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CVE-2021-46912

🗓️ 27 Feb 2024 06:53:52Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 671 Views

In Linux kernel, a resolved vulnerability has been found in net: Make tcp_allowed_congestion_control readonly in non-init netns. tcp_allowed_congestion_control is global and writable; writing to it in any net namespace will leak into all other net namespaces

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2021-46912
27 Feb 202407:15
–attackerkb
nessus
Tenable Nessus
Amazon Linux 2 : kernel (ALASKERNEL-5.10-2022-001)
2 May 202200:00
–nessus
nessus
Tenable Nessus
Linux Distros Unpatched Vulnerability : CVE-2021-46912
8 Aug 202500:00
–nessus
amazon
Amazon
Important: kernel
28 Jan 202200:00
–amazon
bdu_fstec
BDU FSTEC
Linux kernel DoS
22 Apr 202400:00
–bdu_fstec
circl
Circl
CVE-2021-46912
27 Feb 202408:21
–circl
cnnvd
CNNVD
Linux kernel security vulnerabilities
27 Feb 202400:00
–cnnvd
cvelist
Cvelist
CVE-2021-46912 net: Make tcp_allowed_congestion_control readonly in non-init netns
27 Feb 202406:53
–cvelist
debiancve
Debian CVE
CVE-2021-46912
27 Feb 202406:53
–debiancve
nvd
NVD
CVE-2021-46912
27 Feb 202407:15
–nvd
Rows per page
NVD
Vulners
CNA
Node
OR
linuxlinux_kernelRange5.7.0–5.10.32
linuxlinux_kernelRange5.11.0–5.11.16
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv4/sysctl_net_ipv4.c"
    ],
    "versions": [
      {
        "version": "9cb8e048e5d93825ec5e8dfb5b8df4987ea25745",
        "lessThan": "35d7491e2f77ce480097cabcaf93ed409e916e12",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9cb8e048e5d93825ec5e8dfb5b8df4987ea25745",
        "lessThan": "1ccdf1bed140820240e383ba0accc474ffc7f006",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9cb8e048e5d93825ec5e8dfb5b8df4987ea25745",
        "lessThan": "97684f0970f6e112926de631fdd98d9693c7e5c1",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv4/sysctl_net_ipv4.c"
    ],
    "versions": [
      {
        "version": "5.7",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.7",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.32",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.11.16",
        "lessThanOrEqual": "5.11.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.12",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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05 Aug 2026 08:45Current
5.5Medium risk
Vulners AI Score5.5
CVSS 3.15.5 - 7.3
EPSS0.00235
SSVC
671