kernel: nfs: missing check for buffer length in __nfs4_get_acl_uncached
Published Nov 19, 2013
6.2
MEDIUMCVSS 2.0
EPSS 0.57%
Description
Buffer overflow in the __nfs4_get_acl_uncached function in fs/nfs/nfs4proc.c in the Linux kernel before 3.7.2 allows local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact via a getxattr system call for the system.nfs4_acl extended attribute of a pathname on an NFSv4 filesystem.
Affected products
No data.
- ≤ 3.7.1
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0.1
- 3.0.2
- 3.0.3
- 3.0.4
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- 3.1
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- 3.1
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- 3.5.1
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No data.
Red Hat Enterprise Linux 6
kernel-0:2.6.32-431.el6
Fixed · RHSA-2013:1645
Red Hat Enterprise Linux 6.4 Extended Update Support
kernel-0:2.6.32-358.37.1.el6
Fixed · RHSA-2014:0284
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise MRG 2
realtime-kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-431.el6 | Fixed | RHSA-2013:1645 |
| Red Hat Enterprise Linux 6.4 Extended Update Support | kernel-0:2.6.32-358.37.1.el6 | Fixed | RHSA-2014:0284 |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | 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 version of Linux kernel as shipped with Red Hat Enterprise Linux 5 and Red Hat Enterprise MRG 2.
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:C/I:C/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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.57% (0.00566) | 44.95th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.57% (0.00566) | 42.29th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.02% (0.00019) | 2.80th | 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 | 1.10% (0.01104) | 54.09th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.10% (0.01104) | 53.53th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.28% (0.01282) | 67.60th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.10% (0.01104) | 52.45th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.10% (0.01104) | 50.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.10% (0.01104) | 28.85th | v2 (v2022.01.01) |
References (11)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7d3e91a89b7adbc2831334def9e494dd9892f9af x_refsource_CONFIRM
- http://rhn.redhat.com/errata/RHSA-2013-1645.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2014-0284.html vendor-advisoryx_refsource_REDHAT
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.7.2 x_refsource_CONFIRM
- http://www.openwall.com/lists/oss-security/2013/11/18/2 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/63791 vdb-entryx_refsource_BID
- https://access.redhat.com/security/cve/CVE-2013-4591 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1031678 x_refsource_CONFIRMIssue Tracking
- https://github.com/torvalds/linux/commit/7d3e91a89b7adbc2831334def9e494dd9892f9af x_refsource_CONFIRMExploitPatch
- https://nvd.nist.gov/vuln/detail/CVE-2013-4591
- https://www.cve.org/CVERecord?id=CVE-2013-4591
| Link | Providers | Tags |
|---|---|---|
| http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7d3e91a89b7adbc2831334def9e494dd9892f9af | x_refsource_CONFIRM | |
| http://rhn.redhat.com/errata/RHSA-2013-1645.html | vendor-advisoryx_refsource_REDHAT | |
| http://rhn.redhat.com/errata/RHSA-2014-0284.html | vendor-advisoryx_refsource_REDHAT | |
| http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.7.2 | x_refsource_CONFIRM | |
| http://www.openwall.com/lists/oss-security/2013/11/18/2 | mailing-listx_refsource_MLIST | |
| http://www.securityfocus.com/bid/63791 | vdb-entryx_refsource_BID | |
| https://access.redhat.com/security/cve/CVE-2013-4591 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1031678 | x_refsource_CONFIRMIssue Tracking | |
| https://github.com/torvalds/linux/commit/7d3e91a89b7adbc2831334def9e494dd9892f9af | x_refsource_CONFIRMExploitPatch | |
| https://nvd.nist.gov/vuln/detail/CVE-2013-4591 | ||
| https://www.cve.org/CVERecord?id=CVE-2013-4591 |
Change history (0)
No recorded changes yet.