Description
The Xen netback functionality in the Linux kernel before 3.7.8 allows guest OS users to cause a denial of service (loop) by triggering ring pointer corruption.
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 | linux | 3.2.39-1 | — |
| Debian 13 | linux | 3.2.39-1 | — |
| Debian 12 | linux | 3.2.39-1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | kernel +12 | 2.6.18-348.4.1.el5 | RHSA-2013:0747 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 SP4 | kernel-ec2 +8 | 3.0.101-108.90.1 | SUSE-SU-2019:14051-1 |
Advisories 2
- SUSE-SU-2019:14051-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- RHSA-2013:0747 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Nov 22, 2025
References
- MDVSA-2013:176 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=910883
- https://github.com/torvalds/linux/commit/48856286b64e4b66ec62b94e504d0b29c1ade664
- openSUSE-SU-2013:0395 vendor-advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=48856286b64e4b66ec62b94e504d0b29c1ade664
- SUSE-SU-2013:0674 vendor-advisory
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.7.8
- openSUSE-SU-2013:0925 vendor-advisory
- [oss-security] 20130205 Xen Security Advisory 39 (CVE-2013-0216,CVE-2013-0217) - Linux netback DoS via malicious guest ring. mailing-list