CVEvulnerability
CVE-2017-8797
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2017-07-02
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 7.8 HIGH — AV:N/AC:L/Au:N/C:N/I:N/A:C
- Weaknesses
- CWE-129
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.
Affected configurations
• linux linux kernel (>= 4.0 < 4.1.40)
• linux linux kernel (>= 4.2 < 4.4.70)
• linux linux kernel (>= 4.5 < 4.9.30)
• linux linux kernel (>= 4.11 < 4.11.3)
Related
Weakness · CWE (1)
- CWE-129 Improper Validation of Array Index weakness
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b550a32e60a4941994b437a8d662432a486235a5 Patch, Vendor Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f961e3f2acae94b727380c0b74e2d3954d0edf79 Patch, Vendor Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.11.3 Release Notes, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2017/06/27/5 Mailing List, Patch, VDB Entry
- http://www.securityfocus.com/bid/99298 Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038790 Broken Link, Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:1842 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2077 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2437 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2669 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1466329 Issue Tracking, Third Party Advisory, VDB Entry
- https://github.com/torvalds/linux/commit/b550a32e60a4941994b437a8d662432a486235a5 Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/f961e3f2acae94b727380c0b74e2d3954d0edf79 Patch, Third Party Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b550a32e60a4941994b437a8d662432a486235a5 Patch, Vendor Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f961e3f2acae94b727380c0b74e2d3954d0edf79 Patch, Vendor Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.11.3 Release Notes, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2017/06/27/5 Mailing List, Patch, VDB Entry
- http://www.securityfocus.com/bid/99298 Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038790 Broken Link, Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:1842 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2077 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2437 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2669 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1466329 Issue Tracking, Third Party Advisory, VDB Entry
- https://github.com/torvalds/linux/commit/b550a32e60a4941994b437a8d662432a486235a5 Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/f961e3f2acae94b727380c0b74e2d3954d0edf79 Patch, Third Party Advisory