CVE-2023-1194: Use-after-free in parse_lease_state()

Q: What is the severity of CVE-2023-1194?

CVE-2023-1194 is considered a critical vulnerability due to its potential for causing an out-of-bounds memory read, which could lead to arbitrary code execution.

Q: How do I fix CVE-2023-1194?

To fix CVE-2023-1194, update the Linux kernel to version 6.4 or apply the latest patches provided by your distribution.

Q: What versions of Linux are affected by CVE-2023-1194?

CVE-2023-1194 affects multiple versions of the Linux kernel, specifically those between 5.15 and 6.4-rc5.

Q: Can CVE-2023-1194 be exploited remotely?

Yes, CVE-2023-1194 can be exploited remotely by sending a specially crafted CREATE command to the KSMBD service.

Q: What impact does CVE-2023-1194 have on system security?

The impact of CVE-2023-1194 could allow attackers to execute arbitrary code, potentially compromising the security and integrity of affected systems.

Published Dec 16, 2022

Updated

An out-of-bounds (OOB) memory read flaw was found in parseleasestate in KSMBD implemetation of in-kernel samba server and CIFS in the Linux kernel. When attacker sends CREATE command with malform payload to KSMBD, because of missing check NameOffset in function parseleasestate(), the createcontext object can access invalid memory.

Refer https://www.spinics.net/lists/stable-commits/msg303065.html

Other sources

An out-of-bounds (OOB) memory read flaw was found in parseleasestate in the KSMBD implementation of the in-kernel samba server and CIFS in the Linux kernel. When an attacker sends the CREATE command with a malformed payload to KSMBD, due to a missing check of NameOffset in the parseleasestate() function, the createcontext object can access invalid memory.

