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veracodeVeracode Vulnerability DatabaseVERACODE:32030
HistorySep 09, 2021 - 6:17 a.m.

Denial Of Service (DoS)

2021-09-0906:17:48
Veracode Vulnerability Database
sca.analysiscenter.veracode.com
7

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

4.4 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:M/Au:N/C:P/I:P/A:P

JSON

xen:edge is vulnerable to denial of service. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, are de-allocated when a guest switches (back) from v2 to v1. Freeing such pages requires that the hypervisor enforce that no parallel request can result in the addition of a mapping of such a page to a guest. That enforcement was missing, allowing guests to retain access to pages that were freed and perhaps re-used for other purposes. Unfortunately, when XSA-379 was being prepared, this similar issue was not noticed.

Related

nessus 14
ubuntucve 1
fedora 3
openvas 14
alpinelinux 1
prion 1
suse 2
debiancve 1
xen 1
osv 2
cve 1
citrix 1
debian 1
gentoo 1
nessus
nessus
SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2021:3181-1)
2021-09-22 00:00:00
openSUSE 15 Security Update : xen (openSUSE-SU-2021:1301-1)
2021-09-22 00:00:00
openSUSE 15 Security Update : xen (openSUSE-SU-2021:3140-1)
2021-09-19 00:00:00
ubuntucve
ubuntucve
CVE-2021-28701
2021-09-08 00:00:00
fedora
fedora
[SECURITY] Fedora 34 Update: xen-4.14.2-4.fc34
2021-09-16 19:15:05
[SECURITY] Fedora 35 Update: xen-4.15.0-7.fc35
2021-09-24 20:50:56
[SECURITY] Fedora 33 Update: xen-4.14.2-4.fc33
2021-09-17 15:20:25
openvas
openvas
SUSE: Security Advisory (SUSE-SU-2021:3181-1)
2021-09-23 00:00:00
SUSE: Security Advisory (SUSE-SU-2021:3140-1)
2021-09-23 00:00:00
Fedora: Security Advisory for xen (FEDORA-2021-11577e5229)
2021-09-18 00:00:00
alpinelinux
alpinelinux
CVE-2021-28701
2021-09-08 14:15:00
prion
prion
Race condition
2021-09-08 14:15:00
suse
suse
Security update for xen (moderate)
2021-09-22 00:00:00
Security update for xen (moderate)
2021-09-18 00:00:00
debiancve
debiancve
CVE-2021-28701
2021-09-08 14:15:00
xen
xen
Another race in XENMAPSPACE_grant_table handling
2021-09-08 12:00:00
osv
osv
CVE-2021-28701
2021-09-08 14:15:08
xen - security update
2021-09-20 00:00:00
cve
cve
CVE-2021-28701
2021-09-08 14:15:00
citrix
citrix
Citrix Hypervisor Security Update
2021-09-07 10:10:42
debian
debian
[SECURITY] [DSA 4977-1] xen security update
2021-09-20 19:08:44
gentoo
gentoo
Xen: Multiple Vulnerabilities
2022-08-14 00:00:00

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

4.4 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:M/Au:N/C:P/I:P/A:P

JSON
Related for VERACODE:32030
nessus14ubuntucve1fedora3openvas14alpinelinux1prion1suse2debiancve1xen1osv2cve1citrix1debian1gentoo1