CentOS: Security Advisory for bpftool (CESA-2021:3801)

Published: 2021-11-18 02:01:43
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:L/AC:L/Au:N/C:C/I:C/A:C

Summary:
The remote host is missing an update for the 'bpftool' Linux Distribution Package(s) announced via the CESA-2021:3801 advisory.

Detection Method:
Checks if a vulnerable Linux Distribution Package version is present on the target host.

Technical Details:
The kernel Linux Distribution Packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: Improper handling of VM_IOVM_PFNMAP vmas in KVM can bypass RO checks (CVE-2021-22543) * kernel: powerpc: KVM guest OS users can cause host OS memory corruption (CVE-2021-37576) * kernel: SVM nested virtualization issue in KVM (AVIC support) (CVE-2021-3653) * kernel: SVM nested virtualization issue in KVM (VMLOAD/VMSAVE) (CVE-2021-3656) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Bug Fix(es): * Kernel panic due to double fault with DLM reporting for socket error 'sk_err=32/0' (BZ#1834878) * 'MFW indication via attention' message getting logged frequently after every 5 minutes (BZ#1854544) * lpfc fails to discovery in pt2pt with '2754 PRLI failure DID:0000EF Status:x9/x91e00, data: x0' (BZ#1922479) * pcpu_get_vm_areas using most memory from VmallocUsed (BZ#1970618) * RHEL 7.9.z [qedf driver] Racing condition between qedf_cleanup_fcport and releasing command after timeout (BZ#1982702) * [Azure] RHEL 7.9 reports GPU/IB topology incorrectly on some Azure SKUs (BZ#1984128) * [stable guest ABI]Hot add CPU after migration cause guest hang (BZ#1991856) * i40e driver crash at RIP: i40e_config_vf_promiscuous_mode+0x165 (BZ#1993850) * [nfs] Performance issue since commit 5a4f6f11951e (BZ#1995649) * [kernel] Indefinite waiting for RCU callback while removing cgroup (BZ#2000973)

Affected Versions:
'bpftool' Linux Distribution Package(s) on CentOS 7.

Recommendations:
Please install the updated Linux Distribution Package(s).

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2021-3653
https://nvd.nist.gov/vuln/detail/CVE-2021-3656
https://nvd.nist.gov/vuln/detail/CVE-2021-22543
https://nvd.nist.gov/vuln/detail/CVE-2021-37576

References:


https://lists.centos.org/pipermail/centos-announce/2021-November/048398.html

Severity
High
CVSS Score
7.2
Published
2021-11-18
Modified
2021-11-29
Category
CentOS Local Security Checks

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