CVE-2017-14318
Description
An issue was discovered in Xen 4.5.x through 4.9.x. The function __gnttab_cache_flush handles GNTTABOP_cache_flush grant table operations. It checks to see if the calling domain is the owner of the page that is to be operated on. If it is not, the owner's grant table is checked to see if a grant mapping to the calling domain exists for the page in question. However, the function does not check to see if the owning domain actually has a grant table or not. Some special domains, such as DOMID_XEN, DOMID_IO and DOMID_COW are created without grant tables. Hence, if __gnttab_cache_flush operates on a page owned by these special domains, it will attempt to dereference a NULL pointer in the domain struct.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
32cpe:2.3:o:xen:xen:4.5.0:*:*:*:*:*:*:*+ 18 more
- cpe:2.3:o:xen:xen:4.5.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.5.1:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.5.2:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.5.3:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.5.5:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.6.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.6.1:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.6.3:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.6.4:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.6.5:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.6.6:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.7.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.7.1:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.7.2:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.7.3:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.8.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.8.1:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.9.0:*:*:*:*:*:*:*
- (no CPE)range: 4.5.x - 4.9.x
- Range: 4.5.x - 4.9.x
- Range: 4.5.x - 4.9.x
- osv-coords11 versionspkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP2pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP2pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3pkg:rpm/suse/xen&distro=SUSE%20OpenStack%20Cloud%206
< 4.7.3_04-43.12.1+ 10 more
- (no CPE)range: < 4.7.3_04-43.12.1
- (no CPE)range: < 4.9.0_12-3.15.1
- (no CPE)range: < 4.5.5_16-22.28.1
- (no CPE)range: < 4.7.3_04-43.12.1
- (no CPE)range: < 4.9.0_12-3.15.1
- (no CPE)range: < 4.5.5_16-22.28.1
- (no CPE)range: < 4.7.3_04-43.12.1
- (no CPE)range: < 4.9.0_12-3.15.1
- (no CPE)range: < 4.7.3_04-43.12.1
- (no CPE)range: < 4.9.0_12-3.15.1
- (no CPE)range: < 4.5.5_16-22.28.1
Patches
Vulnerability mechanics
References
5- xenbits.xen.org/xsa/advisory-232.htmlnvdPatchVendor Advisory
- www.securityfocus.com/bid/100817nvdThird Party AdvisoryVDB Entry
- www.securitytracker.com/id/1039349nvdThird Party AdvisoryVDB Entry
- support.citrix.com/article/CTX227185nvd
- www.debian.org/security/2017/dsa-4050nvd
News mentions
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