CVE-2021-28699
Summary
| CVE | CVE-2021-28699 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2021-08-27 19:15:00 UTC |
| Updated | 2023-11-07 03:32:00 UTC |
| Description | inadequate grant-v2 status frames array bounds check The v2 grant table interface separates grant attributes from grant status. That is, when operating in this mode, a guest has two tables. As a result, guests also need to be able to retrieve the addresses that the new status tracking table can be accessed through. For 32-bit guests on x86, translation of requests has to occur because the interface structure layouts commonly differ between 32- and 64-bit. The translation of the request to obtain the frame numbers of the grant status table involves translating the resulting array of frame numbers. Since the space used to carry out the translation is limited, the translation layer tells the core function the capacity of the array within translation space. Unfortunately the core function then only enforces array bounds to be below 8 times the specified value, and would write past the available space if enough frame numbers needed storing. |
Risk And Classification
Problem Types: NVD-CWE-noinfo
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Debian | Debian Linux | 11.0 | All | All | All |
| Operating System | Fedoraproject | Fedora | 33 | All | All | All |
| Operating System | Fedoraproject | Fedora | 34 | All | All | All |
| Operating System | Fedoraproject | Fedora | 35 | All | All | All |
| Operating System | Xen | Xen | All | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| [SECURITY] Fedora 33 Update: xen-4.14.2-3.fc33 - package-announce - Fedora Mailing-Lists | lists.fedoraproject.org | ||
| [SECURITY] Fedora 33 Update: xen-4.14.2-3.fc33 - package-announce - Fedora Mailing-Lists | FEDORA | lists.fedoraproject.org | |
| FEDORA-2021-081f9bf5d2 | FEDORA | lists.fedoraproject.org | |
| Xen: Multiple Vulnerabilities (GLSA 202208-23) — Gentoo security | GENTOO | security.gentoo.org | |
| Debian -- Security Information -- DSA-4977-1 xen | DEBIAN | www.debian.org | |
| [SECURITY] Fedora 34 Update: xen-4.14.2-3.fc34 - package-announce - Fedora Mailing-Lists | FEDORA | lists.fedoraproject.org | |
| [SECURITY] Fedora 34 Update: xen-4.14.2-3.fc34 - package-announce - Fedora Mailing-Lists | lists.fedoraproject.org | ||
| xenbits.xenproject.org/xsa/advisory-382.txt | MISC | xenbits.xenproject.org | |
| [SECURITY] Fedora 35 Update: xen-4.15.0-6.fc35 - package-announce - Fedora Mailing-Lists | lists.fedoraproject.org | ||
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
LEGACY: Array
Legacy QID Mappings
- 178798 Debian Security Update for xen (DSA 4977-1)
- 183792 Debian Security Update for xen (CVE-2021-28699)
- 281879 Fedora Security Update for xen (FEDORA-2021-4f129cc0c1)
- 281880 Fedora Security Update for xen (FEDORA-2021-d68ed12e46)
- 500801 Alpine Linux Security Update for xen
- 501519 Alpine Linux Security Update for xen
- 501797 Alpine Linux Security Update for xen
- 504544 Alpine Linux Security Update for xen
- 710600 Gentoo Linux Xen Multiple Vulnerabilities (GLSA 202208-23)
- 751074 SUSE Enterprise Linux Security Update for xen (SUSE-SU-2021:2925-1)
- 751083 SUSE Enterprise Linux Security Update for xen (SUSE-SU-2021:2924-1)
- 751085 SUSE Enterprise Linux Security Update for xen (SUSE-SU-2021:2943-1)
- 751087 SUSE Enterprise Linux Security Update for xen (SUSE-SU-2021:2955-1)
- 751100 OpenSUSE Security Update for xen (openSUSE-SU-2021:2923-1)
- 751103 SUSE Enterprise Linux Security Update for xen (SUSE-SU-2021:2957-1)
- 751111 OpenSUSE Security Update for xen (openSUSE-SU-2021:1236-1)