Ubuntu update for linux-azure



Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2023-52927
CVE-2023-52664
CWE-ID CWE-20
CWE-415
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Ubuntu
Operating systems & Components / Operating system

linux-image-azure-fde (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-azure-cvm (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-azure (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-azure-lts-22.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-azure-fde-lts-22.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.15.0-1088-azure-fde (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.15.0-1088-azure (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU105746

Risk: Low

CVSSv4.0: 4.3 [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]

CVE-ID: CVE-2023-52927

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to improper input validation within the nft_ct_set_zone_eval() and nft_ct_tmpl_alloc_pcpu() functions in net/netfilter/nft_ct.c, within the EXPORT_SYMBOL_GPL() and nf_ct_find_expectation() functions in net/netfilter/nf_conntrack_expect.c, within the init_conntrack() function in net/netfilter/nf_conntrack_core.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux-azure to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 22.04

linux-image-azure-fde (Ubuntu package): before 5.15.0.1088.97~20.04.1.63

linux-image-azure-cvm (Ubuntu package): before 5.15.0.1088.97~20.04.1

linux-image-azure (Ubuntu package): before 5.15.0.1088.97~20.04.1

linux-image-azure-lts-22.04 (Ubuntu package): before 5.15.0.1088.86

linux-image-azure-fde-lts-22.04 (Ubuntu package): before 5.15.0.1088.97.65

linux-image-5.15.0-1088-azure-fde (Ubuntu package): before 5.15.0-1088.97~20.04.1.1

linux-image-5.15.0-1088-azure (Ubuntu package): before 5.15.0-1088.97~20.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-7494-4


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) Double free

EUVDB-ID: #VU90893

Risk: Low

CVSSv4.0: 4.3 [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]

CVE-ID: CVE-2023-52664

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

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

The vulnerability exists due to a double free error within the aq_vec_ring_alloc() function in drivers/net/ethernet/aquantia/atlantic/aq_vec.c, within the aq_get_rxpages(), aq_ring_alloc(), aq_ring_rx_alloc() and aq_ring_hwts_rx_alloc() functions in drivers/net/ethernet/aquantia/atlantic/aq_ring.c, within the aq_ptp_ring_alloc() function in drivers/net/ethernet/aquantia/atlantic/aq_ptp.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux-azure to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 22.04

linux-image-azure-fde (Ubuntu package): before 5.15.0.1088.97~20.04.1.63

linux-image-azure-cvm (Ubuntu package): before 5.15.0.1088.97~20.04.1

linux-image-azure (Ubuntu package): before 5.15.0.1088.97~20.04.1

linux-image-azure-lts-22.04 (Ubuntu package): before 5.15.0.1088.86

linux-image-azure-fde-lts-22.04 (Ubuntu package): before 5.15.0.1088.97.65

linux-image-5.15.0-1088-azure-fde (Ubuntu package): before 5.15.0-1088.97~20.04.1.1

linux-image-5.15.0-1088-azure (Ubuntu package): before 5.15.0-1088.97~20.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-7494-4


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.



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