CVE-2015-4163 — NULL Pointer Dereference in XEN

CWE-476 — NULL Pointer Dereference6 documents6 sources
Severity
4.9MEDIUMNVD
EPSS
0.1%
top 68.90%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
XENDebian XEN
Timeline
PublishedJun 15
Latest updateMay 14

Description

GNTTABOP_swap_grant_ref in Xen 4.2 through 4.5 does not check the grant table operation version, which allows local guest domains to cause a denial of service (NULL pointer dereference) via a hypercall without a GNTTABOP_setup_table or GNTTABOP_set_version.

CVSS vector

AV:L/AC:L/C:N/I:N/A:CExploitability: 3.9 | Impact: 6.9

Affected Packages3 packages

▶debiandebian/xen< xen 4.6.0-1 (bookworm)
▶Debianxen/xen< 4.6.0-1+3
▶NVDxen/xen10 versions+9

🔴Vulnerability Details

2
GHSA
GHSA-586c-2349-hf65: GNTTABOP_swap_grant_ref in Xen 4↗2022-05-14
▶
OSV
CVE-2015-4163: GNTTABOP_swap_grant_ref in Xen 4↗2015-06-15
▶

📋Vendor Advisories

2
Red Hat
xen: GNTTABOP_swap_grant_ref operation misbehavior (xsa-134)↗2015-06-11
▶
Debian
CVE-2015-4163: xen - GNTTABOP_swap_grant_ref in Xen 4.2 through 4.5 does not check the grant table op...↗2015
▶

💬Community

1
Bugzilla
CVE-2015-4163 xen: GNTTABOP_swap_grant_ref operation misbehavior (xsa-134)↗2015-05-29
▶