Medium severity4.9NVD Advisory· Published Aug 27, 2021· Updated Jun 17, 2026
CVE-2021-28700
CVE-2021-28700
Description
xen/arm: No memory limit for dom0less domUs The dom0less feature allows an administrator to create multiple unprivileged domains directly from Xen. Unfortunately, the memory limit from them is not set. This allow a domain to allocate memory beyond what an administrator originally configured.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
26cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
- osv-coords19 versionspkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/xen&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.0pkg: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%20Server%2015%20SP1-BCLpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/xen&distro=SUSE%20Manager%20Server%204.0pkg:rpm/suse/xen&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP2pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Micro%205.0pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/xen&distro=SUSE%20Manager%20Proxy%204.0pkg:rpm/opensuse/xen&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/xen&distro=openSUSE%20Leap%2015.3
< 4.12.4_12-3.49.1+ 18 more
- (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: < 4.14.2_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_12-3.52.1
- (no CPE)range: < 4.13.3_02-3.34.1
- (no CPE)range: < 4.12.4_12-3.52.1
- (no CPE)range: < 4.13.3_02-3.34.1
- (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_12-3.49.1
- (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-lp152.2.27.1
- (no CPE)range: < 4.14.2_04-3.9.1
Patches
Vulnerability mechanics
References
6- security.gentoo.org/glsa/202208-23nvdThird Party Advisory
- www.debian.org/security/2021/dsa-4977nvdThird Party Advisory
- xenbits.xenproject.org/xsa/advisory-383.txtnvdVendor Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2VQCFAPBNGBBAOMJZG6QBREOG5IIDZID/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FZCNPSRPGFCQRYE2BI4D4Q4SCE56ANV2/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LPRVHW4J4ZCPPOHZEWP5MOJT7XDGFFPJ/nvd
News mentions
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