MEDIUM
oops in compat_sys_mount() when data pointer is NULL
Published May 14, 2007
4.0
MEDIUMCVSS 2.0
EPSS 0.48%
Description
The compat_sys_mount function in fs/compat.c in Linux kernel 2.6.20 and earlier allows local users to cause a denial of service (NULL pointer dereference and oops) by mounting a smbfs file system in compatibility mode ("mount -t smbfs").
Affected products
No data.
- ≤ 2.6.20
No data.
Red Hat Enterprise Linux 4
kernel-0:2.6.9-55.0.2.EL
Fixed · RHSA-2007:0488
Red Hat Enterprise Linux 5
kernel-0:2.6.18-8.1.6.el5
Fixed · RHSA-2007:0376
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 4 | kernel-0:2.6.9-55.0.2.EL | Fixed | RHSA-2007:0488 |
| Red Hat Enterprise Linux 5 | kernel-0:2.6.18-8.1.6.el5 | Fixed | RHSA-2007:0376 |
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.
4.0 MEDIUM NVD
AV:L/AC:H/Au:N/C:N/I:N/A:C
Access Vector Local
Access Complexity High
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
0.48% 0.00479
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.00479
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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.48% (0.00479) | 39.12th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.48% (0.00479) | 37.39th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.06% (0.00061) | 16.30th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.13% (0.00127) | 49.01th | v3 (v2023.03.01) |
| Jul 9, 2024 | 0.09% (0.00091) | 39.30th | 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) |
Weaknesses (0)
No CWE recorded.
References (27)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff_plain%3Bh=822191a2fa1584a29c3224ab328507adcaeac1ab x_refsource_CONFIRM
- http://rhn.redhat.com/errata/RHSA-2007-0488.html vendor-advisoryx_refsource_REDHAT
- http://secunia.com/advisories/25682 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/25683 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/25700 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/25838 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/25961 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/26133 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/26139 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/26289 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/26620 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/29058 third-party-advisoryx_refsource_SECUNIA
- http://support.avaya.com/elmodocs2/security/ASA-2007-287.htm x_refsource_CONFIRM
- http://www.debian.org/security/2008/dsa-1504 vendor-advisoryx_refsource_DEBIAN
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:171 vendor-advisoryx_refsource_MANDRIVA
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:196 vendor-advisoryx_refsource_MANDRIVA
- http://www.novell.com/linux/security/advisories/2007_35_kernel.html vendor-advisoryx_refsource_SUSE
- http://www.novell.com/linux/security/advisories/2007_43_kernel.html vendor-advisoryx_refsource_SUSE
- http://www.ubuntu.com/usn/usn-486-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/usn-489-1 vendor-advisoryx_refsource_UBUNTU
- http://www.vupen.com/english/advisories/2007/2209 vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2006-7203 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=239767 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2006-7203
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10941 vdb-entrysignaturex_refsource_OVAL
- https://rhn.redhat.com/errata/RHSA-2007-0376.html vendor-advisoryx_refsource_REDHAT
- https://www.cve.org/CVERecord?id=CVE-2006-7203
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published May 14, 2007
Updated Aug 7, 2024
Reserved May 14, 2007
Link CVE-2006-7203
CISA Vulnrichment
Updated n/a