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OVAL Definitions
>
OVAL Definition Details
Id
oval:com.altx-soft.nix:def:164824
[Rus]
Version
3
Class
patch
ALTXid
373673
Language
English
Severity
High
Title
CentOS Stream 8 -- security update for qemu-guest-agent
Description
CentOS Stream security update for qemu-guest-agent.
Family
unix
Platform
CentOS Stream 8
Product
qemu-guest-agent
Reference
VENDOR: CentOS-Stream-03.12.2021-93150706
VENDOR: CentOS-Stream-03.12.2021-93150706
Id:
CentOS-Stream-03.12.2021-93150706
Reference:
https://feeds.centos.org
CVE: CVE-2021-20257
CVE: CVE-2021-20257
Id:
CVE-2021-20257
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20257
Comment
: An infinite loop flaw was found in the e1000 NIC emulator of the QEMU. This issue occurs while processing transmits (tx) descriptors in process_tx_desc if various descriptor fields are initialized with invalid values. This flaw allows a guest to consume CPU cycles on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
CVSSv2 Score:
2.1
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:N/I:N/A:P
CVSSv3 Score:
6.5
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
CHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CWE:
835 (Loop with Unreachable Exit Condition ('Infinite Loop'))
References:
https://lists.gnu.org/archive/html/qemu-devel/2021-02/msg07428.html (MISC)
https://github.com/qemu/qemu/commit/3de46e6fc489c52c9431a8a832ad8170a7569bd8 (MISC)
https://bugzilla.redhat.com/show_bug.cgi?id=1930087 (MISC)
https://www.openwall.com/lists/oss-security/2021/02/25/2 (MISC)
https://security.netapp.com/advisory/ntap-20220425-0003/ (CONFIRM)
GLSA-202208-27 (GENTOO)
[debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update (MLIST)
CVE: CVE-2021-3748
CVE: CVE-2021-3748
Id:
CVE-2021-3748
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3748
Comment
: A use-after-free vulnerability was found in the virtio-net device of QEMU. It could occur when the descriptor's address belongs to the non direct access region, due to num_buffers being set after the virtqueue elem has been unmapped. A malicious guest could use this flaw to crash QEMU, resulting in a denial of service condition, or potentially execute code on the host with the privileges of the QEMU process.
CVSSv2 Score:
6.9
Access vector:
LOCAL
Access complexity:
MEDIUM
Authentication:
NONE
Confidentiality impact:
COMPLETE
Integrity impact:
COMPLETE
Availability impact:
COMPLETE
CVSSv2 Vector:
AV:L/AC:M/Au:N/C:C/I:C/A:C
CVSSv3 Score:
7.5
Attack vector:
LOCAL
Attack complexity:
HIGH
Privileges required:
HIGH
User interaction:
NONE
Scope:
CHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
CWE:
416 (Use After Free)
References:
https://github.com/qemu/qemu/commit/bedd7e93d01961fcb16a97ae45d93acf357e11f6 (MISC)
https://ubuntu.com/security/CVE-2021-3748 (MISC)
https://bugzilla.redhat.com/show_bug.cgi?id=1998514 (MISC)
https://lists.nongnu.org/archive/html/qemu-devel/2021-09/msg00388.html (MISC)
[debian-lts-announce] 20220404 [SECURITY] [DLA 2970-1] qemu security update (MLIST)
https://security.netapp.com/advisory/ntap-20220425-0004/ (CONFIRM)
GLSA-202208-27 (GENTOO)
[debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update (MLIST)
CVE: CVE-2021-3930
CVE: CVE-2021-3930
Id:
CVE-2021-3930
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3930
Comment
: An off-by-one error was found in the SCSI device emulation in QEMU. It could occur while processing MODE SELECT commands in mode_sense_page() if the 'page' argument was set to MODE_PAGE_ALLS (0x3f). A malicious guest could use this flaw to potentially crash QEMU, resulting in a denial of service condition.
CVSSv2 Score:
2.1
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:N/I:N/A:P
CVSSv3 Score:
6.5
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
CHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CWE:
193 (Off-by-one Error)
References:
https://bugzilla.redhat.com/show_bug.cgi?id=2020588 (MISC)
https://security.netapp.com/advisory/ntap-20220225-0007/ (CONFIRM)
[debian-lts-announce] 20220404 [SECURITY] [DLA 2970-1] qemu security update (MLIST)
GLSA-202208-27 (GENTOO)
[debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update (MLIST)
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