CVE-2023-52852: f2fs: compress: fix to avoid use-after-free on dic

Q: What is the severity of CVE-2023-52852?

CVE-2023-52852 is classified as a medium severity vulnerability in the Linux kernel which could lead to a use-after-free situation.

Q: How do I fix CVE-2023-52852?

To fix CVE-2023-52852, upgrade the Linux kernel to a version that is not affected, specifically to 5.15.139 or later, 6.1.63 or later, 6.5.12 or later, or 6.6.2 or later.

Q: Which versions of the Linux kernel are affected by CVE-2023-52852?

CVE-2023-52852 affects Linux kernel versions from 5.13.19 to 5.15.139, 5.16 to 6.1.63, 6.2 to 6.5.12, and the version 6.6.

Q: Can CVE-2023-52852 be exploited remotely?

CVE-2023-52852 does not specifically indicate remote exploitability, but use-after-free vulnerabilities can potentially be exploited in various contexts.

Q: What are the potential impacts of CVE-2023-52852?

The potential impacts of CVE-2023-52852 include system crashes, data corruption, or arbitrary code execution if exploited.

Published May 21, 2024

Updated

In the Linux kernel, the following vulnerability has been resolved:

f2fs: compress: fix to avoid use-after-free on dic

Call trace: memcpy+0x128/0x250 f2fsreadmultipages+0x940/0xf7c f2fsmpagereadpages+0x5a8/0x624 f2fsreadahead+0x5c/0x110 pagecacheraunbounded+0x1b8/0x590 dosyncmmapreadahead+0x1dc/0x2e4 filemapfault+0x254/0xa8c f2fsfilemapfault+0x2c/0x104 dofault+0x7c/0x238 dohandlemmfault+0x11bc/0x2d14 domemabort+0x3a8/0x1004 el0da+0x3c/0xa0 el0t64synchandler+0xc4/0xec el0t64sync+0x1b4/0x1b8

In f2fsreadmultipages(), once f2fsdecompresscluster() was called if we hit cached page in compressinode's cache, dic may be released, it needs break the loop rather than continuing it, in order to avoid accessing invalid dic pointer.

