OESA-2021-1324

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Source
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1324
Import Source
https://repo.openeuler.org/security/data/osv/OESA-2021-1324.json
JSON Data
https://api.test.osv.dev/v1/vulns/OESA-2021-1324
Upstream
Published
2021-08-28T11:03:09Z
Modified
2025-08-12T05:07:17.281153Z
Summary
kernel security update
Details

The Linux Kernel, the operating system core itself.

Security Fix(es):

In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because the protection mechanism neglects the possibility of uninitialized memory locations on the BPF stack.(CVE-2021-34556)

In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because a certain preempting store operation does not necessarily occur before a store operation that has an attacker-controlled value.(CVE-2021-35477)

An information disclosure vulnerability exists in the ARM SIGPAGE functionality of Linux Kernel v5.4.66 and v5.4.54. The latest version (5.11-rc4) seems to still be vulnerable. A userland application can read the contents of the sigpage, which can leak kernel memory contents. An attacker can read a process’s memory at a specific offset to trigger this vulnerability. This was fixed in kernel releases: 4.14.222 4.19.177 5.4.99 5.10.17 5.11(CVE-2021-21781)

In drivers/char/virtio_console.c in the Linux kernel before 5.13.4, data corruption or loss can be triggered by an untrusted device that supplies a buf->len value exceeding the buffer size.(CVE-2021-38160)

Database specific 
{
    "severity": "High"
}
References

Affected packages

openEuler:20.03-LTS-SP1 / kernel

Package

Name
kernel
Purl
pkg:rpm/openEuler/kernel&distro=openEuler-20.03-LTS-SP1

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.19.90-2108.8.0.0106.oe1

Ecosystem specific 

{
    "aarch64": [
        "kernel-debugsource-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "kernel-debuginfo-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "perf-debuginfo-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "python3-perf-debuginfo-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "python2-perf-debuginfo-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "kernel-tools-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "python2-perf-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "bpftool-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "kernel-devel-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "kernel-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "kernel-tools-devel-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "kernel-tools-debuginfo-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "bpftool-debuginfo-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "perf-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "kernel-source-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "python3-perf-4.19.90-2108.8.0.0106.oe1.aarch64.rpm"
    ],
    "src": [
        "kernel-4.19.90-2108.8.0.0106.oe1.src.rpm"
    ],
    "x86_64": [
        "python2-perf-debuginfo-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "kernel-tools-devel-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "bpftool-debuginfo-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "kernel-debuginfo-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "kernel-tools-debuginfo-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "perf-debuginfo-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "python3-perf-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "kernel-source-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "kernel-debugsource-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "python2-perf-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "perf-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "python3-perf-debuginfo-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "kernel-devel-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "bpftool-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "kernel-tools-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "kernel-4.19.90-2108.8.0.0106.oe1.x86_64.rpm"
    ]
}

openEuler:20.03-LTS-SP2 / kernel

Package

Name
kernel
Purl
pkg:rpm/openEuler/kernel&distro=openEuler-20.03-LTS-SP2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.19.90-2108.8.0.0106.oe1

Ecosystem specific 

{
    "aarch64": [
        "kernel-debugsource-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "bpftool-debuginfo-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "kernel-devel-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "kernel-tools-devel-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "perf-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "kernel-tools-debuginfo-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "kernel-tools-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "bpftool-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "perf-debuginfo-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "kernel-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "python2-perf-debuginfo-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "kernel-source-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "python3-perf-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "python3-perf-debuginfo-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "python2-perf-4.19.90-2108.8.0.0106.oe1.aarch64.rpm",
        "kernel-debuginfo-4.19.90-2108.8.0.0106.oe1.aarch64.rpm"
    ],
    "src": [
        "kernel-4.19.90-2108.8.0.0106.oe1.src.rpm"
    ],
    "x86_64": [
        "kernel-devel-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "kernel-source-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "python2-perf-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "kernel-tools-debuginfo-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "kernel-tools-devel-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "kernel-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "python3-perf-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "kernel-debugsource-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "kernel-debuginfo-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "bpftool-debuginfo-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "kernel-tools-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "perf-debuginfo-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "python2-perf-debuginfo-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "python3-perf-debuginfo-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "perf-4.19.90-2108.8.0.0106.oe1.x86_64.rpm",
        "bpftool-4.19.90-2108.8.0.0106.oe1.x86_64.rpm"
    ]
}