CVE-2015-7969 — Missing Release of Memory after Effective Lifetime in XEN

CWE-3998 documents6 sources
Severity
4.9MEDIUMNVD
EPSS
0.1%
top 82.71%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
XENDebian XEN
Timeline
PublishedOct 30
Latest updateMay 14

Description

Multiple memory leaks in Xen 4.0 through 4.6.x allow local guest administrators or domains with certain permission to cause a denial of service (memory consumption) via a large number of "teardowns" of domains with the vcpu pointer array allocated using the (1) XEN_DOMCTL_max_vcpus hypercall or the xenoprofile state vcpu pointer array allocated using the (2) XENOPROF_get_buffer or (3) XENOPROF_set_passive hypercall.

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/xen25 versions+24

🔴Vulnerability Details

2
GHSA
GHSA-fpcv-vm34-hph7: Multiple memory leaks in Xen 4↗2022-05-14
▶
OSV
CVE-2015-7969: Multiple memory leaks in Xen 4↗2015-10-30
▶

📋Vendor Advisories

2
Red Hat
xen: leak of main per-domain vcpu pointer array↗2015-10-29
▶
Debian
CVE-2015-7969: xen - Multiple memory leaks in Xen 4.0 through 4.6.x allow local guest administrators ...↗2015
▶

💬Community

3
Bugzilla
CVE-2015-7969 CVE-2015-7970 CVE-2015-7813 CVE-2015-7814 CVE-2015-7812 CVE-2015-7971 CVE-2015-7835 CVE-2015-7972 xen: various flaws [fedora-all]↗2015-10-29
▶
Bugzilla
xen: Leak of per-domain profiling-related vcpu pointer array on x86↗2015-10-16
▶
Bugzilla
CVE-2015-7969 xen: leak of main per-domain vcpu pointer array↗2015-10-16
▶