Ubuntu update for linux



Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2023-2124
CVE-2023-2176
CWE-ID CWE-125
Exploitation vector Local
Public exploit N/A
Vulnerable software
Ubuntu
Operating systems & Components / Operating system

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

linux-image-lowlatency-64k (Ubuntu package)
Operating systems & Components / Operating system package or component

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

linux-image-6.2.0-1007-aws (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-6.2.0-25-generic-64k (Ubuntu package)
Operating systems & Components / Operating system package or component

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

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

linux-image-6.2.0-25-generic-lpae (Ubuntu package)
Operating systems & Components / Operating system package or component

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

linux-image-6.2.0-25-generic (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-6.2.0-1008-lowlatency-64k (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-6.2.0-1008-kvm (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-6.2.0-1008-lowlatency (Ubuntu package)
Operating systems & Components / Operating system package or component

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

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

linux-image-generic-64k (Ubuntu package)
Operating systems & Components / Operating system package or component

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

linux-image-6.2.0-1008-raspi (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds read

EUVDB-ID: #VU75323

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-2023-2124

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to a boundary condition within the XFS subsystem in Linux kernel. A local user can trigger an out-of-bounds read error and crash the kernel.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 23.04

linux-image-raspi (Ubuntu package): before 6.2.0.1008.11

linux-image-lowlatency-64k (Ubuntu package): before 6.2.0.1008.8

linux-image-lowlatency (Ubuntu package): before 6.2.0.1008.8

linux-image-6.2.0-1007-aws (Ubuntu package): before 6.2.0-1007.7

linux-image-6.2.0-25-generic-64k (Ubuntu package): before 6.2.0-25.25

linux-image-generic-lpae (Ubuntu package): before 6.2.0.25.25

linux-image-kvm (Ubuntu package): before 6.2.0.1008.8

linux-image-6.2.0-25-generic-lpae (Ubuntu package): before 6.2.0-25.25

linux-image-raspi-nolpae (Ubuntu package): before 6.2.0.1008.11

linux-image-6.2.0-25-generic (Ubuntu package): before 6.2.0-25.25

linux-image-6.2.0-1008-lowlatency-64k (Ubuntu package): before 6.2.0-1008.8

linux-image-6.2.0-1008-kvm (Ubuntu package): before 6.2.0-1008.8

linux-image-6.2.0-1008-lowlatency (Ubuntu package): before 6.2.0-1008.8

linux-image-aws (Ubuntu package): before 6.2.0.1007.8

linux-image-generic (Ubuntu package): before 6.2.0.25.25

linux-image-generic-64k (Ubuntu package): before 6.2.0.25.25

linux-image-virtual (Ubuntu package): before 6.2.0.25.25

linux-image-6.2.0-1008-raspi (Ubuntu package): before 6.2.0-1008.10

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6224-1


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) Out-of-bounds read

EUVDB-ID: #VU75995

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-2176

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to a boundary condition within the compare_netdev_and_ip() function in drivers/infiniband/core/cma.c in RDMA in the Linux Kernel. A local user can trigger an out-of-bounds read error and read contents of memory on the system.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 23.04

linux-image-raspi (Ubuntu package): before 6.2.0.1008.11

linux-image-lowlatency-64k (Ubuntu package): before 6.2.0.1008.8

linux-image-lowlatency (Ubuntu package): before 6.2.0.1008.8

linux-image-6.2.0-1007-aws (Ubuntu package): before 6.2.0-1007.7

linux-image-6.2.0-25-generic-64k (Ubuntu package): before 6.2.0-25.25

linux-image-generic-lpae (Ubuntu package): before 6.2.0.25.25

linux-image-kvm (Ubuntu package): before 6.2.0.1008.8

linux-image-6.2.0-25-generic-lpae (Ubuntu package): before 6.2.0-25.25

linux-image-raspi-nolpae (Ubuntu package): before 6.2.0.1008.11

linux-image-6.2.0-25-generic (Ubuntu package): before 6.2.0-25.25

linux-image-6.2.0-1008-lowlatency-64k (Ubuntu package): before 6.2.0-1008.8

linux-image-6.2.0-1008-kvm (Ubuntu package): before 6.2.0-1008.8

linux-image-6.2.0-1008-lowlatency (Ubuntu package): before 6.2.0-1008.8

linux-image-aws (Ubuntu package): before 6.2.0.1007.8

linux-image-generic (Ubuntu package): before 6.2.0.25.25

linux-image-generic-64k (Ubuntu package): before 6.2.0.25.25

linux-image-virtual (Ubuntu package): before 6.2.0.25.25

linux-image-6.2.0-1008-raspi (Ubuntu package): before 6.2.0-1008.10

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6224-1


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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