Fedora 33: 2021-ef772b418c Alert: Xenstore Access Problems Detected

This package contains the XenD daemon and xm command line

tools, needed to manage virtual machines running under the

Xen hypervisor

xenstore watch notifications lacking permission checks [XSA-115, CVE-2020-29480]

(#1908091) Xenstore: new domains inheriting existing node permissions [XSA-322,

CVE-2020-29481] (#1908095) Xenstore: wrong path length check [XSA-323,

CVE-2020-29482] (#1908096) Xenstore: guests can crash xenstored via watchs

[XSA-324, CVE-2020-29484] (#1908088) Xenstore: guests can disturb domain cleanup

[XSA-325, CVE-2020-29483] (#1908087) oxenstored memory leak in reset_watches

[XSA-330, CVE-2020-29485] (#1908000) undue recursion in x86 HVM context switch

code [XSA-348, CVE-2020-29566] (#1908085) oxenstored: node ownership can be

changed by unprivileged clients [XSA-352, CVE-2020-29486] (#1908003) oxenstored:

permissions not checked on root node [XSA-353, CVE-2020-29479] (#1908002) FIFO

event channels control block related ordering [XSA-358, CVE-2020-29570]

(#1907931) FIFO event channels control structure ordering [XSA-359,

CVE-2020-29571] (#1908089)

* Wed Dec 16 2020 Michael Young - 4.13.2-5

- xenstore watch notifications lacking permission checks [XSA-115,

CVE-2020-29480] (#1908091)

- Xenstore: new domains inheriting existing node permissions [XSA-322,

CVE-2020-29481] (#1908095)

- Xenstore: wrong path length check [XSA-323, CVE-2020-29482] (#1908096)

- Xenstore: guests can crash xenstored via watchs [XSA-324, CVE-2020-29484]

(#1908088)

- Xenstore: guests can disturb domain cleanup [XSA-325, CVE-2020-29483]

(#1908087)

- oxenstored memory leak in reset_watches [XSA-330, CVE-2020-29485]

(#1908000)

- undue recursion in x86 HVM context switch code [XSA-348, CVE-2020-29566]

(#1908085)

- oxenstored: node ownership can be changed by unprivileged clients

[XSA-352, CVE-2020-29486] (#1908003)

- oxenstored: permissions not checked on root node [XSA-353, CVE-2020-29479]

(#1908002)

- FIFO event channels control block related ordering [XSA-358,

CVE-2020-29570] (#1907931)

- FIFO event channels control structure ordering [XSA-359, CVE-2020-29571]

(#1908089)

[ 1 ] Bug #1905623 - CVE-2020-29485 xen: oxenstored memory leak in reset_watches (XSA-330)

https://bugzilla.redhat.com/show_bug.cgi?id=1905623

[ 2 ] Bug #1905626 - CVE-2020-29482 xen: Xenstore: wrong path length check (XSA-323)

https://bugzilla.redhat.com/show_bug.cgi?id=1905626

[ 3 ] Bug #1905632 - CVE-2020-29481 xen: Xenstore: new domains inheriting existing node permissions (XSA-322)

https://bugzilla.redhat.com/show_bug.cgi?id=1905632

[ 4 ] Bug #1905635 - CVE-2020-29484 xen: Xenstore: guests can crash xenstored via watchs (XSA-324)

https://bugzilla.redhat.com/show_bug.cgi?id=1905635

[ 5 ] Bug #1905648 - CVE-2020-29483 xen: Xenstore: guests can disturb domain cleanup (XSA-325)

https://bugzilla.redhat.com/show_bug.cgi?id=1905648

[ 6 ] Bug #1905652 - CVE-2020-29486 xen: oxenstored: node ownership can be changed by unprivileged clients (XSA-352)

https://bugzilla.redhat.com/show_bug.cgi?id=1905652

[ 7 ] Bug #1905668 - CVE-2020-29479 xen: oxenstored: permissions not checked on root node (XSA-353)

https://bugzilla.redhat.com/show_bug.cgi?id=1905668

[ 8 ] Bug #1905669 - CVE-2020-29566 xen: undue recursion in x86 HVM context switch code (XSA-348)

https://bugzilla.redhat.com/show_bug.cgi?id=1905669

[ 9 ] Bug #1905672 - CVE-2020-29480 xen: xenstore watch notifications lacking permission checks (XSA-115)

https://bugzilla.redhat.com/show_bug.cgi?id=1905672

[ 10 ] Bug #1905675 - CVE-2020-29570 xen: FIFO event channels control block related ordering (XSA-358)

https://bugzilla.redhat.com/show_bug.cgi?id=1905675

[ 11 ] Bug #1905676 - CVE-2020-29571 xen: FIFO event channels control structure ordering

https://bugzilla.redhat.com/show_bug.cgi?id=1905676

su -c 'dnf upgrade --advisory FEDORA-2020-df772b417b' at the command

line. For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

All packages are signed with the Fedora Project GPG key. More details on the

GPG keys used by the Fedora Project can be found at

https://fedoraproject.org/security/

package-announce mailing list -- package-announce@lists.fedoraproject.org

To unsubscribe send an email to package-announce-leave@lists.fedoraproject.org

Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/

List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines

List Archives: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/