CVE-2017-8797
Summary
| CVE | CVE-2017-8797 |
|---|---|
| State | PUBLISHED |
| Assigner | mitre |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2017-07-02 17:29:00 UTC |
| Updated | 2025-04-20 01:37:25 UTC |
| Description | The NFSv4 server in the Linux kernel before 4.11.3 does not properly validate the layout type when processing the NFSv4 pNFS GETDEVICEINFO or LAYOUTGET operand in a UDP packet from a remote attacker. This type value is uninitialized upon encountering certain error conditions. This value is used as an array index for dereferencing, which leads to an OOPS and eventually a DoS of knfsd and a soft-lockup of the whole system. |
Risk And Classification
Primary CVSS: v3.1 7.5 HIGH from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Problem Types: CWE-129 | n/a
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| 2.0 | [email protected] | Primary | 7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
LowAuthentication
NoneConfidentiality
NoneIntegrity
NoneAvailability
CompleteAV:N/AC:L/Au:N/C:N/I:N/A:C
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Linux | Linux Kernel | All | All | All | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| oss-security - CVE-2017-8797 Linux kernel: nfsd: remote DoS | af854a3a-2127-422b-91ae-364da2661108 | www.openwall.com | Mailing List, Patch, VDB Entry |
| Linux Kernel NFSv4 Server Input Validation Flaw in pNFS LAYOUTGET Command Lets Remote Users Cause the Target Service to Crash - SecurityTracker | af854a3a-2127-422b-91ae-364da2661108 | www.securitytracker.com | Broken Link, Third Party Advisory, VDB Entry |
| nfsd: encoders mustn't use unitialized values in error cases · torvalds/linux@f961e3f · GitHub | af854a3a-2127-422b-91ae-364da2661108 | github.com | Patch, Third Party Advisory |
| Red Hat Customer Portal | af854a3a-2127-422b-91ae-364da2661108 | access.redhat.com | Third Party Advisory |
| kernel/git/torvalds/linux.git - Linux kernel source tree | af854a3a-2127-422b-91ae-364da2661108 | git.kernel.org | Patch, Vendor Advisory |
| Red Hat Customer Portal | af854a3a-2127-422b-91ae-364da2661108 | access.redhat.com | Third Party Advisory |
| Linux Kernel CVE-2017-8797 Denial of Service Vulnerability | af854a3a-2127-422b-91ae-364da2661108 | www.securityfocus.com | Third Party Advisory, VDB Entry |
| nfsd: fix undefined behavior in nfsd4_layout_verify · torvalds/linux@b550a32 · GitHub | af854a3a-2127-422b-91ae-364da2661108 | github.com | Patch, Third Party Advisory |
| kernel/git/torvalds/linux.git - Linux kernel source tree | af854a3a-2127-422b-91ae-364da2661108 | git.kernel.org | Patch, Vendor Advisory |
| 1466329 – (CVE-2017-8797) CVE-2017-8797 kernel: NFSv4 server does not properly validate layout type when processing NFSv4 pNFS LAYOUTGET operand | af854a3a-2127-422b-91ae-364da2661108 | bugzilla.redhat.com | Issue Tracking, Third Party Advisory, VDB Entry |
| Red Hat Customer Portal | af854a3a-2127-422b-91ae-364da2661108 | access.redhat.com | Third Party Advisory |
| www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.11.3 | af854a3a-2127-422b-91ae-364da2661108 | www.kernel.org | Release Notes, Vendor Advisory |
| Red Hat Customer Portal | af854a3a-2127-422b-91ae-364da2661108 | access.redhat.com | Third Party Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.