CVE-2017-7487
The ipxitf_ioctl function in net/ipx/af_ipx.c in the Linux kernel through 4.11.1 mishandles reference counts, which allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a failed SIOCGIFADDR ioctl…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.38%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The ipxitf_ioctl function in net/ipx/af_ipx.c in the Linux kernel through 4.11.1 mishandles reference counts, which allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a failed SIOCGIFADDR ioctl call for an IPX interface.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.38% probability · 31th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel · debian/debian linux
- Source
- secalert@redhat.com
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ee0d8d8482345ff97a75a7d747efc309f13b0d80Patch
- http://www.debian.org/security/2017/dsa-3886Third Party Advisory
- http://www.securityfocus.com/bid/98439Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039237Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1447734Issue Tracking, Patch
- https://github.com/torvalds/linux/commit/ee0d8d8482345ff97a75a7d747efc309f13b0d80Issue Tracking, Patch, Vendor Advisory
- https://patchwork.ozlabs.org/patch/757549/Patch
- https://source.android.com/security/bulletin/2017-09-01Third Party Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ee0d8d8482345ff97a75a7d747efc309f13b0d80Patch
- http://www.debian.org/security/2017/dsa-3886Third Party Advisory
- http://www.securityfocus.com/bid/98439Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039237Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1447734Issue Tracking, Patch
- https://github.com/torvalds/linux/commit/ee0d8d8482345ff97a75a7d747efc309f13b0d80Issue Tracking, Patch, Vendor Advisory
- https://patchwork.ozlabs.org/patch/757549/Patch
- https://source.android.com/security/bulletin/2017-09-01Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.