Access Restriction Bypass Affecting xen package, versions <4.1.4-1


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.08% (37th percentile)

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  • Snyk IDSNYK-DEBIAN9-XEN-367204
  • published23 Nov 2012
  • disclosed23 Nov 2012

Introduced: 23 Nov 2012

CVE-2012-6036  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade Debian:9 xen to version 4.1.4-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xen package and not the xen package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

The (1) memc_save_get_next_page, (2) tmemc_restore_put_page and (3) tmemc_restore_flush_page functions in the Transcendent Memory (TMEM) in Xen 4.0, 4.1, and 4.2 do not check for negative id pools, which allows local guest OS users to cause a denial of service (memory corruption and host crash) or possibly execute arbitrary code via unspecified vectors. NOTE: this issue was originally published as part of CVE-2012-3497, which was too general; CVE-2012-3497 has been SPLIT into this ID and others.

CVSS Scores

version 3.1