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Vulnerability · Published Mar 2, 2024 · Assigned by Linux

CVE-2023-52526erofs: fix memory leak of LZMA global compressed deduplication

Medium 5.5

In plain English

A medium-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 87.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: erofs: fix memory leak of LZMA global compressed deduplication When stressing microLZMA EROFS images with the new global compressed deduplication feature enabled (`-Ededupe`), I found some short-lived temporary pages weren't properly released, which could slowly cause unexpected OOMs hours later. Let's fix it now (LZ4 and DEFLATE don't have this issue.)

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.64-1DEBIAN-CVE-2023-52526
Debian:13linux6.5.8-1DEBIAN-CVE-2023-52526
Debian:14linux6.5.8-1DEBIAN-CVE-2023-52526
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-gcp-6.56.5.0-1013.13~22.04.1UBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-hwe-6.56.5.0-17.17~22.04.1UBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.56.5.0-17.17.1.1.1~22.04.1UBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-nvidia-6.56.5.0-1014.14UBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-oem-6.56.5.0-1014.15UBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-oracle-6.56.5.0-1015.15~22.04.1UBUNTU-CVE-2023-52526
Ubuntu:24.04:LTSlinux-raspi6.7.0-1001.1UBUNTU-CVE-2023-52526
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-52526
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-52526

Affected products (as reported)

VendorProductVersions
Linux Linux 5c2a64252c5dc4cfe78e5b2a531c118894e3d155 – before 6a5a8f0a9740f865693d5aa97a42cc4504538e185c2a64252c5dc4cfe78e5b2a531c118894e3d155 – before c955751cbf864cf2055117dd3fe7f780d2a57b565c2a64252c5dc4cfe78e5b2a531c118894e3d155 – before 75a5221630fe5aa3fedba7a06be618db0f79ba1e
Linux Linux 6.1

References