CVE-2021-22555

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Source
https://cve.org/CVERecord?id=CVE-2021-22555
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-22555.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-22555
Aliases
Downstream
CLSA (3)
DEBIAN (1)
OESA (1)
openSUSE (4)
RHSA (21)
RLSA (2)
SUSE (21)
UBUNTU (1)
Related
ALSA (1)
openSUSE (4)
SUSE (21)
Published
2021-07-07T12:15:08Z
Modified
2026-05-18T05:53:30Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c. This allows an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space

Database specific 
{
    "unresolved_ranges":  [
        {
            "cpe":  "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
            "extracted_events":  [
                {
                    "introduced":  "2.6.19"
                },
                {
                    "fixed":  "4.4.267"
                },
                {
                    "introduced":  "4.5"
                },
                {
                    "fixed":  "4.9.267"
                },
                {
                    "introduced":  "4.10"
                },
                {
                    "fixed":  "4.14.231"
                },
                {
                    "introduced":  "4.15"
                },
                {
                    "fixed":  "4.19.188"
                },
                {
                    "introduced":  "4.20"
                },
                {
                    "fixed":  "5.4.113"
                },
                {
                    "introduced":  "5.5"
                },
                {
                    "fixed":  "5.10.31"
                }
            ],
            "source":  "CPE_FIELD"
        }
    ]
}
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
f40ddce88593482919761f74910f42f4b84c004b
Fixed
9f4ad9e425a1d3b6a34617b8ea226d56a119a717
Database specific
Show details 
{
    "cpe":  "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
    "extracted_events":  [
        {
            "introduced":  "5.11"
        },
        {
            "fixed":  "5.12"
        }
    ],
    "source":  "CPE_FIELD"
}

Affected versions

v5.*
v5.11
v5.12-rc1
v5.12-rc1-dontuse
v5.12-rc2
v5.12-rc3
v5.12-rc4
v5.12-rc5
v5.12-rc6
v5.12-rc7
v5.12-rc8

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-22555.json"