CVE-2021-32399: debian debian_linux

Modified

AliasesRHSA-2021:3392UBUNTU-CVE-2021-32399DEBIAN-CVE-2021-32399

Published 10-05-2021Last modified 03-08-2024

Vulnerability summary

CVE-2021-32399 is a high (CVSS 7.0) vulnerability in debian debian_linux. EPSS estimates a 0.69% chance of exploitation in the next 30 days, higher than 52.8% of scored vulnerabilities. 1 public exploit is recorded.

Priority

Prioritisepublic exploit

Public exploit (reference, Date unknown)

Source freshness unavailable

How is this decided?

CVSS score

7.0/10

010

High · v3.1 (NVD)

EPSS score

0.69%

0%100%

Low · 0.00 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 59 · Related 35

DLA-2689-1 DLA-2690-1 MGASA-2021-0214 MGASA-2021-0215 OPENSUSE-SU-2021:0843-1 OPENSUSE-SU-2021:0947-1+53 more

Timeline

10-05-2021
PublishedVulnerability first disclosed.
03-08-2024
Last modifiedVulnerability information updated.

Description

net/bluetooth/hci_request.c in the Linux kernel through 5.12.2 has a race condition for removal of the HCI controller.

CVSS metrics

5 scores · 4 sources · 2 versions

v3.17.0v2.04.4

EPSS trend

Probability

0.69%

Chance of exploitation in the next 30 days

Percentile

53%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.69% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found

referenceUnverified
Exploit Reference (openwall.com)
Maturity: unknown

Weaknesses

CWE · root cause

CWE-362Concurrent Execution using Shared Resource with Improper SynchronizationThe product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu54 products

linuxAll versions (No fix recorded) | < 4.4.0-222.255 | < 4.15.0-151.157 | < 5.4.0-77.86
linux-aws< 4.4.0-1102.107 | < 4.4.0-1138.152 | < 4.15.0-1109.116 | < 5.4.0-1051.53
linux-aws-5.0All versions (No fix recorded)
linux-aws-5.3All versions (No fix recorded)
linux-aws-5.4< 5.4.0-1051.53~18.04.1

linux-aws-5.8< 5.8.0-1041.43~20.04.1
linux-aws-fips< 4.15.0-2051.53 | All versions (No fix recorded) | < 5.4.0-1069.73+fips2
linux-aws-hwe< 4.15.0-1109.116~16.04.1
linux-azure< 4.15.0-1121.134~14.04.1 | < 4.15.0-1121.134~16.04.1 | All versions (No fix recorded) | < 5.4.0-1051.53
linux-azure-4.15< 4.15.0-1121.134
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.4< 5.4.0-1051.53~18.04.1
linux-azure-5.8< 5.8.0-1039.42~20.04.1
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fde-5.15< 5.15.0-1114.123~20.04.1
linux-azure-fips< 4.15.0-2033.37 | All versions (No fix recorded) | < 5.4.0-1073.76+fips1
linux-bluefield< 5.4.0-1013.16
linux-dell300x< 4.15.0-1027.32
linux-fips< 4.4.0-1072.78 | All versions (No fix recorded) | < 4.15.0-1066.75 | < 5.4.0-1028.32
linux-gcp< 4.15.0-1106.120~16.04.1 | All versions (No fix recorded) | < 5.4.0-1046.49
linux-gcp-4.15< 4.15.0-1106.120
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.4< 5.4.0-1046.49~18.04.1
linux-gcp-5.8< 5.8.0-1038.40~20.04.1
linux-gcp-edgeAll versions (No fix recorded)
linux-gcp-fips< 4.15.0-2016.18 | All versions (No fix recorded) | < 5.4.0-1067.71~20.04.1
linux-gke< 5.4.0-1046.48
linux-gke-4.15All versions (No fix recorded)
linux-gke-5.4< 5.4.0-1046.48~18.04.1
linux-gkeop< 5.4.0-1018.19
linux-gkeop-5.4< 5.4.0-1018.19~18.04.1
linux-hwe< 4.15.0-151.157~16.04.1 | All versions (No fix recorded)
linux-hwe-5.4< 5.4.0-77.86~18.04.1
linux-hwe-5.8< 5.8.0-63.71~20.04.1
linux-hwe-edgeAll versions (No fix recorded)
linux-intel-iot-realtimeAll versions (No fix recorded)
linux-kvm< 4.4.0-1103.112 | < 4.15.0-1097.99 | < 5.4.0-1041.42
linux-lts-xenial< 4.4.0-222.255~14.04.1
linux-oemAll versions (No fix recorded)
linux-oem-5.10< 5.10.0-1032.33
linux-oem-5.6All versions (No fix recorded)
linux-oracle< 4.15.0-1078.86~16.04.1 | < 4.15.0-1078.86 | < 5.4.0-1048.52
linux-oracle-5.0All versions (No fix recorded)
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.4< 5.4.0-1048.52~18.04.1
linux-oracle-5.8< 5.8.0-1037.38~20.04.1
linux-raspi< 5.4.0-1038.41
linux-raspi-5.4< 5.4.0-1038.41~18.04.1
linux-raspi-realtimeAll versions (No fix recorded)
linux-raspi2< 4.15.0-1092.98 | All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded)
linux-riscvAll versions (No fix recorded)
linux-riscv-5.8All versions (No fix recorded)
linux-snapdragon< 4.15.0-1109.118

