kernel: cifs: Fix a kernel BUG with remote OS/2 server
Published Sep 7, 2010
7.8
HIGHCVSS 2.0
EPSS 4.03%
Description
fs/cifs/cifssmb.c in the CIFS implementation in the Linux kernel before 2.6.34-rc4 allows remote attackers to cause a denial of service (panic) via an SMB response packet with an invalid CountHigh value, as demonstrated by a response from an OS/2 server, related to the CIFSSMBWrite and CIFSSMBWrite2 functions.
Affected products
No data.
- ≤ 2.6.34
- 2.6.0
- 2.6.1
- 2.6.2
- 2.6.3
- 2.6.4
- 2.6.5
- 2.6.6
- 2.6.7
- 2.6.8
- 2.6.8.1
- 2.6.9
- 2.6.10
- 2.6.11
- 2.6.11.1
- 2.6.11.2
- 2.6.11.3
- 2.6.11.4
- 2.6.11.5
- 2.6.11.6
- 2.6.11.7
- 2.6.11.8
- 2.6.11.9
- 2.6.11.10
- 2.6.11.11
- 2.6.11.12
- 2.6.12
- 2.6.12.1
- 2.6.12.2
- 2.6.12.3
- 2.6.12.4
- 2.6.12.5
- 2.6.12.6
- 2.6.13
- 2.6.13.1
- 2.6.13.2
- 2.6.13.3
- 2.6.13.4
- 2.6.13.5
- 2.6.14
- 2.6.14.1
- 2.6.14.3
- 2.6.14.4
- 2.6.14.5
- 2.6.14.6
- 2.6.14.7
- 2.6.15
- 2.6.15.1
- 2.6.15.2
- 2.6.15.3
- 2.6.15.4
- 2.6.15.5
- 2.6.15.6
- 2.6.15.7
- 2.6.16
- 2.6.16.1
- 2.6.16.2
- 2.6.16.3
- 2.6.16.4
- 2.6.16.5
- 2.6.16.6
- 2.6.16.7
- 2.6.16.8
- 2.6.16.9
- 2.6.16.10
- 2.6.16.11
- 2.6.16.12
- 2.6.16.13
- 2.6.16.14
- 2.6.16.15
- 2.6.16.16
- 2.6.16.17
- 2.6.16.18
- 2.6.16.19
- 2.6.16.20
- 2.6.16.21
- 2.6.16.22
- 2.6.16.23
- 2.6.16.24
- 2.6.16.25
- 2.6.16.26
- 2.6.16.27
- 2.6.16.28
- 2.6.16.29
- 2.6.16.30
- 2.6.16.31
- 2.6.17
- 2.6.17.1
- 2.6.17.2
- 2.6.17.3
- 2.6.17.4
- 2.6.17.5
- 2.6.17.6
- 2.6.17.7
- 2.6.17.8
- 2.6.17.9
- 2.6.17.10
- 2.6.17.11
- 2.6.17.12
- 2.6.17.13
- 2.6.17.14
- 2.6.18.1
- 2.6.18.2
- 2.6.18.3
- 2.6.18.4
- 2.6.18.5
- 2.6.18.6
- 2.6.18.7
- 2.6.18.8
- 2.6.22
- 2.6.22.2
- 2.6.22.3
- 2.6.22.4
- 2.6.22.5
- 2.6.22.6
- 2.6.22.7
- 2.6.23
- 2.6.23
- 2.6.23
- 2.6.23.1
- 2.6.23.2
- 2.6.23.3
- 2.6.23.4
- 2.6.23.5
- 2.6.23.6
- 2.6.23.7
- 2.6.24
- 2.6.24
- 2.6.24
- 2.6.24
- 2.6.24
- 2.6.32
- 2.6.32.1
- 2.6.32.2
- 2.6.32.3
- 2.6.32.4
- 2.6.33
- 2.6.33
- 2.6.33
- 2.6.33
- 2.6.33
- 2.6.33
- 2.6.33
- 2.6.33.1
- 2.6.33.2
- 2.6.34
- 2.6.34
No data.
