Description
Xen through 4.7.x allows local ARM guest OS users to cause a denial of service (host crash) via vectors involving an asynchronous abort while at EL2.
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 | 4.8.0-1 | — |
| Debian 13 | xen | 4.8.0-1 | — |
| Debian 12 | xen | 4.8.0-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | xen | 4.6.0-1ubuntu4.3 | — |
| Ubuntu 14.04 LTS | xen | 4.4.2-0ubuntu0.14.04.9 | — |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | xen | 4.7.1-r3 | — |
| Alpine v3.23 | xen | 4.7.1-r3 | — |
| Alpine v3.22 | xen | 4.7.1-r3 | — |
| Alpine v3.21 | xen | 4.7.1-r3 | — |
| Alpine v3.20 | xen | 4.7.1-r3 | — |
Show 17 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | xen | 4.7.1-r3 | — |
| Alpine v3.18 | xen | 4.7.1-r3 | — |
| Alpine v3.17 | xen | 4.7.1-r3 | — |
| Alpine v3.16 | xen | 4.7.1-r3 | — |
| Alpine v3.15 | xen | 4.7.1-r3 | — |
| Alpine v3.14 | xen | 4.7.1-r3 | — |
| Alpine v3.13 | xen | 4.7.1-r3 | — |
| Alpine v3.12 | xen | 4.7.1-r3 | — |
| Alpine v3.11 | xen | 4.7.1-r3 | — |
| Alpine v3.10 | xen | 4.7.1-r3 | — |
| Alpine v3.9 | xen | 4.7.1-r3 | — |
| Alpine v3.8 | xen | 4.7.1-r3 | — |
| Alpine v3.7 | xen | 4.7.1-r3 | — |
| Alpine v3.6 | xen | 4.7.1-r3 | — |
| Alpine v3.5 | xen | 4.7.1-r3 | — |
| Alpine v3.4 | xen | 4.6.3-r6 | — |
| Alpine v3.3 | xen | 4.6.3-r4 | — |
References
- http://xenbits.xen.org/xsa/xsa201-2.patch
- http://xenbits.xen.org/xsa/advisory-201.html
- GLSA-201612-56 vendor-advisory
- 1037358 vdb-entry
- [oss-security] 20161129 Xen Security Advisory 201 - ARM guests may induce host asynchronous abort mailing-list
- 94581 vdb-entry
- [oss-security] 20161204 Re: Xen Security Advisory 201 - ARM guests may induce host asynchronous abort mailing-list