Description
(1) xenbaked and (2) xenmon.py in Xen 3.1 and earlier allow local users to truncate arbitrary files via a symlink attack on /tmp/xenq-shm.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 4.0 | xen-3.0 | 3.0.3-0-4 | DSA-1395-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | xen +1 | 3.0.3-41.el5_1.5 | RHSA-2008:0194 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Virtualization 5 | xen +1 | 3.0.3-41.el5_1.5 | RHSA-2008:0194 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | xen | 4.15.1_01-1.2 | openSUSE-SU-2024:11520-1 |
Advisories 3
- RHSA-2008:0194 Red Hat Security Advisory: xen security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-1395-1 xen-3.0 - insecure temporary files Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:11520-1 xen-4.15.1_01-1.2 on GA media SUSE / openSUSE Security Updates · May 7, 2025
References
- ADV-2007-3621 vdb-entry
- MDKSA-2007:203 vendor-advisory
- 27408 third-party-advisory
- RHSA-2008:0194 vendor-advisory
- oval:org.mitre.oval:def:9913 vdb-entry signature
- 1018859 vdb-entry
- 41343 vdb-entry
- 27486 third-party-advisory
- xen-xenqshm-symlink(37403) vdb-entry
- 29963 third-party-advisory
- FEDORA-2007-2708 vendor-advisory
- 26190 vdb-entry
- 27389 third-party-advisory
- 27497 third-party-advisory
- DSA-1395 vendor-advisory
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=447795
- FEDORA-2007-737 vendor-advisory
- 41342 vdb-entry