Unrated severityNVD Advisory· Published Oct 22, 2020· Updated Aug 4, 2024
CVE-2020-27672
CVE-2020-27672
Description
An issue was discovered in Xen through 4.14.x allowing x86 guest OS users to cause a host OS denial of service, achieve data corruption, or possibly gain privileges by exploiting a race condition that leads to a use-after-free involving 2MiB and 1GiB superpages.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
31- Xen/Xendescription
- osv-coords29 versionspkg:rpm/opensuse/xen&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/xen&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/xen&distro=openSUSE%20Tumbleweedpkg:rpm/suse/xen&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/xen&distro=SUSE%20Enterprise%20Storage%205pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP1pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP2pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg: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%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/xen&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/xen&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/xen&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/xen&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/xen&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209
< 4.12.3_10-lp151.2.27.1+ 28 more
- (no CPE)range: < 4.12.3_10-lp151.2.27.1
- (no CPE)range: < 4.13.1_10-lp152.2.12.1
- (no CPE)range: < 4.15.1_01-1.2
- (no CPE)range: < 4.9.4_14-3.77.1
- (no CPE)range: < 4.9.4_14-3.77.1
- (no CPE)range: < 4.10.4_18-3.44.1
- (no CPE)range: < 4.10.4_18-3.44.1
- (no CPE)range: < 4.12.3_10-3.31.1
- (no CPE)range: < 4.13.1_10-3.13.1
- (no CPE)range: < 4.12.3_10-3.31.1
- (no CPE)range: < 4.13.1_10-3.13.1
- (no CPE)range: < 4.4.4_46-61.58.1
- (no CPE)range: < 4.7.6_12-43.70.1
- (no CPE)range: < 4.7.6_12-43.70.1
- (no CPE)range: < 4.9.4_14-3.77.1
- (no CPE)range: < 4.9.4_14-3.77.1
- (no CPE)range: < 4.11.4_10-2.39.2
- (no CPE)range: < 4.12.3_10-3.27.1
- (no CPE)range: < 4.7.6_12-43.70.1
- (no CPE)range: < 4.9.4_14-3.77.1
- (no CPE)range: < 4.11.4_10-2.39.2
- (no CPE)range: < 4.12.3_10-3.27.1
- (no CPE)range: < 4.10.4_18-3.44.1
- (no CPE)range: < 4.12.3_10-3.27.1
- (no CPE)range: < 4.7.6_12-43.70.1
- (no CPE)range: < 4.9.4_14-3.77.1
- (no CPE)range: < 4.11.4_10-2.39.2
- (no CPE)range: < 4.9.4_14-3.77.1
- (no CPE)range: < 4.11.4_10-2.39.2
Patches
Vulnerability mechanics
References
8- lists.opensuse.org/opensuse-security-announce/2020-10/msg00075.htmlmitrevendor-advisoryx_refsource_SUSE
- lists.opensuse.org/opensuse-security-announce/2020-11/msg00025.htmlmitrevendor-advisoryx_refsource_SUSE
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XIK57QJOVOPWH6RFRNMGOBCROBCKMDG2/mitrevendor-advisoryx_refsource_FEDORA
- security.gentoo.org/glsa/202011-06mitrevendor-advisoryx_refsource_GENTOO
- www.debian.org/security/2020/dsa-4804mitrevendor-advisoryx_refsource_DEBIAN
- www.openwall.com/lists/oss-security/2021/01/19/7mitremailing-listx_refsource_MLIST
- xenbits.xen.org/xsa/advisory-345.htmlmitrex_refsource_CONFIRM
- xenbits.xen.org/xsa/advisory-345.htmlmitrex_refsource_MISC
News mentions
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