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Vulnerability · Published May 21, 2024 · Assigned by Linux

CVE-2021-47320nfs: fix acl memory leak of posix_acl_create()

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 0.3% (higher than 18% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.3%top 82.4% 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: nfs: fix acl memory leak of posix_acl_create() When looking into another nfs xfstests report, I found acl and default_acl in nfs3_proc_create() and nfs3_proc_mknod() error paths are possibly leaked. Fix them in advance.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.14.6-1DEBIAN-CVE-2021-47320
Debian:13linux5.14.6-1DEBIAN-CVE-2021-47320
Debian:14linux5.14.6-1DEBIAN-CVE-2021-47320
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2021-47320
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2021-47320
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2021-47320
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2021-47320
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2021-47320
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2021-47320
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2021-47320
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2021-47320
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2021-47320
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2021-47320
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2021-47320
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2021-47320
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2021-47320
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2021-47320
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2021-47320
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2021-47320
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2021-47320
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2021-47320
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2021-47320
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2021-47320
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2021-47320
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2021-47320
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2021-47320
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2021-47320

Affected products (as reported)

VendorProductVersions
Linux Linux 013cdf1088d7235da9477a2375654921d9b9ba9f – before 2e3960f276b4574a9bb0dfa31a7497302f6363b2013cdf1088d7235da9477a2375654921d9b9ba9f – before cef9d9acb7c80ed6bace894b6334557fd493863b013cdf1088d7235da9477a2375654921d9b9ba9f – before 8a2b308a54c5ec224fedc753617f99b29ffcd883013cdf1088d7235da9477a2375654921d9b9ba9f – before 0704f617040c397ae73c1f88f3956787ec5d6529013cdf1088d7235da9477a2375654921d9b9ba9f – before d0b32dc1409f7e65e4fcc34e236462268e69a357013cdf1088d7235da9477a2375654921d9b9ba9f – before 4b515308ab875c7e8ada8e606fe0c64762da5ed4013cdf1088d7235da9477a2375654921d9b9ba9f – before c8fc86e9df6a6a03f5a8e15a3b7a5c75fd05aa38013cdf1088d7235da9477a2375654921d9b9ba9f – before 687cf32865b2d6960214bce523f2afac58dd3cd2
Linux Linux 3.14

References