Unrated severityNVD Advisory· Published Dec 15, 2020· Updated Aug 4, 2024
CVE-2020-29481
CVE-2020-29481
Description
An issue was discovered in Xen through 4.14.x. Access rights of Xenstore nodes are per domid. Unfortunately, existing granted access rights are not removed when a domain is being destroyed. This means that a new domain created with the same domid will inherit the access rights to Xenstore nodes from the previous domain(s) with the same domid. Because all Xenstore entries of a guest below /local/domain/ are being deleted by Xen tools when a guest is destroyed, only Xenstore entries of other guests still running are affected. For example, a newly created guest domain might be able to read sensitive information that had belonged to a previously existing guest domain. Both Xenstore implementations (C and Ocaml) are vulnerable.
Affected products
30- 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
< 4.12.4_06-lp151.2.36.1+ 28 more
- (no CPE)range: < 4.12.4_06-lp151.2.36.1
- (no CPE)range: < 4.13.2_06-lp152.2.21.1
- (no CPE)range: < 4.15.1_01-1.2
- (no CPE)range: < 4.9.4_16-3.80.1
- (no CPE)range: < 4.9.4_16-3.80.1
- (no CPE)range: < 4.10.4_24-3.53.1
- (no CPE)range: < 4.10.4_24-3.53.1
- (no CPE)range: < 4.12.4_06-3.40.1
- (no CPE)range: < 4.13.2_06-3.22.1
- (no CPE)range: < 4.12.4_06-3.40.1
- (no CPE)range: < 4.13.2_06-3.22.1
- (no CPE)range: < 4.4.4_48-61.61.1
- (no CPE)range: < 4.7.6_14-43.73.1
- (no CPE)range: < 4.7.6_14-43.73.1
- (no CPE)range: < 4.9.4_16-3.80.1
- (no CPE)range: < 4.9.4_16-3.80.1
- (no CPE)range: < 4.11.4_16-2.48.1
- (no CPE)range: < 4.12.4_06-3.36.1
- (no CPE)range: < 4.7.6_14-43.73.1
- (no CPE)range: < 4.9.4_16-3.80.1
- (no CPE)range: < 4.11.4_16-2.48.1
- (no CPE)range: < 4.12.4_06-3.36.1
- (no CPE)range: < 4.10.4_24-3.53.1
- (no CPE)range: < 4.12.4_06-3.36.1
- (no CPE)range: < 4.7.6_14-43.73.1
- (no CPE)range: < 4.9.4_16-3.80.1
- (no CPE)range: < 4.11.4_16-2.48.1
- (no CPE)range: < 4.9.4_16-3.80.1
- (no CPE)range: < 4.11.4_16-2.48.1
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
5- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2C6M6S3CIMEBACH6O7V4H2VDANMO6TVA/mitrevendor-advisoryx_refsource_FEDORA
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OBLV6L6Q24PPQ2CRFXDX4Q76KU776GKI/mitrevendor-advisoryx_refsource_FEDORA
- www.debian.org/security/2020/dsa-4812mitrevendor-advisoryx_refsource_DEBIAN
- www.openwall.com/lists/oss-security/2020/12/16/3mitremailing-listx_refsource_MLIST
- xenbits.xenproject.org/xsa/advisory-322.htmlmitrex_refsource_MISC
News mentions
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