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Vulnerability · Published May 21, 2024 · Assigned by Linux

CVE-2021-47347wl1251: Fix possible buffer overflow in wl1251_cmd_scan

High 7.8

In plain English

A high-severity buffer overflow 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 0.8% (higher than 57% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.8%top 42.9% 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: wl1251: Fix possible buffer overflow in wl1251_cmd_scan Function wl1251_cmd_scan calls memcpy without checking the length. Harden by checking the length is within the maximum allowed size.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.14.6-1DEBIAN-CVE-2021-47347
Debian:13linux5.14.6-1DEBIAN-CVE-2021-47347
Debian:14linux5.14.6-1DEBIAN-CVE-2021-47347
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2021-47347
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2021-47347
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2021-47347
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2021-47347
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2021-47347
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2021-47347
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2021-47347
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2021-47347
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2021-47347
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2021-47347
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2021-47347
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2021-47347
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2021-47347
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2021-47347
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2021-47347
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2021-47347
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2021-47347
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2021-47347
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2021-47347
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2021-47347
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2021-47347
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2021-47347
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2021-47347
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2021-47347

Affected products (as reported)

VendorProductVersions
Linux Linux 2f01a1f58889fbfeb68b1bc1b52e4197f3333490 – before 57ad99ae3c6738ba87bad259bb57c641ca68ebf62f01a1f58889fbfeb68b1bc1b52e4197f3333490 – before d3d8b9c9c7843dce31e284927d4c9904fd5a510a2f01a1f58889fbfeb68b1bc1b52e4197f3333490 – before 0f6c0488368c9ac1aa685821916fadba32f5d1ef2f01a1f58889fbfeb68b1bc1b52e4197f3333490 – before 115103f6e3f1c26c473766c16439c7c8b235529a2f01a1f58889fbfeb68b1bc1b52e4197f3333490 – before d71dddeb5380613f9ef199f3e7368fd78fb1a46e2f01a1f58889fbfeb68b1bc1b52e4197f3333490 – before c5e4a10d7bd5d4f419d8b9705dff60cf69b302a12f01a1f58889fbfeb68b1bc1b52e4197f3333490 – before 302e2ee34c5f7c5d805b7f835d9a6f2b43474e2a2f01a1f58889fbfeb68b1bc1b52e4197f3333490 – before 40af3960a15339e8bbd3be50c3bc7b35e1a0b6ea
Linux Linux 2.6.31

Weakness: CWE-120 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References