Description
An issue was discovered in xenoprof in Xen through 4.13.x, allowing guest OS users (with active profiling) to obtain sensitive information about other guests, cause a denial of service, or possibly gain privileges. For guests for which "active" profiling was enabled by the administrator, the xenoprof code uses the standard Xen shared ring structure. Unfortunately, this code did not treat the guest as a potential adversary: it trusts the guest not to modify buffer size information or modify head / tail pointers in unexpected ways. This can crash the host (DoS). Privilege escalation cannot be ruled out.
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 | 4.11.4-1 | — |
| Debian 13 | xen | 4.11.4-1 | — |
| Debian 12 | xen | 4.11.4-1 | — |
| Debian 10 | xen | 4.11.4+24-gddaaccbbab-1~deb10u1 | DSA-4723-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | xen | 4.11.3+24-g14b62ab3e5-1ubuntu2.3 | USN-5617-1 |
| Ubuntu 18.04 LTS | xen | No fix yet | — |
| Ubuntu 16.04 LTS | xen | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | xen | 4.12.2_04-3.15.1 | SUSE-SU-2020:1124-1 |
| SLES 12 SP5 | xen | 4.12.2_04-3.11.1 | SUSE-SU-2020:1139-1 |
| SLES 12 SP4 | xen | 4.11.3_04-2.23.1 | SUSE-SU-2020:1138-1 |
| SLES 12 SP3 | xen | 4.9.4_06-3.62.1 | SUSE-SU-2020:1630-1 |
| SLES 12 SP2 | xen | 4.7.6_08-43.64.1 | SUSE-SU-2020:2234-1 |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 SP4 | xen | 4.4.4_42-61.52.1 | SUSE-SU-2020:14444-1 |
| SLES for SAP 15 | xen | 4.10.4_10-3.31.1 | SUSE-SU-2020:1634-1 |
| SLES for SAP 12 SP5 | xen | 4.12.2_04-3.11.1 | SUSE-SU-2020:1139-1 |
| SLES for SAP 12 SP4 | xen | 4.11.3_04-2.23.1 | SUSE-SU-2020:1138-1 |
| SLES for SAP 12 SP3 | xen | 4.9.4_06-3.62.1 | SUSE-SU-2020:1630-1 |
| SLES for SAP 12 SP2 | xen | 4.7.6_08-43.64.1 | SUSE-SU-2020:2234-1 |
| SLE HPC 15 | xen | 4.10.4_10-3.31.1 | SUSE-SU-2020:1634-1 |
| SUSE OpenStack Cloud Crowbar 8 | xen | 4.9.4_06-3.62.1 | SUSE-SU-2020:1630-1 |
| SUSE OpenStack Cloud 8 | xen | 4.9.4_06-3.62.1 | SUSE-SU-2020:1630-1 |
| SUSE OpenStack Cloud 7 | xen | 4.7.6_08-43.64.1 | SUSE-SU-2020:2234-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | xen | 4.2.5_22-45.36.1 | SUSE-SU-2020:14448-1 |
| SUSE HPE Helion OpenStack 8 | xen | 4.9.4_06-3.62.1 | SUSE-SU-2020:1630-1 |
| SUSE Enterprise Storage 5 | xen | 4.9.4_06-3.62.1 | SUSE-SU-2020:1630-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.1 | xen | 4.12.2_04-lp151.2.15.1 | openSUSE-SU-2020:0599-1 |
Advisories 11
- USN-5617-1 xen vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DSA-4723-1 xen - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2020:1124-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:1630-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:0599-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:1139-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:14448-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:1634-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2234-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:14444-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:1138-1 Security update for xen SUSE / openSUSE Security Updates · May 2, 2025
References
- https://xenbits.xen.org/xsa/advisory-313.html
- http://xenbits.xen.org/xsa/advisory-313.html
- [oss-security] 20200414 Xen Security Advisory 313 v3 (CVE-2020-11740,CVE-2020-11741) - multiple xenoprof issues mailing-list
- FEDORA-2020-440457afe4 vendor-advisory
- FEDORA-2020-295ed0b1e0 vendor-advisory
- openSUSE-SU-2020:0599 vendor-advisory
- FEDORA-2020-cbc3149753 vendor-advisory
- GLSA-202005-08 vendor-advisory
- DSA-4723 vendor-advisory