CVE-2021-23134

Linux kernel llcp_sock_bind/connect use-after-free

Published May 12, 2021 CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Description
Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.4 allows local attackers to elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local user with the CAP_NET_RAW capability.

Remediation

Vendor Solution

Apply the following patch: https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=c61760e6940d

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Debian DLA Debian DLA DLA-2689-1 linux security update
Debian DLA Debian DLA DLA-2690-1 linux-4.19 security update
EUVD EUVD EUVD-2021-10252 Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.4 allows local attackers to elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local user with the CAP_NET_RAW capability.
Ubuntu USN Ubuntu USN USN-4997-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-4997-2 Linux kernel (KVM) vulnerabilities
Ubuntu USN Ubuntu USN USN-5000-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5000-2 Linux kernel (KVM) vulnerabilities
Ubuntu USN Ubuntu USN USN-5001-1 Linux kernel (OEM) vulnerabilities
Ubuntu USN Ubuntu USN USN-5016-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5018-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5343-1 Linux kernel vulnerabilities
History

No history.