An issue was discovered in the Linux kernel through 5.11.11. synic_get in arch/x86/kvm/hyperv.c has a NULL pointer dereference for certain accesses to the SynIC Hyper-V context, aka CID-919f4ebc5987.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - An issue was discovered in the Linux kernel through 5.11.11. synic_get in arch/x86/kvm/hyperv.c has a NULL     pointer dereference for certain accesses to the SynIC Hyper-V context, aka CID-919f4ebc5987.
    (CVE-2021-30178)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Fedora 32 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2021-57a7ba61f8 advisory.

  - An issue was discovered in the Linux kernel through 5.11.11. synic_get in arch/x86/kvm/hyperv.c has a NULL     pointer dereference for certain accesses to the SynIC Hyper-V context, aka CID-919f4ebc5987.
    (CVE-2021-30178)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 33 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2021-e71c033f88 advisory.

  - BPF JIT compilers in the Linux kernel through 5.11.12 have incorrect computation of branch displacements,     allowing them to execute arbitrary code within the kernel context. This affects     arch/x86/net/bpf_jit_comp.c and arch/x86/net/bpf_jit_comp32.c. (CVE-2021-29154)

  - An issue was discovered in the Linux kernel through 5.11.11. synic_get in arch/x86/kvm/hyperv.c has a NULL     pointer dereference for certain accesses to the SynIC Hyper-V context, aka CID-919f4ebc5987.
    (CVE-2021-30178)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
247005	Linux Distros Unpatched Vulnerability : CVE-2021-30178	Nessus	Misc.	medium
148741	Fedora 32 : kernel (2021-57a7ba61f8)	Nessus	Fedora Local Security Checks	medium
148723	Fedora 33 : kernel (2021-e71c033f88)	Nessus	Fedora Local Security Checks	high

Detections

Analytics

CVE-2021-30178

medium

Tenable Plugins

medium

medium

high