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OVAL Definitions
>
OVAL Definition Details
Id
oval:ru.altx-soft.nix:def:173695
[Eng]
Version
1
Class
patch
ALTXid
385642
Language
Russian
Severity
Medium
Title
RED OS MUROM 7.3 - обновление пакета kernel-lt
Description
Уязвимость ядра Linux (CVE-2021-43267, CVE-2021-38201, CVE-2021-3653, CVE-2021-3656, CVE-2021-41073)
Family
unix
Platform
RED OS MUROM 7.3
Product
kernel-lt
Reference
VENDOR: ROS-20220207-01
VENDOR: ROS-20220207-01
Id:
ROS-20220207-01
Reference:
https://redos.red-soft.ru/support/secure/uyazvimosti/uyazvimost-yadra-linux-cve-2021-43267-cve-2021-38201-cve-2021-3653-cve-2021-3656-cve-2021-41073/
CVE: CVE-2021-43267
CVE: CVE-2021-43267
Id:
CVE-2021-43267
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43267
Comment
: An issue was discovered in net/tipc/crypto.c in the Linux kernel before 5.14.16. The Transparent Inter-Process Communication (TIPC) functionality allows remote attackers to exploit insufficient validation of user-supplied sizes for the MSG_CRYPTO message type.
CVSSv2 Score:
7.5
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
PARTIAL
Integrity impact:
PARTIAL
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSSv3 Score:
9.8
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE:
1284 ()
References:
https://github.com/torvalds/linux/commit/fa40d9734a57bcbfa79a280189799f76c88f7bb0 (MISC)
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.16 (MISC)
https://security.netapp.com/advisory/ntap-20211125-0002/ (CONFIRM)
[oss-security] 20220210 CVE-2022-0435: Remote Stack Overflow in Linux Kernel TIPC Module since 4.8 (net/tipc) (MLIST)
FEDORA-2021-a093973910 ()
FEDORA-2021-bdd146e463 ()
CVE: CVE-2021-38201
CVE: CVE-2021-38201
Id:
CVE-2021-38201
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38201
Comment
: net/sunrpc/xdr.c in the Linux kernel before 5.13.4 allows remote attackers to cause a denial of service (xdr_set_page_base slab-out-of-bounds access) by performing many NFS 4.2 READ_PLUS operations.
CVSSv2 Score:
5
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSSv3 Score:
7.5
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE:
119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)
References:
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4 (MISC)
https://github.com/torvalds/linux/commit/6d1c0f3d28f98ea2736128ed3e46821496dc3a8c (MISC)
https://security.netapp.com/advisory/ntap-20210902-0010/ (CONFIRM)
CVE: CVE-2021-3653
CVE: CVE-2021-3653
Id:
CVE-2021-3653
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3653
Comment
: A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the "int_ctl" field, this issue could allow a malicious L1 to enable AVIC support (Advanced Virtual Interrupt Controller) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape. This flaw affects Linux kernel versions prior to 5.14-rc7.
CVSSv2 Score:
6.1
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
PARTIAL
Integrity impact:
PARTIAL
Availability impact:
COMPLETE
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:P/I:P/A:C
CVSSv3 Score:
8.8
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
CHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE:
862 (Missing Authorization)
References:
https://www.openwall.com/lists/oss-security/2021/08/16/1 (MISC)
https://bugzilla.redhat.com/show_bug.cgi?id=1983686 (MISC)
[debian-lts-announce] 20211015 [SECURITY] [DLA 2785-1] linux-4.19 security update (MLIST)
[debian-lts-announce] 20211216 [SECURITY] [DLA 2843-1] linux security update (MLIST)
http://packetstormsecurity.com/files/165477/Kernel-Live-Patch-Security-Notice-LSN-0083-1.html (MISC)
CVE: CVE-2021-3656
CVE: CVE-2021-3656
Id:
CVE-2021-3656
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3656
Comment
: A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the "virt_ext" field, this issue could allow a malicious L1 to disable both VMLOAD/VMSAVE intercepts and VLS (Virtual VMLOAD/VMSAVE) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape.
CVSSv2 Score:
7.2
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
COMPLETE
Integrity impact:
COMPLETE
Availability impact:
COMPLETE
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSSv3 Score:
8.8
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
CHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE:
862 (Missing Authorization)
References:
https://www.openwall.com/lists/oss-security/2021/08/16/1 (MISC)
https://github.com/torvalds/linux/commit/c7dfa4009965a9b2d7b329ee970eb8da0d32f0bc (MISC)
https://bugzilla.redhat.com/show_bug.cgi?id=1983988 (MISC)
https://git.kernel.org/pub/scm/virt/kvm/kvm.git/commit/?id=c7dfa4009965a9b2d7b329ee970eb8da0d32f0bc (MISC)
CVE: CVE-2021-41073
CVE: CVE-2021-41073
Id:
CVE-2021-41073
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41073
Comment
: loop_rw_iter in fs/io_uring.c in the Linux kernel 5.10 through 5.14.6 allows local users to gain privileges by using IORING_OP_PROVIDE_BUFFERS to trigger a free of a kernel buffer, as demonstrated by using /proc/<pid>/maps for exploitation.
CVSSv2 Score:
7.2
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
COMPLETE
Integrity impact:
COMPLETE
Availability impact:
COMPLETE
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSSv3 Score:
7.8
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE:
763 (Release of Invalid Pointer or Reference)
References:
http://www.openwall.com/lists/oss-security/2021/09/18/2 (MISC)
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=16c8d2df7ec0eed31b7d3b61cb13206a7fb930cc (MISC)
DSA-4978 (DEBIAN)
https://security.netapp.com/advisory/ntap-20211014-0003/ (CONFIRM)
[oss-security] 20220604 Re: Linux Kernel: Exploitable vulnerability in io_uring (MLIST)
FEDORA-2021-884d245ef8 ()
FEDORA-2021-e0d6215753 ()
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