kernel: fuse: verify ioctl retries
Published Jun 21, 2012
4.6
MEDIUMCVSS 2.0
EPSS 0.39%
Description
Buffer overflow in the fuse_do_ioctl function in fs/fuse/file.c in the Linux kernel before 2.6.37 allows local users to cause a denial of service or possibly have unspecified other impact by leveraging the ability to operate a CUSE server.
Affected products
No data.
- ≤ 2.6.36.4
- 2.6.36.1
- 2.6.36.2
- 2.6.36.3
No data.
Red Hat Enterprise Linux 4
kernel
Not affected
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise MRG 2
realtime-kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 4 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise MRG 2 | realtime-kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 4 and 5 as they did not backport the upstream commit 59efec7b that introduced this issue. It did not affect the version of Linux kernel as shipped with Red hat Enterprise MRG as it did not provide support for Character device in Userspace (CUSE). A future kernel update in Red Hat Enterprise Linux 6 may address this flaw. Note that, by default, the "/dev/cuse" file in Red Hat Enterprise Linux 6 is only accessible by the root user.
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:L/Au:N/C:P/I:P/A:P
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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.39% (0.00386) | 30.20th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.39% (0.00386) | 30.14th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.06% (0.00061) | 16.36th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.95% (0.00950) | 30.63th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00950) | 28.61th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00950) | 13.46th | v2 (v2022.01.01) |
References (8)
- http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.37 x_refsource_CONFIRM
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7572777eef78ebdee1ecb7c258c0ef94d35bad16 x_refsource_CONFIRM
- http://www.openwall.com/lists/oss-security/2011/01/06/18 mailing-listx_refsource_MLIST
- https://access.redhat.com/security/cve/CVE-2010-4650 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=667892 x_refsource_CONFIRMIssue Tracking
- https://github.com/torvalds/linux/commit/7572777eef78ebdee1ecb7c258c0ef94d35bad16 x_refsource_CONFIRMPatch
- https://nvd.nist.gov/vuln/detail/CVE-2010-4650
- https://www.cve.org/CVERecord?id=CVE-2010-4650
| Link | Providers | Tags |
|---|---|---|
| http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.37 | x_refsource_CONFIRM | |
| http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7572777eef78ebdee1ecb7c258c0ef94d35bad16 | x_refsource_CONFIRM | |
| http://www.openwall.com/lists/oss-security/2011/01/06/18 | mailing-listx_refsource_MLIST | |
| https://access.redhat.com/security/cve/CVE-2010-4650 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=667892 | x_refsource_CONFIRMIssue Tracking | |
| https://github.com/torvalds/linux/commit/7572777eef78ebdee1ecb7c258c0ef94d35bad16 | x_refsource_CONFIRMPatch | |
| https://nvd.nist.gov/vuln/detail/CVE-2010-4650 | ||
| https://www.cve.org/CVERecord?id=CVE-2010-4650 |
Change history (0)
No recorded changes yet.