Skip to content
Noroxi
NVD / CVE Program· CNA redhat

CVE-2006-6106: Multiple buffer overflows in the cmtp_recv_interopmsg function in the Bluetooth driver (net/bluetooth/cmtp/capi.c) in the Linux kernel 2.4.2

Noroxi assessment

Priority: Monitor (action score 32/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 5.7% (FIRST EPSS); higher than 93.1% of all records.
  • No special conditions are required; it is repeatable.
  • Fixed version: hostap-modules-i386 (Debian:3.1) 1:0.3.7-1sarge3; i2c (Debian:3.1) 1:2.9.1-1sarge2; kernel-image-2.4.27-alpha (Debian:3.1) 2.4.27-10sarge6.

Low priority for now. Upgrade to hostap-modules-i386 (Debian:3.1) 1:0.3.7-1sarge3; i2c (Debian:3.1) 1:2.9.1-1sarge2; kernel-image-2.4.27-alpha (Debian:3.1) 2.4.27-10sarge6 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Multiple buffer overflows in the cmtp_recv_interopmsg function in the Bluetooth driver (net/bluetooth/cmtp/capi.c) in the Linux kernel 2.4.22 up to 2.4.33.4 and 2.6.2 before 2.6.18.6, and 2.6.19.x, allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via CAPI messages with a large value for the length of the (1) manu (manufacturer) or (2) serial (serial number) field.

HighCVSS 7.5 · v2.0—No exploit Fix available
Published
Dec 19, 2006
Updated
Jun 16, 2026
EPSS
5.7% · 93th percentile

Report tools

JSON

Action score

32

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
2 / 30 · 5.7%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2006-6106

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

Your free account also gets you

Running WordPress? Scan your site free with WP Lens

  • Stack alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for linux records

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

We use this product, ask for help

Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel2.4.22
  • linux linux kernel2.4.23
  • linux linux kernel2.4.24
  • linux linux kernel2.4.25
  • linux linux kernel2.4.26
  • linux linux kernel2.4.27
  • linux linux kernel2.4.28
  • linux linux kernel2.4.29
  • linux linux kernel2.4.30
  • linux linux kernel2.4.31
  • linux linux kernel2.4.32
  • linux linux kernel2.4.33
  • linux linux kernel2.4.33.1
  • linux linux kernel2.4.33.2
  • linux linux kernel2.4.33.3
  • linux linux kernel2.4.33.4
  • linux linux kernel2.6.10
  • linux linux kernel2.6.11
  • linux linux kernel2.6.11.1
  • linux linux kernel2.6.11.10

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:3.1hostap-modules-i386before 1:0.3.7-1sarge31:0.3.7-1sarge3
Debian:3.1i2cbefore 1:2.9.1-1sarge21:2.9.1-1sarge2
Debian:3.1kernel-image-2.4.27-alphabefore 2.4.27-10sarge62.4.27-10sarge6
Debian:3.1kernel-image-2.4.27-armbefore 2.4.27-2sarge62.4.27-2sarge6
Debian:3.1kernel-image-2.4.27-i386before 2.4.27-10sarge62.4.27-10sarge6
Debian:3.1kernel-image-2.4.27-ia64before 2.4.27-10sarge62.4.27-10sarge6
Debian:3.1kernel-image-2.4.27-m68kbefore 2.4.27-3sarge62.4.27-3sarge6
Debian:3.1kernel-image-2.4.27-s390before 2.4.27-2sarge62.4.27-2sarge6
Debian:3.1kernel-image-2.4.27-sparcbefore 2.4.27-9sarge62.4.27-9sarge6
Debian:3.1kernel-image-speakup-i386before 2.4.27-1.1sarge52.4.27-1.1sarge5
Debian:3.1kernel-latest-2.4-alphabefore 101sarge3101sarge3
Debian:3.1kernel-latest-2.4-i386before 101sarge2101sarge2
Debian:3.1kernel-latest-2.4-s390before 2.4.27-1sarge22.4.27-1sarge2
Debian:3.1kernel-latest-2.4-sparcbefore 42sarge342sarge3
Debian:3.1kernel-patch-2.4.27-mipsbefore 2.4.27-10.sarge4.040815-32.4.27-10.sarge4.040815-3
Debian:3.1kernel-patch-powerpc-2.4.27before 2.4.27-10sarge62.4.27-10sarge6
Debian:3.1kernel-source-2.4.27before 2.4.27-10sarge62.4.27-10sarge6
Debian:3.1kernel-source-2.4.27before 2.4.27-10sarge72.4.27-10sarge7
Debian:3.1kernel-source-2.6.8before 2.6.8-16sarge72.6.8-16sarge7
Debian:3.1mindi-kernelbefore 2.4.27-2sarge52.4.27-2sarge5
Debian:3.1pcmcia-modules-2.4.27-i386before 3.2.5+2sarge23.2.5+2sarge2
Debian:3.1systemimagerbefore 3.2.3-6sarge53.2.3-6sarge5
Red Hat:enterprise_linux:4::askernelbefore 0:2.6.9-42.0.8.EL0:2.6.9-42.0.8.EL
Red Hat:enterprise_linux:4::askernel-debuginfobefore 0:2.6.9-42.0.8.EL0:2.6.9-42.0.8.EL

