CVE-2019-19922

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Source
https://cve.org/CVERecord?id=CVE-2019-19922
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-19922.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2019-19922
Downstream
Published
2019-12-22T20:15:10.823Z
Modified
2026-03-15T22:31:14.698096Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

kernel/sched/fair.c in the Linux kernel before 5.3.9, when cpu.cfsquotaus is used (e.g., with Kubernetes), allows attackers to cause a denial of service against non-cpu-bound applications by generating a workload that triggers unwanted slice expiration, aka CID-de53fd7aedb1. (In other words, although this slice expiration would typically be seen with benign workloads, it is possible that an attacker could calculate how many stray requests are required to force an entire Kubernetes cluster into a low-performance state caused by slice expiration, and ensure that a DDoS attack sent that number of stray requests. An attack does not affect the stability of the kernel; it only causes mismanagement of application execution.)

References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
de53fd7aedb100f03e5d2231cfce0e4993282425
Type
GIT
Repo
https://github.com/torvalds/linux
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
de53fd7aedb100f03e5d2231cfce0e4993282425
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
de53fd7aedb100f03e5d2231cfce0e4993282425
Type
GIT
Repo
https://github.com/torvalds/linux
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
de53fd7aedb100f03e5d2231cfce0e4993282425

Database specific

unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "5.3.9"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.2"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "18.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "19.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "11.0"
            },
            {
                "last_affected": "11.70.2"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "h610s"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "5.3.9"
            }
        ]
    }
]
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-19922.json"