SB2025111068 - Ubuntu update for linux-fips

Description

This security bulletin contains information about 22 vulnerabilities.

1) Input validation error (CVE-ID: CVE-2025-40300)

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 vcpu_enter_guest() function in arch/x86/kvm/x86.c. A local user can perform a denial of service (DoS) attack.

2) Use-after-free (CVE-ID: CVE-2025-38618)

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 __vsock_bind_connectible() function in net/vmw_vsock/af_vsock.c. A local user can escalate privileges on the system.

3) Improper locking (CVE-ID: CVE-2025-38617)

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 packet_set_ring() function in net/packet/af_packet.c. A local user can perform a denial of service (DoS) attack.

4) Race condition (CVE-ID: CVE-2025-38352)

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:A/U:Amber

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition within the run_posix_cpu_timers() function in kernel/time/posix-cpu-timers.c. A local user can escalate privileges on the system.

Note, the vulnerability is being actively exploited in the wild against Android devices.

5) Use-after-free (CVE-ID: CVE-2025-37838)

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 ssip_reset() function in drivers/hsi/clients/ssi_protocol.c. A local user can escalate privileges on the system.

6) Use-after-free (CVE-ID: CVE-2025-37785)

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 __ext4_check_dir_entry() function in fs/ext4/dir.c. A local user can escalate privileges on the system.

7) Use-after-free (CVE-ID: CVE-2025-21796)

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 posix_acl_release() function in fs/nfsd/nfs3acl.c, within the posix_acl_release() function in fs/nfsd/nfs2acl.c. A local user can escalate privileges on the system.

8) Use-after-free (CVE-ID: CVE-2024-56767)

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 at_xdmac_prep_dma_memset() function in drivers/dma/at_xdmac.c. A local user can escalate privileges on the system.

9) Out-of-bounds read (CVE-ID: CVE-2024-53150)

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:A/U:Amber

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 DESC_LENGTH_CHECK(), validate_clock_source() and validate_clock_selector() functions in sound/usb/clock.c. A local user can perform a denial of service (DoS) attack.

10) Race condition within a thread (CVE-ID: CVE-2024-53124)

CWE-ID: CWE-366 - Race Condition within a Thread

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 corrupt data.

The vulnerability exists due to a data race within the tcp_v6_do_rcv() function in net/ipv6/tcp_ipv6.c, within the dccp_v6_do_rcv() function in net/dccp/ipv6.c. A local user can corrupt data.

11) Input validation error (CVE-ID: CVE-2024-50299)

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 sctp_sf_ootb() function in net/sctp/sm_statefuns.c. A local user can perform a denial of service (DoS) attack.

12) Improper locking (CVE-ID: CVE-2024-50006)

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 ext4_ind_migrate() function in fs/ext4/migrate.c. A local user can perform a denial of service (DoS) attack.

13) Use-after-free (CVE-ID: CVE-2024-49924)

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 pxafb_remove() function in drivers/video/fbdev/pxafb.c. A local user can escalate privileges on the system.

14) Information disclosure (CVE-ID: CVE-2024-35849)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

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

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to information disclosure within the init_data_container() function in fs/btrfs/backref.c. A local user can gain access to sensitive information.

15) Memory leak (CVE-ID: CVE-2024-27078)

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 tpg_alloc() function in drivers/media/common/v4l2-tpg/v4l2-tpg-core.c. A local user can perform a denial of service (DoS) attack.

16) NULL pointer dereference (CVE-ID: CVE-2023-52650)

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 tegra_dsi_ganged_probe() function in drivers/gpu/drm/tegra/dsi.c. A local user can perform a denial of service (DoS) attack.

17) NULL pointer dereference (CVE-ID: CVE-2023-52574)

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 a NULL pointer dereference error in drivers/net/team/team.c. A local user can perform a denial of service (DoS) attack.

18) Use-after-free (CVE-ID: CVE-2021-47589)

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 igbvf_probe() function in drivers/net/ethernet/intel/igbvf/netdev.c. A local user can escalate privileges on the system.

19) Memory leak (CVE-ID: CVE-2021-47330)

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 serial_resume() and serial_probe() functions in drivers/tty/serial/8250/serial_cs.c. A local user can perform a denial of service (DoS) attack.

20) Memory leak (CVE-ID: CVE-2021-47319)

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 virtblk_freeze() function in drivers/block/virtio_blk.c. A local user can perform a denial of service (DoS) attack.

21) Resource management error (CVE-ID: CVE-2021-47294)

CWE-ID: CWE-399 - Resource Management Errors

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 resource management error within the nr_heartbeat_expiry(), nr_t2timer_expiry(), nr_t4timer_expiry(), nr_idletimer_expiry() and nr_t1timer_expiry() functions in net/netrom/nr_timer.c. A local user can perform a denial of service (DoS) attack.

22) NULL pointer dereference (CVE-ID: CVE-2021-47149)

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 fmvj18x_get_hwinfo() function in drivers/net/ethernet/fujitsu/fmvj18x_cs.c. A local user can perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://ubuntu.com/security/notices/USN-7865-1