SB2024091764 - Red Hat Enterprise Linux 8 update for kernel

Description

This security bulletin contains information about 12 vulnerabilities.

1) Out-of-bounds read (CVE-ID: CVE-2021-47138)

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 clear_all_filters() function in drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c. A local user can perform a denial of service (DoS) attack.

2) Race condition (CVE-ID: CVE-2024-26698)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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 race condition within the netvsc_device_remove() function in drivers/net/hyperv/netvsc.c. A local user can escalate privileges on the system.

3) Buffer overflow (CVE-ID: CVE-2022-48659)

CWE-ID: CWE-119 - Memory corruption

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 corruption within the create_unique_id() and sysfs_slab_add() functions in mm/slub.c. A local user can perform a denial of service (DoS) attack.

4) Input validation error (CVE-ID: CVE-2024-26982)

CWE-ID: CWE-20 - Improper input validation

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 input validation within the squashfs_new_inode() function in fs/squashfs/inode.c. A local user can perform a denial of service (DoS) attack.

5) Buffer overflow (CVE-ID: CVE-2024-35823)

CWE-ID: CWE-119 - Memory corruption

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 corruption within the vc_uniscr_delete() function in drivers/tty/vt/vt.c. A local user can perform a denial of service (DoS) attack.

6) Use-after-free (CVE-ID: CVE-2021-47378)

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 nvme_rdma_free_queue(), nvme_rdma_conn_established(), nvme_rdma_route_resolved() and nvme_rdma_cm_handler() functions in drivers/nvme/host/rdma.c. A local user can escalate privileges on the system.

7) Race condition (CVE-ID: CVE-2021-47461)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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 race condition within the userfaultfd_writeprotect() function in fs/userfaultfd.c. A local user can escalate privileges on the system.

8) Buffer overflow (CVE-ID: CVE-2024-38586)

CWE-ID: CWE-119 - Memory corruption

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 corruption within the rtl8169_doorbell() and rtl8169_start_xmit() functions in drivers/net/ethernet/realtek/r8169_main.c. A local user can perform a denial of service (DoS) attack.

9) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2024-38564)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to bypass certain security restrictions.

The vulnerability exists due to improper checks within with bpf_prog_attach_check_attach_type() function in kernel/bpf/syscall.c. A local user can bypass certain security restrictions.

10) Out-of-bounds read (CVE-ID: CVE-2024-38540)

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 bnxt_qplib_create_qp() function in drivers/infiniband/hw/bnxt_re/qplib_fp.c. A local user can perform a denial of service (DoS) attack.

11) Use-after-free (CVE-ID: CVE-2022-48796)

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 dev_iommu_get() function in drivers/iommu/iommu.c. A local user can escalate privileges on the system.

12) Out-of-bounds read (CVE-ID: CVE-2024-41014)

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 xlog_recover_process_data() function in fs/xfs/xfs_log_recover.c. A local user can perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://access.redhat.com/errata/RHSA-2024:6297