SB20240806212 - Amazon Linux AMI update for kernel

Description

This security bulletin contains information about 13 vulnerabilities.

1) Integer overflow (CVE-ID: CVE-2024-23307)

CWE-ID: CWE-190 - Integer overflow

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 integer overflow in raid5_cache_count() function. A local user can trigger an integer overflow and execute arbitrary code with elevated privileges.

2) Code Injection (CVE-ID: CVE-2024-25742)

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

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

The vulnerability allows a malicious hypervisor to escalate privileges on the system.

The vulnerability exists due to improper input validation when handling interrupts. A malicious hypervisor can inject interrupt 0x80, which is used by Linux for legacy 32-bit system calls, and arbitrarily change the value stored in EAX while a SEV VM is running.

3) Error handling (CVE-ID: CVE-2024-26584)

CWE-ID: CWE-388 - Error Handling

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

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

The vulnerability exists due to an error when handling backlogging of crypto requests in net/tls/tls_sw.c. A remote attacker can send specially crafted traffic to the system and perform a denial of service attack.

4) Race condition (CVE-ID: CVE-2024-26585)

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

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

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

The vulnerability exists due to a race condition within the tls_encrypt_done() function in net/tls/tls_sw.c. A remote attacker user can send specially crafted requests to the system and perform a denial of service (DoS) attack.

5) Improper access control (CVE-ID: CVE-2024-26642)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/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 access restrictions within the nf_tables_newset() function in net/netfilter/nf_tables_api.c. A local user can set arbitrary timeouts, which can result in a denial of service condition.

6) Race condition (CVE-ID: CVE-2024-26643)

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 nf_tables_unbind_set() function in net/netfilter/nf_tables_api.c. A local user can exploit the race and escalate privileges on the system.

7) Out-of-bounds read (CVE-ID: CVE-2024-26815)

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 NLA_POLICY_MAX() function in net/sched/sch_taprio.c. A local user can perform a denial of service (DoS) attack.

8) Use-after-free (CVE-ID: CVE-2024-26865)

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 tcp_twsk_purge() function in net/ipv4/tcp_minisocks.c. A local user can escalate privileges on the system.

9) Buffer overflow (CVE-ID: CVE-2024-26883)

CWE-ID: CWE-119 - Memory corruption

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 boundary error within the stack_map_alloc() function in kernel/bpf/stackmap.c on a 32-bit platform. A local user can trigger memory corruption and execute arbitrary code with elevated privileges.

10) Use-after-free (CVE-ID: CVE-2024-26898)

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 tx() function in drivers/block/aoe/aoenet.c, within the aoecmd_cfg_pkts() function in drivers/block/aoe/aoecmd.c. A local user can escalate privileges on the system.

11) Input validation error (CVE-ID: CVE-2024-35801)

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 fpu__init_cpu_xstate() function in arch/x86/kernel/fpu/xstate.c. A local user can perform a denial of service (DoS) attack.

12) Improper error handling (CVE-ID: CVE-2024-35809)

CWE-ID: CWE-388 - Error Handling

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 error handling within the pci_device_remove() function in drivers/pci/pci-driver.c. A local user can perform a denial of service (DoS) attack.

13) Input validation error (CVE-ID: CVE-2024-36031)

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 __key_instantiate_and_link() function in security/keys/key.c. A local user can perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://alas.aws.amazon.com/AL2023/ALAS-2024-585.html