Show all 54

Redhat18 products

kpatch-patch-3_10_0-957_61_1< 0:1-5.el7
kpatch-patch-3_10_0-957_61_1-debuginfo< 0:1-5.el7
kpatch-patch-3_10_0-957_61_2< 0:1-5.el7
kpatch-patch-3_10_0-957_61_2-debuginfo< 0:1-5.el7
kpatch-patch-3_10_0-957_62_1< 0:1-5.el7

Show all 18

Netapp9 products

Show all 9

Debian2 products

linux< 5.10.38-1
debian_linuxEOL9.0

Linux1 product

linux_kernel≤ 5.12.2

5 vendors · 84 products

References

24 links

github.com/torvalds/linux/commit/e2cb6b891ad2b8caa9131e3be70f45243df82a80X Refsource MISCREPORTPatchThird Party Advisory
git.kernel.org/cgit/…X Refsource MISCREPORTMailing ListPatchVendor Advisory
www.openwall.com/lists/oss-security/2021/05/11/2Mailing ListX Refsource MLISTREPORTExploitPatchThird Party Advisory
security.netapp.com/advisory/ntap-20210622-0006/X Refsource CONFIRMThird Party Advisory
lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlMailing ListX Refsource MLISTThird Party Advisory
lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlMailing ListX Refsource MLISTThird Party Advisory
access.redhat.com/errata/RHSA-2021:3392Advisory
access.redhat.com/security/updates/classification/ARTICLE
bugzilla.redhat.com/show_bug.cgi?id=1970807REPORT
security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_3392.jsonAdvisory

Show all 24 references

access.redhat.com/security/cve/CVE-2021-32399REPORT
www.cve.org/CVERecord?id=CVE-2021-32399AdvisoryREPORT
nvd.nist.gov/vuln/detail/CVE-2021-32399AdvisoryOval
ubuntu.com/security/CVE-2021-32399REPORT
www.openwall.com/lists/oss-security/2021/05/11/2REPORT
ubuntu.com/security/notices/USN-4997-1Advisory
ubuntu.com/security/notices/USN-5000-1Advisory
ubuntu.com/security/notices/USN-5001-1Advisory
ubuntu.com/security/notices/USN-5018-1Advisory
ubuntu.com/security/notices/USN-5016-1Advisory
ubuntu.com/security/notices/USN-5000-2Advisory
ubuntu.com/security/notices/USN-4997-2Advisory
ubuntu.com/security/notices/USN-5343-1Advisory
security-tracker.debian.org/tracker/CVE-2021-32399Advisory