Medium severity5.5NVD Advisory· Published Jun 30, 2021· Updated Jun 17, 2026
CVE-2021-28693
CVE-2021-28693
Description
xen/arm: Boot modules are not scrubbed The bootloader will load boot modules (e.g. kernel, initramfs...) in a temporary area before they are copied by Xen to each domain memory. To ensure sensitive data is not leaked from the modules, Xen must "scrub" them before handing the page over to the allocator. Unfortunately, it was discovered that modules will not be scrubbed on Arm.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
23- osv-coords19 versionspkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP2pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/xen&distro=SUSE%20Enterprise%20Storage%206pkg: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%20Micro%205.0pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP3pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/xen&distro=SUSE%20Manager%20Proxy%204.0pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCLpkg:rpm/suse/xen&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.0pkg:rpm/suse/xen&distro=SUSE%20Manager%20Server%204.0pkg:rpm/opensuse/xen&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/xen&distro=openSUSE%20Leap%2015.3
< 4.13.3_02-3.34.1+ 18 more
- (no CPE)range: < 4.13.3_02-3.34.1
- (no CPE)range: < 4.12.4_12-3.49.1
- (no CPE)range: < 4.12.4_12-3.52.1
- (no CPE)range: < 4.13.3_02-3.34.1
- (no CPE)range: < 4.12.4_12-3.52.1
- (no CPE)range: < 4.12.4_12-3.49.1
- (no CPE)range: < 4.12.4_12-3.52.1
- (no CPE)range: < 4.13.3_02-3.34.1
- (no CPE)range: < 4.14.2_04-3.9.1
- (no CPE)range: < 4.14.2_04-3.9.1
- (no CPE)range: < 4.12.4_12-3.52.1
- (no CPE)range: < 4.12.4_12-3.52.1
- (no CPE)range: < 4.12.4_12-3.52.1
- (no CPE)range: < 4.12.4_12-3.49.1
- (no CPE)range: < 4.12.4_12-3.52.1
- (no CPE)range: < 4.12.4_12-3.52.1
- (no CPE)range: < 4.12.4_12-3.52.1
- (no CPE)range: < 4.13.3_02-lp152.2.27.1
- (no CPE)range: < 4.14.2_04-3.9.1
Patches
Vulnerability mechanics
References
2- security.gentoo.org/glsa/202107-30nvdThird Party Advisory
- xenbits.xenproject.org/xsa/advisory-372.txtnvdVendor Advisory
News mentions
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