Affected Software

117 affected componentsFixes available

Linux Linux kernel>=5.13.19<5.15.139

Linux Linux kernel>=5.16<6.1.63

Linux Linux kernel>=6.2<6.5.12

Linux Linux kernel>=6.6<6.6.2

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<5.15.0-1056.61~20.04.1

5.15.0-1056.61~20.04.1

ubuntu/linux-azure-5.15<5.15.0-1058.66~20.04.2

5.15.0-1058.66~20.04.2

ubuntu/linux-gcp-5.15<5.15.0-1053.61~20.04.1

5.15.0-1053.61~20.04.1

ubuntu/linux-gkeop-5.15<5.15.0-1038.44~20.04.1

5.15.0-1038.44~20.04.1

ubuntu/linux-hwe-5.15<5.15.0-100.110~20.04.1

5.15.0-100.110~20.04.1

ubuntu/linux-ibm-5.15<5.15.0-1048.51~20.04.1

5.15.0-1048.51~20.04.1

ubuntu/linux-intel-iotg-5.15<5.15.0-1050.56~20.04.1

5.15.0-1050.56~20.04.1

ubuntu/linux-lowlatency-hwe-5.15<5.15.0-100.110~20.04.1

5.15.0-100.110~20.04.1

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<5.15.0-1053.59~20.04.1

5.15.0-1053.59~20.04.1

ubuntu/linux-riscv-5.15<5.15.0-1051.55~20.04.1

5.15.0-1051.55~20.04.1

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-azure-fde*

ubuntu/linux-gcp-5.11*

ubuntu/linux-gcp-5.13*

ubuntu/linux-gcp-5.8*

ubuntu/linux-gke*

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<5.15.0-100.110

5.15.0-100.110

ubuntu/linux-allwinner-5.19*

ubuntu/linux-aws<5.15.0-1056.61

5.15.0-1056.61

ubuntu/linux-aws-5.19*

ubuntu/linux-aws-6.2*

ubuntu/linux-aws-6.5*

ubuntu/linux-azure<5.15.0-1058.66

5.15.0-1058.66

ubuntu/linux-azure-5.19*

ubuntu/linux-azure-6.2*

ubuntu/linux-azure-6.5*

ubuntu/linux-azure-fde<5.15.0-1058.66.1

5.15.0-1058.66.1

ubuntu/linux-azure-fde-5.19*

ubuntu/linux-azure-fde-6.2*

ubuntu/linux-gcp<5.15.0-1053.61

5.15.0-1053.61

ubuntu/linux-gcp-5.19*

ubuntu/linux-gcp-6.2*

ubuntu/linux-gcp-6.5*

ubuntu/linux-gke<5.15.0-1052.57

5.15.0-1052.57

ubuntu/linux-gkeop<5.15.0-1038.44

5.15.0-1038.44

ubuntu/linux-hwe-5.19*

ubuntu/linux-hwe-6.2*

ubuntu/linux-hwe-6.5*

ubuntu/linux-ibm<5.15.0-1048.51

5.15.0-1048.51

ubuntu/linux-intel-iotg<5.15.0-1050.56

5.15.0-1050.56

ubuntu/linux-kvm<5.15.0-1052.57

5.15.0-1052.57

ubuntu/linux-lowlatency<5.15.0-100.110

5.15.0-100.110

ubuntu/linux-lowlatency-hwe-5.19*

ubuntu/linux-lowlatency-hwe-6.2*

ubuntu/linux-lowlatency-hwe-6.5*

ubuntu/linux-nvidia<5.15.0-1046.46

5.15.0-1046.46

ubuntu/linux-nvidia-6.2*

ubuntu/linux-nvidia-6.5<6.5.0-1014.14

6.5.0-1014.14

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-oem-6.5*

ubuntu/linux-oracle<5.15.0-1053.59

5.15.0-1053.59

ubuntu/linux-oracle-6.5*

ubuntu/linux-raspi<5.15.0-1048.51

5.15.0-1048.51

ubuntu/linux-realtime*

ubuntu/linux-riscv*

ubuntu/linux-riscv-5.19*

ubuntu/linux-riscv-6.5*

ubuntu/linux-starfive-5.19*

ubuntu/linux-starfive-6.2*

ubuntu/linux-starfive-6.5*

ubuntu/linux-xilinx-zynqmp<5.15.0-1030.34

5.15.0-1030.34

ubuntu/linux-bluefield<5.15.0-1037.39

5.15.0-1037.39

ubuntu/linux-intel-iot-realtime<5.15.0-1048.50

5.15.0-1048.50

ubuntu/linux-realtime<5.15.0-1056.63

5.15.0-1056.63

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux-aws-fips<5.15.0-1056.61+fips1

