Description
The libxenlight (libxl) toolstack library in Xen 4.0.x, 4.1.x, and 4.2.x uses weak permissions for xenstore keys for paravirtualised and emulated serial console devices, which allows local guest administrators to modify the xenstore value via unspecified vectors.
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 14 | xen | 4.3.0-1 | — |
| Debian 13 | xen | 4.3.0-1 | — |
| Debian 12 | xen | 4.3.0-1 | — |
| Debian 7 | xen | 4.1.4-3+deb7u2 | DSA-3006-1 |
Advisories 1
- DSA-3006-1 xen - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- 55082 third-party-advisory
- [oss-security] 20130626 Xen Security Advisory 57 (CVE-2013-2211) - libxl allows guest write access to sensitive console related xenstore keys mailing-list
- GLSA-201309-24 vendor-advisory
- [oss-security] 20130625 Re: Xen Security Advisory 57 - libxl allows guest write access to sensitive console related xenstore keys mailing-list
- SUSE-SU-2014:0446 vendor-advisory
- DSA-3006 vendor-advisory