Unrated severityNVD Advisory· Published Oct 22, 2020· Updated Aug 4, 2024
CVE-2020-27674
CVE-2020-27674
Description
An issue was discovered in Xen through 4.14.x allowing x86 PV guest OS users to gain guest OS privileges by modifying kernel memory contents, because invalidation of TLB entries is mishandled during use of an INVLPG-like attack technique.
Affected products
27- Xen/Xendescription
- osv-coords26 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%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%2015pkg: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
< 4.12.4_04-lp151.2.33.1+ 25 more
- (no CPE)range: < 4.12.4_04-lp151.2.33.1
- (no CPE)range: < 4.13.2_04-lp152.2.18.1
- (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_22-3.50.1
- (no CPE)range: < 4.10.4_22-3.50.1
- (no CPE)range: < 4.12.4_04-3.37.1
- (no CPE)range: < 4.13.2_04-3.19.1
- (no CPE)range: < 4.12.4_04-3.37.1
- (no CPE)range: < 4.13.2_04-3.19.1
- (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_14-2.45.1
- (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_14-2.45.1
- (no CPE)range: < 4.10.4_22-3.50.1
- (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_14-2.45.1
- (no CPE)range: < 4.9.4_14-3.77.1
- (no CPE)range: < 4.11.4_14-2.45.1
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
7- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PZAM3LYJ5TZLSSNL3KXFILM46QKVTOUA/mitrevendor-advisoryx_refsource_FEDORA
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U3U4LNKKXU4UP4Z5XP6TMIWSML3QODPE/mitrevendor-advisoryx_refsource_FEDORA
- 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/2021/01/19/5mitremailing-listx_refsource_MLIST
- xenbits.xen.org/xsa/advisory-286.htmlmitrex_refsource_MISC
News mentions
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