+8

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2006-5871Dec 11, 2006 · smbfs in Linux kernel 2.6.8 and other versions, and 2.4.x before 2.4.34, when UNIX extensions are enabled, ignores certain mount options, wh
    16Monitor
  • ← EarlierCVE-2006-6304Dec 14, 2006 · The do_coredump function in fs/exec.c in the Linux kernel 2.6.19 sets the flag variable to O_EXCL but does not use it, which allows context-
    31Monitor
  • Later →CVE-2006-4814Dec 19, 2006 · The mincore function in the Linux kernel before 2.4.33.6 does not properly lock access to user space, which has unspecified impact and attac
    18Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:i2c1:2.9.1-1sarge2 · Debian:3.1Package registry (OSV)
debian:kernel-image-2.4.27-alpha2.4.27-10sarge6 · Debian:3.1Package registry (OSV)
debian:kernel-image-2.4.27-ia642.4.27-10sarge6 · Debian:3.1Package registry (OSV)
debian:kernel-image-2.4.27-m68k2.4.27-3sarge6 · Debian:3.1Package registry (OSV)
debian:kernel-latest-2.4-alpha101sarge3 · Debian:3.1Package registry (OSV)
debian:kernel-latest-2.4-i386101sarge2 · Debian:3.1Package registry (OSV)
debian:kernel-latest-2.4-sparc42sarge3 · Debian:3.1Package registry (OSV)
debian:kernel-patch-2.4.27-mips2.4.27-10.sarge4.040815-3 · Debian:3.1Package registry (OSV)
debian:kernel-patch-powerpc-2.4.272.4.27-10sarge6 · Debian:3.1Package registry (OSV)
debian:kernel-source-2.6.82.6.8-16sarge7 · Debian:3.1Package registry (OSV)
debian:pcmcia-modules-2.4.27-i3863.2.5+2sarge2 · Debian:3.1Package registry (OSV)
debian:systemimager3.2.3-6sarge5 · Debian:3.1Package registry (OSV)
red hat:kernel0:2.6.9-42.0.8.EL · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:kernel-debuginfo0:2.6.9-42.0.8.EL · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:kernel-devel0:2.6.9-42.0.8.EL · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:kernel-doc0:2.6.9-42.0.8.EL · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:kernel-hugemem0:2.6.9-42.0.8.EL · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:kernel-hugemem-devel0:2.6.9-42.0.8.EL · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:kernel-largesmp0:2.6.9-42.0.8.EL · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:kernel-largesmp-devel0:2.6.9-42.0.8.EL · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:kernel-smp0:2.6.9-42.0.8.EL · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:kernel-smp-devel0:2.6.9-42.0.8.EL · Red Hat:enterprise_linux:4::asPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • No special conditions are required; it is repeatable.

If successful

Confidentiality
P · data can be read
Integrity
P · data or configuration can be modified
Availability
P · the service can be disrupted
Attack complexity
Low
Confidentiality impact
P
Integrity impact
P
Availability impact
P

Weakness class (CWE)

CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer

CVSS vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (19 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records