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OVAL Definitions
>
OVAL Definition Details
Id
oval:com.altx-soft.nix:def:150254
[Rus]
Version
2
Class
patch
ALTXid
352306
Language
English
Severity
Medium
Title
MGASA-2021-0191 -- security update for kernel-linus
Description
This kernel-linus update is based on upstream 5.10.30 and fixes security issues.
Family
unix
Platform
Mageia 7
Mageia 8
Product
kernel-linus
Reference
VENDOR: MGASA-2021-0191
VENDOR: MGASA-2021-0191
Id:
MGASA-2021-0191
Reference:
https://advisories.mageia.org/MGASA-2021-0191.html
CVE: CVE-2020-25670
CVE: CVE-2020-25670
Id:
CVE-2020-25670
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25670
Comment
: A vulnerability was found in Linux Kernel where refcount leak in llcp_sock_bind() causing use-after-free which might lead to privilege escalations.
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:
416 (Use After Free)
References:
[oss-security] 20201101 [CVE-2020-25670,CVE-2020-25671,CVE-2020-25672,CVE-2020-25673]Linux kernel: many bugs in nfc socket (MLIST)
[oss-security] 20210511 CVE-2021-23134: Linux kernel: UAF in nfc sockets (MLIST)
https://www.openwall.com/lists/oss-security/2020/11/01/1 (MISC)
[debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update (MLIST)
[debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update (MLIST)
https://security.netapp.com/advisory/ntap-20210702-0008/ (CONFIRM)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UTVACC6PGS6OSD3EYY7FZUAZT2EUMFH5/ (MISC)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PW3OASG7OEMHANDWBM5US5WKTOC76KMH/ (MISC)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VEIEGQXUW37YHZ5MTAZTDCIMHUN26NJS/ (MISC)
CVE: CVE-2020-25671
CVE: CVE-2020-25671
Id:
CVE-2020-25671
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25671
Comment
: A vulnerability was found in Linux Kernel, where a refcount leak in llcp_sock_connect() causing use-after-free which might lead to privilege escalations.
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:
416 (Use After Free)
References:
[oss-security] 20201101 [CVE-2020-25670,CVE-2020-25671,CVE-2020-25672,CVE-2020-25673]Linux kernel: many bugs in nfc socket (MLIST)
https://www.openwall.com/lists/oss-security/2020/11/01/1 (MISC)
[debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update (MLIST)
[debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update (MLIST)
https://security.netapp.com/advisory/ntap-20210702-0008/ (CONFIRM)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UTVACC6PGS6OSD3EYY7FZUAZT2EUMFH5/ (MISC)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PW3OASG7OEMHANDWBM5US5WKTOC76KMH/ (MISC)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VEIEGQXUW37YHZ5MTAZTDCIMHUN26NJS/ (MISC)
CVE: CVE-2020-25672
CVE: CVE-2020-25672
Id:
CVE-2020-25672
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25672
Comment
: A memory leak vulnerability was found in Linux kernel in llcp_sock_connect
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:
401 (Improper Release of Memory Before Removing Last Reference ('Memory Leak'))
References:
[oss-security] 20201101 [CVE-2020-25670,CVE-2020-25671,CVE-2020-25672,CVE-2020-25673]Linux kernel: many bugs in nfc socket (MLIST)
https://www.openwall.com/lists/oss-security/2020/11/01/1 (MISC)
[debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update (MLIST)
[debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update (MLIST)
https://security.netapp.com/advisory/ntap-20210702-0008/ (CONFIRM)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UTVACC6PGS6OSD3EYY7FZUAZT2EUMFH5/ (MISC)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PW3OASG7OEMHANDWBM5US5WKTOC76KMH/ (MISC)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VEIEGQXUW37YHZ5MTAZTDCIMHUN26NJS/ (MISC)
CVE: CVE-2021-3483
CVE: CVE-2021-3483
Id:
CVE-2021-3483
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3483
Comment
: A flaw was found in the Nosy driver in the Linux kernel. This issue allows a device to be inserted twice into a doubly-linked list, leading to a use-after-free when one of these devices is removed. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. Versions before kernel 5.12-rc6 are affected
CVSSv2 Score:
4.6
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
PARTIAL
Integrity impact:
PARTIAL
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:P/I:P/A:P
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:
416 (Use After Free)
References:
[oss-security] 20210407 CVE-2021-3483: Linux kernel: a use-after-free bug in nosy driver (MLIST)
https://bugzilla.redhat.com/show_bug.cgi?id=1948045 (MISC)
[debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update (MLIST)
[debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update (MLIST)
https://security.netapp.com/advisory/ntap-20210629-0002/ (CONFIRM)
CVE: CVE-2021-29154
CVE: CVE-2021-29154
Id:
CVE-2021-29154
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29154
Comment
: BPF JIT compilers in the Linux kernel through 5.11.12 have incorrect computation of branch displacements, allowing them to execute arbitrary code within the kernel context. This affects arch/x86/net/bpf_jit_comp.c and arch/x86/net/bpf_jit_comp32.c.
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:
77 (Improper Neutralization of Special Elements used in a Command ('Command Injection'))
References:
https://www.openwall.com/lists/oss-security/2021/04/08/1 (MISC)
https://news.ycombinator.com/item?id=26757760 (MISC)
http://packetstormsecurity.com/files/162434/Kernel-Live-Patch-Security-Notice-LSN-0076-1.html (MISC)
https://security.netapp.com/advisory/ntap-20210604-0006/ (CONFIRM)
[debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update (MLIST)
[debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update (MLIST)
N/A (N/A)
FEDORA-2021-e71c033f88 ()
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e4d4d456436bfb2fe412ee2cd489f7658449b098 ()
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=26f55a59dc65ff77cd1c4b37991e26497fc68049 ()
CVE: CVE-2021-29657
CVE: CVE-2021-29657
Id:
CVE-2021-29657
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29657
Comment
: arch/x86/kvm/svm/nested.c in the Linux kernel before 5.11.12 has a use-after-free in which an AMD KVM guest can bypass access control on host OS MSRs when there are nested guests, aka CID-a58d9166a756. This occurs because of a TOCTOU race condition associated with a VMCB12 double fetch in nested_svm_vmrun.
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:
7.4
Attack vector:
LOCAL
Attack complexity:
HIGH
Privileges required:
NONE
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE:
416 (Use After Free)
References:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a58d9166a756a0f4a6618e4f593232593d6df134 (CONFIRM)
https://bugs.chromium.org/p/project-zero/issues/detail?id=2177 (MISC)
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.12 (CONFIRM)
http://packetstormsecurity.com/files/163324/KVM-nested_svm_vmrun-Double-Fetch.html (MISC)
https://security.netapp.com/advisory/ntap-20210902-0008/ (CONFIRM)
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