Unrated severityNVD Advisory· Published Jan 5, 2024· Updated Nov 4, 2025
top-level shadow reference dropped too early for 64-bit PV guests
CVE-2023-34322
Description
For migration as well as to work around kernels unaware of L1TF (see XSA-273), PV guests may be run in shadow paging mode. Since Xen itself needs to be mapped when PV guests run, Xen and shadowed PV guests run directly the respective shadow page tables. For 64-bit PV guests this means running on the shadow of the guest root page table.
In the course of dealing with shortage of memory in the shadow pool associated with a domain, shadows of page tables may be torn down. This tearing down may include the shadow root page table that the CPU in question is presently running on. While a precaution exists to supposedly prevent the tearing down of the underlying live page table, the time window covered by that precaution isn't large enough.
Affected products
31- osv-coords30 versionspkg:rpm/opensuse/xen&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/xen&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/xen&distro=openSUSE%20Leap%20Micro%205.3pkg:rpm/opensuse/xen&distro=openSUSE%20Leap%20Micro%205.4pkg:rpm/opensuse/xen&distro=openSUSE%20Tumbleweedpkg:rpm/suse/xen&distro=SUSE%20Enterprise%20Storage%207.1pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-ESPOSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Micro%205.1pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Micro%205.2pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Micro%205.3pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Micro%205.4pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Micro%205.5pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP4pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP4pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP5pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/xen&distro=SUSE%20Manager%20Proxy%204.2pkg:rpm/suse/xen&distro=SUSE%20Manager%20Server%204.2
< 4.16.5_04-150400.4.34.1+ 29 more
- (no CPE)range: < 4.16.5_04-150400.4.34.1
- (no CPE)range: < 4.17.2_04-150500.3.9.1
- (no CPE)range: < 4.16.5_08-150400.4.40.1
- (no CPE)range: < 4.16.5_08-150400.4.40.1
- (no CPE)range: < 4.17.2_04-1.1
- (no CPE)range: < 4.14.6_04-150300.3.54.1
- (no CPE)range: < 4.12.4_38-150100.3.92.1
- (no CPE)range: < 4.13.5_04-150200.3.77.1
- (no CPE)range: < 4.14.6_04-150300.3.54.1
- (no CPE)range: < 4.14.6_04-150300.3.54.1
- (no CPE)range: < 4.14.6_04-150300.3.54.1
- (no CPE)range: < 4.14.6_04-150300.3.54.1
- (no CPE)range: < 4.16.5_04-150400.4.34.1
- (no CPE)range: < 4.16.5_04-150400.4.34.1
- (no CPE)range: < 4.17.2_08-150500.3.15.1
- (no CPE)range: < 4.16.5_04-150400.4.34.1
- (no CPE)range: < 4.17.2_04-150500.3.9.1
- (no CPE)range: < 4.16.5_04-150400.4.34.1
- (no CPE)range: < 4.17.2_04-150500.3.9.1
- (no CPE)range: < 4.12.4_38-3.94.1
- (no CPE)range: < 4.12.4_38-150100.3.92.1
- (no CPE)range: < 4.13.5_04-150200.3.77.1
- (no CPE)range: < 4.14.6_04-150300.3.54.1
- (no CPE)range: < 4.12.4_38-3.94.1
- (no CPE)range: < 4.12.4_38-150100.3.92.1
- (no CPE)range: < 4.13.5_04-150200.3.77.1
- (no CPE)range: < 4.14.6_04-150300.3.54.1
- (no CPE)range: < 4.12.4_38-3.94.1
- (no CPE)range: < 4.14.6_04-150300.3.54.1
- (no CPE)range: < 4.14.6_04-150300.3.54.1
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1News mentions
0No linked articles in our index yet.