586)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error in the way the sch_sfb enqueue function used the socket buffer (SKB) cb
field after the same SKB had been enqueued (and freed) into a child
qdisc. A local user can perform a denial of service (DoS) attack.
6) NULL pointer dereference (CVE-ID: CVE-2022-3646)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in the nilfs2 filesystem driver within the nilfs_attach_log_writer() function in fs/nilfs2/segment.c in Linux kernel. A remote attacker can trick the victim into mounting a specially crafted image and perform a denial of service (DoS) attack.
7) Integer overflow (CVE-ID: CVE-2022-39842)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to integer overflow within the pxa3xx_gcu_write() function in drivers/video/fbdev/pxa3xx-gcu.c in Linux kernel. A local user can trigger an integer overflow and execute arbitrary code with escalated privileges.
8) Use-after-free (CVE-ID: CVE-2022-40307)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error within the drivers/firmware/efi/capsule-loader.c in Linux kernel. A local user can trigger a use-after-free error and perform a denial of service (DoS) attack.
9) Double Free (CVE-ID: CVE-2022-4095)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the cmd_hdl_filter() function in drivers/staging/rtl8712/rtl8712_cmd.c. A local user can trigger a double free error and execute arbitrary code with escalated privileges.
10) Out-of-bounds write (CVE-ID: CVE-2022-43750)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the drivers/usb/mon/mon_bin.c in usbmon in the Linux kernel. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.
Remediation
Install update from vendor's website.