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Vulnerability · Published May 21, 2024 · Assigned by Linux

CVE-2021-47330tty: serial: 8250: serial_cs: Fix a memory leak in error handling path

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 16% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 84.2% 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: tty: serial: 8250: serial_cs: Fix a memory leak in error handling path In the probe function, if the final 'serial_config()' fails, 'info' is leaking. Add a resource handling path to free this memory.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.14.6-1DEBIAN-CVE-2021-47330
Debian:13linux5.14.6-1DEBIAN-CVE-2021-47330
Debian:14linux5.14.6-1DEBIAN-CVE-2021-47330
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2021-47330
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2021-47330
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2021-47330
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2021-47330
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2021-47330
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2021-47330
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2021-47330
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2021-47330
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2021-47330
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2021-47330
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2021-47330
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2021-47330
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2021-47330
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2021-47330
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2021-47330
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2021-47330
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2021-47330
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2021-47330
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2021-47330
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2021-47330
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2021-47330
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2021-47330
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2021-47330
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2021-47330

Affected products (as reported)

VendorProductVersions
Linux Linux 15b99ac1729503db9e6dc642a50b9b6cb3bf51f9 – before b5a2799cd62ed30c81b22c23028d9ee374e2138c15b99ac1729503db9e6dc642a50b9b6cb3bf51f9 – before 331f5923fce4f45b8170ccf06c529e8eb28f37bc15b99ac1729503db9e6dc642a50b9b6cb3bf51f9 – before 34f4590f5ec9859ea9136249f528173d150bd58415b99ac1729503db9e6dc642a50b9b6cb3bf51f9 – before cddee5c287e26f6b2ba5c0ffdfc3a846f2f1046115b99ac1729503db9e6dc642a50b9b6cb3bf51f9 – before ee16bed959862a6de2913f71a04cb563d7237b6715b99ac1729503db9e6dc642a50b9b6cb3bf51f9 – before 7a80f71601af015856a0aeb1e3c294037ac3dd3215b99ac1729503db9e6dc642a50b9b6cb3bf51f9 – before c39cf4df19acf0133fa284a8cd83fad42cd13cc215b99ac1729503db9e6dc642a50b9b6cb3bf51f9 – before b2ef1f5de40342de44fc5355321595f91774dab5
Linux Linux 2.6.17

References