CVE-2022-3637 | Linux Kernel BlueZ jlink.c jlink_init denial of service

A vulnerability has been found in Linux Kernel and classified as problematic. This vulnerability affects the function jlink_init of the file monitor/jlink.c of the component BlueZ. The manipulation leads to denial of service. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211936.

Published: 2022-10-21 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-3637 is rated Low Risk (11.9/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.02%). Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2022-3637

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-11-21 0.07% 0.02% -0.05%
2 2025-11-18 0.04% 0.07% +0.03%
3 2023-03-07 — 0.04% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-3637

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
2.6 3.1 LOW
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 1.2 1.4 [email protected]
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 3.6 [email protected]

Weakness enumeration for CVE-2022-3637

OS Trackers for CVE-2022-3637

vendor priority summary link
alpine medium CVE-2022-3637: 1 source package rows (bluez); 5 state rows across 5 repos (3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 0, open 5. https://security.alpinelinux.org/vuln/CVE-2022-3637
debian unimportant CVE-2022-3637 unimportant priority: Debian including 1 source packages (bluez), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2022-3637
redhat low — https://access.redhat.com/security/cve/CVE-2022-3637
suse medium CVE-2022-3637 severity moderate: SUSE including 5 source package names (bluez, bluez-cups, bluez-deprecated, bluez-devel, libbluetooth3), 81 product×package rows across 40 product lines (SUSE CaaS Platform 4.0, SUSE Enterprise Storage 6, … (40 product lines)): Known Not Affected 81. https://www.suse.com/security/cve/CVE-2022-3637/
ubuntu medium CVE-2022-3637 medium priority: Ubuntu including 1 source packages (bluez), 13 status rows across 13 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 10, ignored 1, needed 1, released 1. https://ubuntu.com/security/CVE-2022-3637

Affected software / configurations for CVE-2022-3637

Vendor Product Version Raw CPE
bluez bluez < 5.65 cpe:2.3:a:bluez:bluez:*:*:*:*:*:*:*:*

References for CVE-2022-3637

cvelogic Threat Intelligence