CVE catalog
CVE-2023-34328
xen: CVE-2023-34328
- Severity
- Medium · CVSS 5.7
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.24% · Oct 25, 2026
[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] AMD CPUs since ~2014 have extensions to normal x86 debugging functionality. Xen supports guests using these extensions. Unfortunately there are errors in Xen's handling of the guest state, leading to denials of service. 1) CVE-2023-34327 - An HVM vCPU can end up operating in the context of a previous vCPUs debug mask state. 2) CVE-2023-34328 - A PV vCPU can place a breakpoint over the live GDT. This allows the PV vCPU to exploit XSA-156 / CVE-2015-8104 and lock up the CPU entirely.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | xen | sid | 4.20.4+39-gf1e1321c87-1 | fixed |
| Debian | xen | forky | 4.20.4+39-gf1e1321c87-1 | fixed |
| Debian | xen | trixie | 4.20.3+127-gc42374a105-0+deb13u1 | fixed |
| Debian | xen | trixie-security | 4.20.4+39-gf1e1321c87-0+deb13u1 | fixed |
| Debian | xen | bookworm | 4.17.5+72-g01140da4e8-1 | fixed |
| Debian | xen | bookworm-security | 4.17.7-0+deb12u1 | fixed |
| Alpine | xen | 3.15 | 4.15.5-r3 | fixed |
| Alpine | xen | 3.16 | 4.16.5-r3 | fixed |
| Alpine | xen | 3.17 | 4.16.5-r3 | fixed |
| Alpine | xen | 3.18 | 4.17.2-r3 | fixed |
| Alpine | xen | 3.19 | 4.17.2-r3 | fixed |
| Alpine | xen | 3.20 | 4.17.2-r3 | fixed |
| Alpine | xen | 3.21 | 4.17.2-r3 | fixed |
| Alpine | xen | 3.22 | 4.17.2-r3 | fixed |
| Alpine | xen | 3.23 | 4.17.2-r3 | fixed |
| Alpine | xen | 3.24 | 4.17.2-r3 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | xen | source | sid | 4.17.2+55-g0b56bed864-1 | not yet assigned | Not reported | Not reported |
| Debian | xen | source | forky | 4.17.2+55-g0b56bed864-1 | not yet assigned | Not reported | Not reported |
| Debian | xen | source | trixie | 4.17.2+55-g0b56bed864-1 | not yet assigned | Not reported | Not reported |
| Debian | xen | source | bookworm | 4.17.2+76-ge1f9cb16e2-1~deb12u1 | not yet assigned | Not reported | Not reported |
| Alpine | xen | apk | 3.15 | 4.15.5-r3 | Not reported | ALPINE-CVE-2023-34328 | Not reported |
| Alpine | xen | apk | 3.16 | 4.16.5-r3 | Not reported | ALPINE-CVE-2023-34328 | Not reported |
| Alpine | xen | apk | 3.17 | 4.16.5-r3 | Not reported | ALPINE-CVE-2023-34328 | Not reported |
| Alpine | xen | apk | 3.18 | 4.17.2-r3 | Not reported | ALPINE-CVE-2023-34328 | Not reported |
| Alpine | xen | apk | 3.19 | 4.17.2-r3 | Not reported | ALPINE-CVE-2023-34328 | Not reported |
| Alpine | xen | apk | 3.20 | 4.17.2-r3 | Not reported | ALPINE-CVE-2023-34328 | Not reported |
| Alpine | xen | apk | 3.21 | 4.17.2-r3 | Not reported | ALPINE-CVE-2023-34328 | Not reported |
| Alpine | xen | apk | 3.22 | 4.17.2-r3 | Not reported | ALPINE-CVE-2023-34328 | Not reported |
| Alpine | xen | apk | 3.23 | 4.17.2-r3 | Not reported | ALPINE-CVE-2023-34328 | Not reported |
| Alpine | xen | apk | 3.24 | 4.17.2-r3 | Not reported | ALPINE-CVE-2023-34328 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2023_4054-1.json]
- [https://osv.dev/vulnerability/ALPINE-CVE-2023-34328]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2023-34328]
- [https://security-tracker.debian.org/tracker/CVE-2023-34328]
- [https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-2617.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]