Description
(1) TMEMC_SAVE_GET_CLIENT_WEIGHT, (2) TMEMC_SAVE_GET_CLIENT_CAP, (3) TMEMC_SAVE_GET_CLIENT_FLAGS and (4) TMEMC_SAVE_END in the Transcendent Memory (TMEM) in Xen 4.0, 4.1, and 4.2 allow local guest OS users to cause a denial of service (NULL pointer dereference or memory corruption and host crash) or possibly have other unspecified impacts via a NULL client id.
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 | 4.1.4-1 | — |
| Debian 13 | xen | 4.1.4-1 | — |
| Debian 12 | xen | 4.1.4-1 | — |
References
- 55082 third-party-advisory
- 1027482 vdb-entry
- http://wiki.xen.org/wiki/Security_Announcements#XSA-15_multiple_TMEM_hypercall_vulnerabilities
- 51413 third-party-advisory
- GLSA-201309-24 vendor-advisory
- 55410 vdb-entry
- SUSE-SU-2012:1486 vendor-advisory
- [oss-security] 20120905 Xen Security Advisory 15 (CVE-2012-3497) - multiple TMEM hypercall vulnerabilities mailing-list
- xen-tmem-priv-esc(78268) vdb-entry
- 85199 vdb-entry
- [Xen-announce] 20120905 Xen Security Advisory 15 (CVE-2012-3497) - multiple TMEM hypercall vulnerabilities mailing-list
- openSUSE-SU-2012:1572 vendor-advisory
- 50472 third-party-advisory
- SUSE-SU-2012:1487 vendor-advisory
- SUSE-SU-2014:0446 vendor-advisory
- 51352 third-party-advisory
- 51324 third-party-advisory
- GLSA-201604-03 vendor-advisory
- openSUSE-SU-2012:1573 vendor-advisory