— Launchpad

Affected Software

113 affected componentsFixes available

Linux Linux kernel>=5.15<5.15.145

Linux Linux kernel>=5.16<6.1.34

Linux Linux kernel>=6.2<6.3.8

Linux Linux kernel=6.4-rc1

Linux Linux kernel=6.4-rc2

Linux Linux kernel=6.4-rc3

Linux Linux kernel=6.4-rc4

Linux Linux kernel=6.4-rc5

Fedoraproject Fedora=37

debian/linux

5.10.223-15.10.234-16.1.129-16.1.135-16.12.25-16.12.27-1

redhat/kernel<6.4

6.4

ubuntu/linux-hwe-edge*

ubuntu/linux-aws-5.0*

ubuntu/linux-aws-5.3*

ubuntu/linux-azure*

ubuntu/linux-azure-5.3*

ubuntu/linux-azure-edge*

ubuntu/linux-gcp*

ubuntu/linux-gcp-5.3*

ubuntu/linux-gke-4.15*

ubuntu/linux-gke-5.4*

ubuntu/linux-gkeop-5.4*

ubuntu/linux-hwe*

ubuntu/linux-oem*

ubuntu/linux-oracle-5.0*

ubuntu/linux-oracle-5.3*

ubuntu/linux-aws-5.15<5.15.0-1057.63~20.04.1

5.15.0-1057.63~20.04.1

ubuntu/linux-azure-5.15<5.15.0-1060.69~20.04.1

5.15.0-1060.69~20.04.1

ubuntu/linux-gcp-5.15<5.15.0-1055.63~20.04.1

5.15.0-1055.63~20.04.1

ubuntu/linux-gkeop-5.15<5.15.0-1040.46~20.04.1

5.15.0-1040.46~20.04.1

ubuntu/linux-hwe-5.15<5.15.0-102.112~20.04.1

5.15.0-102.112~20.04.1

ubuntu/linux-ibm-5.15<5.15.0-1050.53~20.04.1

5.15.0-1050.53~20.04.1

ubuntu/linux-intel-iotg-5.15<5.15.0-1052.58~20.04.1

5.15.0-1052.58~20.04.1

ubuntu/linux-lowlatency-hwe-5.15<5.15.0-102.112~20.04.1

5.15.0-102.112~20.04.1

ubuntu/linux-nvidia-tegra-5.15<5.15.0-1025.25~20.04.1

5.15.0-1025.25~20.04.1

ubuntu/linux-oracle-5.15<5.15.0-1055.61~20.04.1

5.15.0-1055.61~20.04.1

ubuntu/linux-riscv-5.15<5.15.0-1053.57~20.04.1

5.15.0-1053.57~20.04.1

ubuntu/linux-aws-5.11*

ubuntu/linux-aws-5.13*

ubuntu/linux-aws-5.8*

ubuntu/linux-azure-5.11*

ubuntu/linux-azure-5.13*

ubuntu/linux-azure-5.8*

ubuntu/linux-gcp-5.11*

ubuntu/linux-gcp-5.13*

ubuntu/linux-gcp-5.8*

ubuntu/linux-gke-5.15*

ubuntu/linux-hwe-5.11*

ubuntu/linux-hwe-5.13*

ubuntu/linux-hwe-5.8*

ubuntu/linux-intel-5.13*

ubuntu/linux-oem-5.10*

ubuntu/linux-oem-5.13*

ubuntu/linux-oem-5.6*

ubuntu/linux-oracle-5.11*

ubuntu/linux-oracle-5.13*

ubuntu/linux-oracle-5.8*

ubuntu/linux-raspi2*

ubuntu/linux-riscv*

ubuntu/linux-riscv-5.11*

ubuntu/linux-riscv-5.8*

ubuntu/linux<5.15.0-102.112

5.15.0-102.112

ubuntu/linux-allwinner-5.19*

ubuntu/linux-aws<5.15.0-1057.63

5.15.0-1057.63

ubuntu/linux-aws-5.19*

ubuntu/linux-aws-6.2*

ubuntu/linux-azure<5.15.0-1060.69

5.15.0-1060.69

ubuntu/linux-azure-5.19*

ubuntu/linux-azure-6.2*

ubuntu/linux-azure-fde<5.15.0-1060.69.1

5.15.0-1060.69.1

ubuntu/linux-azure-fde-5.19*

ubuntu/linux-azure-fde-6.2*

ubuntu/linux-gcp<5.15.0-1055.63

5.15.0-1055.63

ubuntu/linux-gcp-5.19*

ubuntu/linux-gcp-6.2*

ubuntu/linux-gke<5.15.0-1054.59

5.15.0-1054.59

ubuntu/linux-gkeop<5.15.0-1040.46

5.15.0-1040.46

ubuntu/linux-hwe-5.19*

ubuntu/linux-hwe-6.2*

ubuntu/linux-ibm<5.15.0-1050.53

5.15.0-1050.53

ubuntu/linux-intel-iotg<5.15.0-1052.58

5.15.0-1052.58

ubuntu/linux-kvm<5.15.0-1054.59

5.15.0-1054.59

ubuntu/linux-lowlatency<5.15.0-102.112

5.15.0-102.112

ubuntu/linux-lowlatency-hwe-5.19*

ubuntu/linux-lowlatency-hwe-6.2*

ubuntu/linux-nvidia<5.15.0-1048.48

5.15.0-1048.48

ubuntu/linux-nvidia-6.2*

ubuntu/linux-nvidia-tegra<5.15.0-1025.25

5.15.0-1025.25

ubuntu/linux-nvidia-tegra-igx<5.15.0-1012.12

5.15.0-1012.12

ubuntu/linux-oem-5.17*

ubuntu/linux-oem-6.0*

ubuntu/linux-oem-6.1*

ubuntu/linux-oracle<5.15.0-1055.61

5.15.0-1055.61

ubuntu/linux-raspi<5.15.0-1050.53

5.15.0-1050.53

ubuntu/linux-realtime*

ubuntu/linux-riscv*

ubuntu/linux-riscv-5.19*

ubuntu/linux-starfive-5.19*

ubuntu/linux-starfive-6.2*

ubuntu/linux-xilinx-zynqmp<5.15.0-1030.34

5.15.0-1030.34

ubuntu/linux-bluefield<5.15.0-1040.42

5.15.0-1040.42

ubuntu/linux-intel-iot-realtime<5.15.0-1050.52

5.15.0-1050.52

ubuntu/linux-realtime<5.15.0-1058.66

5.15.0-1058.66

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux-aws-fips<5.15.0-1057.63+fips1

