CVE-2021-3640

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Source
https://cve.org/CVERecord?id=CVE-2021-3640
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3640.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-3640
Downstream
BELL (1)
CLSA (3)
DEBIAN (1)
MGASA (1)
OESA (1)
openSUSE (6)
RHSA (5)
RLSA (2)
SUSE (23)
UBUNTU (1)
Related
ALSA (4)
openSUSE (6)
SUSE (23)
Published
2022-03-03T23:15:08Z
Modified
2026-04-16T04:32:17Z
Severity
  • 7.0 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del() together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A privileged local user could use this flaw to crash the system or escalate their privileges on the system.

References

Affected packages

Git /

Affected ranges

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3640.json"
unresolved_ranges 
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    {
        "events":  [
            {
                "introduced":  "0"
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            {
                "fixed":  "4.4.293"
            }
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        "events":  [
            {
                "introduced":  "4.5"
            },
            {
                "fixed":  "4.9.291"
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    {
        "events":  [
            {
                "introduced":  "4.10"
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                "fixed":  "4.14.256"
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    {
        "events":  [
            {
                "introduced":  "4.15"
            },
            {
                "fixed":  "4.19.218"
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    },
    {
        "events":  [
            {
                "introduced":  "4.20"
            },
            {
                "fixed":  "5.4.160"
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    {
        "events":  [
            {
                "introduced":  "5.5.0"
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                "fixed":  "5.10.80"
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                "introduced":  "5.11"
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                "introduced":  "5.15"
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                "fixed":  "5.15.3"
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        "events":  [
            {
                "introduced":  "0"
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            {
                "last_affected":  "9.0"
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                "last_affected":  "34"
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        "events":  [
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                "introduced":  "0"
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                "last_affected":  "21.10"
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]