Published: 06/04/2021 Updated: 27/05/2022

CVSS v2 Base Score: 2.1 | Impact Score: 2.9 | Exploitability Score: 3.9

CVSS v3 Base Score: 6.5 | Impact Score: 4 | Exploitability Score: 2

VMScore: 187

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P

It exists that the aufs file system in the Linux kernel did not properly maintain POSIX ACL xattr data, when mounted with the non-default allow_userns option. A local attacker could possibly use this to gain elevated privileges. (CVE-2016-2854) ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well.

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linux linux kernel
debian debian linux 9.0

Several security issues were fixed in the Linux kernel ...

kernel: refcount leak in llcp_sock_bind() (CVE-2020-25670) kernel: refcount leak in llcp_sock_connect() (CVE-2020-25671) kernel: memory leak in llcp_sock_connect() (CVE-2020-25672) An issue was discovered in the Linux kernel related to mm/gupc and mm/huge_memoryc The get_user_pages (aka gup) implementation, when used for a copy-on-write page, do ...

An issue was discovered in the Linux kernel Fastrpc_internal_invoke in drivers/misc/fastrpcc does not prevent user applications from sending kernel RPC messages This is a related issue to CVE-2019-2308 (CVE-2021-28375) A flaw was found in the Linux kernel The rtw_wx_set_scan driver allows writing beyond the end of the ->ssid[] array The hi ...

A memory leak in the adis_update_scan_mode() function in drivers/iio/imu/adis_bufferc in the Linux kernel before 539 allows attackers to cause a denial of service (memory consumption), aka CID-ab612b1daf41 (CVE-2019-19060) A bypass was found for the Spectre v1 hardening in the eBPF engine of the Linux kernel The code in the kernel/bpf/verifier ...

A security issue was found in the Linux kernel before version 51111, as used by Xen A malicious or buggy frontend driver may be able to cause resource leaks from the corresponding backend driver This can result in a host-wide Denial of Sevice (DoS) ...

Two security issues have been identified in Citrix Hypervisor (formerly Citrix XenServer) that may allow privileged code in a guest VM to cause the host to crash or become unresponsive ...

CWE-665 https://xenbits.xenproject.org/xsa/advisory-371.txt https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html https://ubuntu.com/security/notices/USN-5343-1 https://nvd.nist.gov

CVE-2021-28688

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