Red Hat Enterprise Linux 9 update for kernel

Published: 2024-06-26

Risk	Low
Patch available	YES
Number of vulnerabilities	8
CVE-ID	CVE-2024-27397 CVE-2024-27393 CVE-2024-27403 CVE-2024-35870 CVE-2024-35960 CVE-2024-35958 CVE-2021-47400 CVE-2024-36957
CWE-ID	CWE-667 CWE-401 CWE-191 CWE-416 CWE-665 CWE-399 CWE-193
Exploitation vector	Local
Public exploit	N/A
Vulnerable software Subscribe	Red Hat Enterprise Linux Server - AUS Operating systems & Components / Operating system Red Hat Enterprise Linux for IBM z Systems - Extended Update Support Operating systems & Components / Operating system Red Hat Enterprise Linux for Power, little endian - Extended Update Support Operating systems & Components / Operating system Red Hat Enterprise Linux for ARM 64 - Extended Update Support Operating systems & Components / Operating system Red Hat Enterprise Linux for x86_64 - Extended Update Support Operating systems & Components / Operating system Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions Operating systems & Components / Operating system package or component kernel (Red Hat package) Operating systems & Components / Operating system package or component
Vendor	Red Hat Inc.

Security Bulletin

This security bulletin contains information about 8 vulnerabilities.

1) Improper locking

EUVDB-ID: #VU92027

Risk: Low

CVSSv3.1: 4.8 [AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-27397

CWE-ID: CWE-667 - Improper Locking

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper locking within the __nft_rbtree_insert(), nft_rbtree_deactivate() and nft_rbtree_gc() functions in net/netfilter/nft_set_rbtree.c, within the pipapo_get(), nft_pipapo_get(), nft_pipapo_insert(), pipapo_gc() and pipapo_deactivate() functions in net/netfilter/nft_set_pipapo.c, within the nft_rhash_key(), nft_rhash_cmp(), nft_rhash_lookup(), nft_rhash_get(), nft_rhash_update(), nft_rhash_insert() and nft_rhash_deactivate() functions in net/netfilter/nft_set_hash.c, within the nft_trans_gc_catchall_sync() and nf_tables_valid_genid() functions in net/netfilter/nf_tables_api.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux Server - AUS: 9.2

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 9.2

Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 9.2

Red Hat Enterprise Linux for ARM 64 - Extended Update Support: 9.2

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 9.2

Red Hat Enterprise Linux for x86_64 - Extended Update Support: 9.2

kernel (Red Hat package): before 5.14.0-284.71.1.el9_2

External links

http://access.redhat.com/errata/RHSA-2024:4108

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Memory leak

EUVDB-ID: #VU89353

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-27393

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a malicious guest to perform DoS attack on the target system.

The vulnerability exists due memory leak within the xennet_alloc_one_rx_buffer() function in xen-netback implementation. A malicious guest userspace process can exhaust memory resources within the guest kernel and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux Server - AUS: 9.2

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 9.2

Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 9.2

Red Hat Enterprise Linux for ARM 64 - Extended Update Support: 9.2

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 9.2

Red Hat Enterprise Linux for x86_64 - Extended Update Support: 9.2

kernel (Red Hat package): before 5.14.0-284.71.1.el9_2

External links

http://access.redhat.com/errata/RHSA-2024:4108

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Integer underflow

EUVDB-ID: #VU91669

Risk: Low

CVSSv3.1: 6.8 [AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-27403

CWE-ID: CWE-191 - Integer underflow

Exploit availability: No

Description

The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to integer underflow within the flow_offload_dst_cookie() and nft_flow_dst_release() functions in net/netfilter/nf_flow_table_core.c. A local user can execute arbitrary code.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux Server - AUS: 9.2

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 9.2

Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 9.2

Red Hat Enterprise Linux for ARM 64 - Extended Update Support: 9.2

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 9.2

Red Hat Enterprise Linux for x86_64 - Extended Update Support: 9.2

kernel (Red Hat package): before 5.14.0-284.71.1.el9_2

External links

http://access.redhat.com/errata/RHSA-2024:4108

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Use-after-free

EUVDB-ID: #VU90158

Risk: Low

CVSSv3.1: 7.7 [AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-35870

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error within the cifs_mark_tcp_ses_conns_for_reconnect() and cifs_find_smb_ses() functions in fs/smb/client/connect.c. A remote non-authenticated attacker can perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux Server - AUS: 9.2

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 9.2

Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 9.2

Red Hat Enterprise Linux for ARM 64 - Extended Update Support: 9.2

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 9.2

Red Hat Enterprise Linux for x86_64 - Extended Update Support: 9.2

kernel (Red Hat package): before 5.14.0-284.71.1.el9_2

External links

http://access.redhat.com/errata/RHSA-2024:4108

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

5) Improper Initialization

EUVDB-ID: #VU93351

Risk: Low

CVSSv3.1: 4.8 [AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-35960

CWE-ID: CWE-665 - Improper Initialization

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper initialization within the add_rule_fg() function in drivers/net/ethernet/mellanox/mlx5/core/fs_core.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux Server - AUS: 9.2

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 9.2

Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 9.2

Red Hat Enterprise Linux for ARM 64 - Extended Update Support: 9.2

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 9.2

Red Hat Enterprise Linux for x86_64 - Extended Update Support: 9.2

kernel (Red Hat package): before 5.14.0-284.71.1.el9_2

External links

http://access.redhat.com/errata/RHSA-2024:4108

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

6) Resource management error

EUVDB-ID: #VU93255

Risk: Low

CVSSv3.1: 4.8 [AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-35958

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to resource management error within the ena_unmap_tx_buff() and ena_free_tx_bufs() functions in drivers/net/ethernet/amazon/ena/ena_netdev.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux Server - AUS: 9.2

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 9.2

Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 9.2

Red Hat Enterprise Linux for ARM 64 - Extended Update Support: 9.2

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 9.2

Red Hat Enterprise Linux for x86_64 - Extended Update Support: 9.2

kernel (Red Hat package): before 5.14.0-284.71.1.el9_2

External links

http://access.redhat.com/errata/RHSA-2024:4108

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

7) Resource management error

EUVDB-ID: #VU93185

Risk: Low

CVSSv3.1: 4.8 [AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-47400

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to resource management error within the hns3_nic_net_open() function in drivers/net/ethernet/hisilicon/hns3/hns3_enet.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux Server - AUS: 9.2

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 9.2

Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 9.2

Red Hat Enterprise Linux for ARM 64 - Extended Update Support: 9.2

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 9.2

Red Hat Enterprise Linux for x86_64 - Extended Update Support: 9.2

kernel (Red Hat package): before 5.14.0-284.71.1.el9_2

External links

http://access.redhat.com/errata/RHSA-2024:4108

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

8) Off-by-one

EUVDB-ID: #VU91171

Risk: Low

CVSSv3.1: 4.8 [AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-36957

CWE-ID: CWE-193 - Off-by-one Error

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to an off-by-one error within the rvu_dbg_qsize_write() function in drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux Server - AUS: 9.2

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 9.2

Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 9.2

Red Hat Enterprise Linux for ARM 64 - Extended Update Support: 9.2

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 9.2

Red Hat Enterprise Linux for x86_64 - Extended Update Support: 9.2

kernel (Red Hat package): before 5.14.0-284.71.1.el9_2

External links

http://access.redhat.com/errata/RHSA-2024:4108

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.