kernel: missing tty ops write function presence check in hci_uart_tty_open()
Published Jan 11, 2011
4.0
MEDIUMCVSS 2.0
EPSS 0.46%
Description
The hci_uart_tty_open function in the HCI UART driver (drivers/bluetooth/hci_ldisc.c) in the Linux kernel 2.6.36, and possibly other versions, does not verify whether the tty has a write operation, which allows local users to cause a denial of service (NULL pointer dereference) via vectors related to the Bluetooth driver.
Affected products
No data.
- 2.6.36
No data.
MRG for RHEL-5
kernel-rt-0:2.6.33.7-rt29.55.el5rt
Fixed · RHSA-2011:0330
Red Hat Enterprise Linux 4
kernel-0:2.6.9-89.35.1.EL
Fixed · RHSA-2011:0162
Red Hat Enterprise Linux 5
kernel-0:2.6.18-194.32.1.el5
Fixed · RHSA-2011:0004
Red Hat Enterprise Linux 6
kernel-0:2.6.32-71.14.1.el6
Fixed · RHSA-2011:0007
| Product | Package | State | Advisory |
|---|---|---|---|
| MRG for RHEL-5 | kernel-rt-0:2.6.33.7-rt29.55.el5rt | Fixed | RHSA-2011:0330 |
| Red Hat Enterprise Linux 4 | kernel-0:2.6.9-89.35.1.EL | Fixed | RHSA-2011:0162 |
| Red Hat Enterprise Linux 5 | kernel-0:2.6.18-194.32.1.el5 | Fixed | RHSA-2011:0004 |
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-71.14.1.el6 | Fixed | RHSA-2011:0007 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:H/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.46% (0.00459) | 37.53th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.46% (0.00459) | 36.14th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.08% (0.00081) | 21.32th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00044) | 11.89th | v3 (v2023.03.01) |
| Jul 2, 2024 | 0.04% (0.00044) | 10.25th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 8.24th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
No CWE recorded.
References (23)
- http://git.kernel.org/linus/c19483cc5e56ac5e22dd19cf25ba210ab1537773 x_refsource_CONFIRMPatch
- http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00002.html vendor-advisoryx_refsource_SUSE
- http://secunia.com/advisories/42789 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/42890 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/42963 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/43291 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/46397 third-party-advisoryx_refsource_SECUNIA
- http://www.redhat.com/support/errata/RHSA-2011-0004.html vendor-advisoryx_refsource_REDHAT
- http://www.redhat.com/support/errata/RHSA-2011-0007.html vendor-advisoryx_refsource_REDHAT
- http://www.redhat.com/support/errata/RHSA-2011-0162.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/archive/1/520102/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/45014 vdb-entryx_refsource_BID
- http://www.vmware.com/security/advisories/VMSA-2011-0012.html x_refsource_CONFIRM
- http://www.vupen.com/english/advisories/2011/0024 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2011/0168 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2011/0375 vdb-entryx_refsource_VUPEN
- http://xorl.wordpress.com/2010/12/01/cve-2010-4242-linux-kernel-bluetooth-hci-uart-invalid-pointer-access/ x_refsource_MISCExploitPatch
- https://access.redhat.com/security/cve/CVE-2010-4242 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=641410 x_refsource_CONFIRMPatchIssue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/64617 vdb-entryx_refsource_XF
- https://lkml.org/lkml/2010/10/7/255 mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2010-4242
- https://www.cve.org/CVERecord?id=CVE-2010-4242
Change history (0)
No recorded changes yet.