MRG for RHEL-5
kernel-rt-0:2.6.24.7-161.el5rt
Fixed · RHSA-2010:0631
Red Hat Enterprise Linux 4
kernel-0:2.6.9-89.0.28.EL
Fixed · RHSA-2010:0606
Red Hat Enterprise Linux 5
kernel-0:2.6.18-194.11.1.el5
Fixed · RHSA-2010:0610
| Product | Package | State | Advisory |
|---|---|---|---|
| MRG for RHEL-5 | kernel-rt-0:2.6.24.7-161.el5rt | Fixed | RHSA-2010:0631 |
| Red Hat Enterprise Linux 4 | kernel-0:2.6.9-89.0.28.EL | Fixed | RHSA-2010:0606 |
| Red Hat Enterprise Linux 5 | kernel-0:2.6.18-194.11.1.el5 | Fixed | RHSA-2010:0610 |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the version of Linux kernel as shipped with Red Hat Enterprise Linux 3 as it did not have support for CIFS. Future updates in Red Hat Enterprise Linux 4, 5, and Red Hat Enterprise MRG may address this flaw.
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:N/AC:L/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 1, 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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.03% (0.04033) | 90.28th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.03% (0.04033) | 89.24th | v5 (v2026.06.15) |
| Mar 17, 2025 | 2.31% (0.02314) | 83.65th | v4 (v2025.03.14) |
| Dec 17, 2024 | 23.21% (0.23210) | 96.56th | v3 (v2023.03.01) |
| Sep 9, 2024 | 29.57% (0.29568) | 96.99th | v3 (v2023.03.01) |
| Mar 8, 2023 | 23.21% (0.23210) | 95.76th | v3 (v2023.03.01) |
| Mar 7, 2023 | 17.81% (0.17811) | 95.27th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.78% (0.03779) | 85.48th | v2 (v2022.01.01) |
| Feb 13, 2023 | 3.78% (0.03779) | 85.08th | v2 (v2022.01.01) |
| Feb 3, 2023 | 4.36% (0.04358) | 87.66th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.78% (0.03779) | 84.01th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.78% (0.03779) | 67.21th | v2 (v2022.01.01) |
References (20)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6513a81e9325d712f1bfb9a1d7b750134e49ff18 x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00004.html vendor-advisoryx_refsource_SUSE
- http://secunia.com/advisories/43315 third-party-advisoryx_refsource_SECUNIA
- http://securitytracker.com/id?1024285 vdb-entryx_refsource_SECTRACK
- http://www.debian.org/security/2010/dsa-2094 vendor-advisoryx_refsource_DEBIAN
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/v2.6.34/ChangeLog-2.6.34-rc4 x_refsource_CONFIRM
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:198 vendor-advisoryx_refsource_MANDRIVA
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:051 vendor-advisoryx_refsource_MANDRIVA
- http://www.openwall.com/lists/oss-security/2010/06/28/1 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2010/06/28/6 mailing-listx_refsource_MLIST
- http://www.redhat.com/support/errata/RHSA-2010-0610.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/archive/1/516397/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/42242 vdb-entryx_refsource_BIDPatch
- http://www.ubuntu.com/usn/USN-1000-1 vendor-advisoryx_refsource_UBUNTU
- http://www.vmware.com/security/advisories/VMSA-2011-0003.html x_refsource_CONFIRM
- https://access.redhat.com/security/cve/CVE-2010-2248 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=608583 x_refsource_CONFIRMIssue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2010-2248
- https://rhn.redhat.com/errata/RHSA-2010-0606.html vendor-advisoryx_refsource_REDHAT
- https://www.cve.org/CVERecord?id=CVE-2010-2248
Change history (0)
No recorded changes yet.