5.15.0-1056.61+fips1

ubuntu/linux-fips<5.15.0-100.110+fips1

5.15.0-100.110+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 ubuntu/linux-aws-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1056.61~20.04.1
Upgrade
Upgrade ubuntu/linux-azure-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1058.66~20.04.2
Upgrade
Upgrade ubuntu/linux-gcp-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1053.61~20.04.1
Upgrade
Upgrade ubuntu/linux-gkeop-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1038.44~20.04.1
Upgrade
Upgrade ubuntu/linux-hwe-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-100.110~20.04.1
Upgrade
Upgrade ubuntu/linux-ibm-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1048.51~20.04.1
Upgrade
Upgrade ubuntu/linux-intel-iotg-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1050.56~20.04.1
Upgrade
Upgrade ubuntu/linux-lowlatency-hwe-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-100.110~20.04.1
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 5.15.0-1053.59~20.04.1
Upgrade
Upgrade ubuntu/linux-riscv-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1051.55~20.04.1
Upgrade
Upgrade ubuntu/linux to a version that resolves this vulnerability.
Fixed in 5.15.0-100.110
Upgrade
Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.
Fixed in 5.15.0-1056.61
Upgrade
Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.
Fixed in 5.15.0-1058.66
Upgrade
Upgrade ubuntu/linux-azure-fde to a version that resolves this vulnerability.
Fixed in 5.15.0-1058.66.1
Upgrade
Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.
Fixed in 5.15.0-1053.61
Upgrade
Upgrade ubuntu/linux-gke to a version that resolves this vulnerability.
Fixed in 5.15.0-1052.57
Upgrade
Upgrade ubuntu/linux-gkeop to a version that resolves this vulnerability.
Fixed in 5.15.0-1038.44
Upgrade
Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.
Fixed in 5.15.0-1048.51
Upgrade
Upgrade ubuntu/linux-intel-iotg to a version that resolves this vulnerability.
Fixed in 5.15.0-1050.56
Upgrade
Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.
Fixed in 5.15.0-1052.57
Upgrade
Upgrade ubuntu/linux-lowlatency to a version that resolves this vulnerability.
Fixed in 5.15.0-100.110
Upgrade
Upgrade ubuntu/linux-nvidia to a version that resolves this vulnerability.
Fixed in 5.15.0-1046.46
Upgrade
Upgrade ubuntu/linux-nvidia-6.5 to a version that resolves this vulnerability.
Fixed in 6.5.0-1014.14
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 5.15.0-1053.59
Upgrade
Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.
Fixed in 5.15.0-1048.51
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 5.15.0-1037.39
Upgrade
Upgrade ubuntu/linux-intel-iot-realtime to a version that resolves this vulnerability.
Fixed in 5.15.0-1048.50
Upgrade
Upgrade ubuntu/linux-realtime to a version that resolves this vulnerability.
Fixed in 5.15.0-1056.63
Upgrade
Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.
Fixed in 5.15.0-1056.61+fips1
Upgrade
Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.
Fixed in 5.15.0-100.110+fips1
Upgrade
Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.
Fixed in 5.15.0-1055.63+fips2

Event History

May 21, 2024

CVE Published

via MITRE·03:31 PM

Data Sourced

via MITRE·03:31 PM

DescriptionSeverity

Data Sourced

via OSV·04:15 PM

DescriptionSeverityAffected Software

Data Sourced

via NVD·04:15 PM

RemedyDescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

What is the severity of CVE-2023-52852?

CVE-2023-52852 is classified as a medium severity vulnerability in the Linux kernel which could lead to a use-after-free situation.

How do I fix CVE-2023-52852?

To fix CVE-2023-52852, upgrade the Linux kernel to a version that is not affected, specifically to 5.15.139 or later, 6.1.63 or later, 6.5.12 or later, or 6.6.2 or later.

Which versions of the Linux kernel are affected by CVE-2023-52852?

CVE-2023-52852 affects Linux kernel versions from 5.13.19 to 5.15.139, 5.16 to 6.1.63, 6.2 to 6.5.12, and the version 6.6.

Can CVE-2023-52852 be exploited remotely?

CVE-2023-52852 does not specifically indicate remote exploitability, but use-after-free vulnerabilities can potentially be exploited in various contexts.

What are the potential impacts of CVE-2023-52852?

The potential impacts of CVE-2023-52852 include system crashes, data corruption, or arbitrary code execution if exploited.

CVE-2023-52852: f2fs: compress: fix to avoid use-after-free on dic

Affected Software

Remediation

Event History

Frequently Asked Questions

What is the severity of CVE-2023-52852?

How do I fix CVE-2023-52852?

Which versions of the Linux kernel are affected by CVE-2023-52852?

Can CVE-2023-52852 be exploited remotely?

What are the potential impacts of CVE-2023-52852?

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