SB2025030762 - openEuler 20.03 LTS SP4 update for kernel
Published: March 7, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 8 vulnerabilities.
1) NULL pointer dereference (CVE-ID: CVE-2021-47652)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the ufx_usb_probe() function in drivers/video/fbdev/smscufx.c. A local user can perform a denial of service (DoS) attack.
2) Out-of-bounds read (CVE-ID: CVE-2022-49073)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the SATA_DWC_QCMD_MAX() function in drivers/ata/sata_dwc_460ex.c. A local user can perform a denial of service (DoS) attack.
3) Memory leak (CVE-ID: CVE-2022-49091)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the imx_pd_connector_get_modes() function in drivers/gpu/drm/imx/parallel-display.c. A local user can perform a denial of service (DoS) attack.
4) Memory leak (CVE-ID: CVE-2022-49394)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:U/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the blkiolatency_enable_work_fn(), BLKIOLATENCY(), blkcg_iolatency_throttle(), blkcg_iolatency_done_bio(), blkcg_iolatency_exit(), rcu_read_unlock(), blk_iolatency_init(), iolatency_set_min_lat_nsec(), iolatency_set_limit() and iolatency_pd_offline() functions in block/blk-iolatency.c. A local user can perform a denial of service (DoS) attack.
5) Memory leak (CVE-ID: CVE-2024-57883)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the huge_pmd_share() and huge_pmd_unshare() functions in mm/hugetlb.c. A local user can perform a denial of service (DoS) attack.
6) Improper locking (CVE-ID: CVE-2024-57977)
CWE-ID: CWE-667 - Improper Locking
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the dump_tasks() function in mm/oom_kill.c, within the mem_cgroup_scan_tasks() function in mm/memcontrol.c. A local user can perform a denial of service (DoS) attack.
7) Use-after-free (CVE-ID: CVE-2025-21731)
CWE-ID: CWE-416 - Use After Free
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the nbd_disconnect_and_put() function in drivers/block/nbd.c. A local user can escalate privileges on the system.
8) Out-of-bounds read (CVE-ID: CVE-2025-21815)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the isolate_freepages_block() function in mm/compaction.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.