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Fencer Vulns
medium 5.3

CVE-2016-9802 json

In BlueZ 5.42, a buffer over-read was identified in "l2cap_packet" function in "monitor/packet.c" source file.

published 2016-12-03 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-10603

cvss
5.3
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.6%
EPSS 3.6% chance of exploitation in 30 days, percentile 89%
public exploits
0
none known

Summary

In BlueZ 5.42, a buffer over-read was identified in "l2cap_packet" function in "monitor/packet.c" source file. This issue can be triggered by processing a corrupted dump file and will result in btmon crash.

Patch / fix

  • bluez SLE Workstation Extension 15 SP1, SLE Workstation Extension 15, SLE Module for Desktop Applications 15 SP1 +3 more 5.48-5.16.1
  • bluez SLES for SAP 12 SP4, SLES for SAP 12 SP3, SLES 12 SP4 +7 more 5.13-5.12.1

suse advisories SUSE-SU-2019:1353-2SUSE-SU-2019:1353-1SUSE-SU-2019:1339-1

  • bluez openSUSE Leap 15.1, openSUSE Leap 15.0 5.48-lp151.8.3.1

opensuse advisories openSUSE-SU-2019:1476-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-9802 updated cvss 2.5

bluez: buffer over-read in l2cap_packet()

  • Red Hat Enterprise Linux 7 bluez, bluez-cups, bluez-libs, bluez-hid2hci
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 5 bluez-tools Red Hat Enterprise Linux 6 bluez, bluez-alsa, bluez-cups, bluez-libs, bluez-compat, bluez-gstreamer
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.62% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • spinics.net https://www.spinics.net/lists/linux-bluetooth/msg68898.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 5.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

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

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.