5.15.0-1057.63+fips1

ubuntu/linux-azure-fips<5.15.0-1060.69+fips1

5.15.0-1060.69+fips1

ubuntu/linux-fips<5.15.0-102.112+fips1

5.15.0-102.112+fips1

ubuntu/linux-gcp-fips<5.15.0-1055.63+fips2

5.15.0-1055.63+fips2

ubuntu/linux-raspi-realtime*

ubuntu/linux-vmware*

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade debian/linux to a version that resolves this vulnerability.
Fixed in 5.10.223-1Fixed in 5.10.234-1Fixed in 6.1.129-1Fixed in 6.1.135-1Fixed in 6.12.25-1Fixed in 6.12.27-1
Upgrade
Upgrade redhat/kernel to a version that resolves this vulnerability.
Fixed in 6.4
Upgrade
Upgrade ubuntu/linux-aws-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1057.63~20.04.1
Upgrade
Upgrade ubuntu/linux-azure-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1060.69~20.04.1
Upgrade
Upgrade ubuntu/linux-gcp-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1055.63~20.04.1
Upgrade
Upgrade ubuntu/linux-gkeop-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1040.46~20.04.1
Upgrade
Upgrade ubuntu/linux-hwe-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-102.112~20.04.1
Upgrade
Upgrade ubuntu/linux-ibm-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1050.53~20.04.1
Upgrade
Upgrade ubuntu/linux-intel-iotg-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1052.58~20.04.1
Upgrade
Upgrade ubuntu/linux-lowlatency-hwe-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-102.112~20.04.1
Upgrade
Upgrade ubuntu/linux-nvidia-tegra-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1025.25~20.04.1
Upgrade
Upgrade ubuntu/linux-oracle-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1055.61~20.04.1
Upgrade
Upgrade ubuntu/linux-riscv-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1053.57~20.04.1
Upgrade
Upgrade ubuntu/linux to a version that resolves this vulnerability.
Fixed in 5.15.0-102.112
Upgrade
Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.
Fixed in 5.15.0-1057.63
Upgrade
Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.
Fixed in 5.15.0-1060.69
Upgrade
Upgrade ubuntu/linux-azure-fde to a version that resolves this vulnerability.
Fixed in 5.15.0-1060.69.1
Upgrade
Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.
Fixed in 5.15.0-1055.63
Upgrade
Upgrade ubuntu/linux-gke to a version that resolves this vulnerability.
Fixed in 5.15.0-1054.59
Upgrade
Upgrade ubuntu/linux-gkeop to a version that resolves this vulnerability.
Fixed in 5.15.0-1040.46
Upgrade
Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.
Fixed in 5.15.0-1050.53
Upgrade
Upgrade ubuntu/linux-intel-iotg to a version that resolves this vulnerability.
Fixed in 5.15.0-1052.58
Upgrade
Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.
Fixed in 5.15.0-1054.59
Upgrade
Upgrade ubuntu/linux-lowlatency to a version that resolves this vulnerability.
Fixed in 5.15.0-102.112
Upgrade
Upgrade ubuntu/linux-nvidia to a version that resolves this vulnerability.
Fixed in 5.15.0-1048.48
Upgrade
Upgrade ubuntu/linux-nvidia-tegra to a version that resolves this vulnerability.
Fixed in 5.15.0-1025.25
Upgrade
Upgrade ubuntu/linux-nvidia-tegra-igx to a version that resolves this vulnerability.
Fixed in 5.15.0-1012.12
Upgrade
Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.
Fixed in 5.15.0-1055.61
Upgrade
Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.
Fixed in 5.15.0-1050.53
Upgrade
Upgrade ubuntu/linux-xilinx-zynqmp to a version that resolves this vulnerability.
Fixed in 5.15.0-1030.34
Upgrade
Upgrade ubuntu/linux-bluefield to a version that resolves this vulnerability.
Fixed in 5.15.0-1040.42
Upgrade
Upgrade ubuntu/linux-intel-iot-realtime to a version that resolves this vulnerability.
Fixed in 5.15.0-1050.52
Upgrade
Upgrade ubuntu/linux-realtime to a version that resolves this vulnerability.
Fixed in 5.15.0-1058.66
Upgrade
Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.
Fixed in 5.15.0-1057.63+fips1
Upgrade
Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.
Fixed in 5.15.0-1060.69+fips1
Upgrade
Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.
Fixed in 5.15.0-102.112+fips1
Upgrade
Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.
Fixed in 5.15.0-1055.63+fips2

Event History

Dec 16, 2022

Data Sourced

via Red Hat·06:05 AM

DescriptionSeverityAffected Software

Nov 3, 2023

CVE Published

via MITRE·07:41 AM

Data Sourced

via MITRE·07:41 AM

DescriptionSeverityWeakness

Data Sourced

via OSV·08:15 AM

DescriptionSeverityAffected Software

Frequently Asked Questions

What is the severity of CVE-2023-1194?

CVE-2023-1194 is considered a critical vulnerability due to its potential for causing an out-of-bounds memory read, which could lead to arbitrary code execution.

How do I fix CVE-2023-1194?

To fix CVE-2023-1194, update the Linux kernel to version 6.4 or apply the latest patches provided by your distribution.

What versions of Linux are affected by CVE-2023-1194?

CVE-2023-1194 affects multiple versions of the Linux kernel, specifically those between 5.15 and 6.4-rc5.

Can CVE-2023-1194 be exploited remotely?

Yes, CVE-2023-1194 can be exploited remotely by sending a specially crafted CREATE command to the KSMBD service.

What impact does CVE-2023-1194 have on system security?

The impact of CVE-2023-1194 could allow attackers to execute arbitrary code, potentially compromising the security and integrity of affected systems.

CVE-2023-1194: Use-after-free in parse_lease_state()

Other sources

Affected Software

Remediation

Event History

Frequently Asked Questions

What is the severity of CVE-2023-1194?

How do I fix CVE-2023-1194?

What versions of Linux are affected by CVE-2023-1194?

Can CVE-2023-1194 be exploited remotely?

What impact does CVE-2023-1194 have on system security?

Company

Resources

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