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OVAL Definitions
>
OVAL Definition Details
Id
oval:com.altx-soft.nix:def:154963
[Rus]
Version
2
Class
patch
ALTXid
359039
Language
English
Severity
High
Title
ELSA-2021-9306 -- Unbreakable Enterprise kernel security update
Description
[5.4.17-2102.202.5.el8uek]
- sctp: delay auto_asconf init until binding the first addr (Xin Long) [Orabug: 32907967] {CVE-2021-23133} {CVE-2021-23133}
- dm ioctl: fix out of bounds array access when no devices (Mikulas Patocka) [Orabug: 32860491] {CVE-2021-31916}
- uek-rpm: update kABI lists for the new symbols (Saeed Mirzamohammadi) [Orabug: 32883836]
- md/raid1: properly indicate failure when ending a failed write request (Paul Clements) [Orabug: 32888143]
- scsi: lpfc: Fix DMA virtual address ptr assignment in bsg (James Smart) [Orabug: 32827840]
Family
unix
Platform
Oracle Linux 7
Oracle Linux 8
Product
kernel-uek
Reference
VENDOR: ELSA-2021-9306
VENDOR: ELSA-2021-9306
Id:
ELSA-2021-9306
Reference:
http://linux.oracle.com/errata/ELSA-2021-9306.html
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-2020-28374
CVE: CVE-2020-28374
Id:
CVE-2020-28374
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28374
Comment
: In drivers/target/target_core_xcopy.c in the Linux kernel before 5.10.7, insufficient identifier checking in the LIO SCSI target code can be used by remote attackers to read or write files via directory traversal in an XCOPY request, aka CID-2896c93811e3. For example, an attack can occur over a network if the attacker has access to one iSCSI LUN. The attacker gains control over file access because I/O operations are proxied via an attacker-selected backstore.
CVSSv2 Score:
5.5
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
SINGLE
Confidentiality impact:
PARTIAL
Integrity impact:
PARTIAL
Availability impact:
NONE
CVSSv2 Vector:
AV:N/AC:L/Au:S/C:P/I:P/A:N
CVSSv3 Score:
8.1
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
NONE
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE:
22 (Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'))
References:
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.7 (CONFIRM)
https://bugzilla.suse.com/show_bug.cgi?id=1178372 (MISC)
https://github.com/torvalds/linux/commit/2896c93811e39d63a4d9b63ccf12a8fbc226e5e4 (CONFIRM)
https://bugzilla.suse.com/attachment.cgi?id=844938 (MISC)
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2896c93811e39d63a4d9b63ccf12a8fbc226e5e4 (CONFIRM)
[oss-security] 20210113 Re: CVE-2020-28374: Linux SCSI target (LIO) unrestricted copy offload (MLIST)
[oss-security] 20210113 Re: CVE-2020-28374: Linux SCSI target (LIO) unrestricted copy offload (MLIST)
http://packetstormsecurity.com/files/161229/Kernel-Live-Patch-Security-Notice-LSN-0074-1.html (MISC)
DSA-4843 (DEBIAN)
[debian-lts-announce] 20210212 [SECURITY] [DLA 2557-1] linux-4.19 security update (MLIST)
https://security.netapp.com/advisory/ntap-20210219-0002/ (CONFIRM)
[debian-lts-announce] 20210309 [SECURITY] [DLA 2586-1] linux security update (MLIST)
FEDORA-2021-620fb40359 ()
FEDORA-2021-082e638d02 ()
FEDORA-2021-4a91649cf3 ()
CVE: CVE-2021-31916
CVE: CVE-2021-31916
Id:
CVE-2021-31916
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31916
Comment
: An out-of-bounds (OOB) memory write flaw was found in list_devices in drivers/md/dm-ioctl.c in the Multi-device driver module in the Linux kernel before 5.12. A bound check failure allows an attacker with special user (CAP_SYS_ADMIN) privilege to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability.
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:
6.7
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
HIGH
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE:
787 (Out-of-bounds Write)
References:
https://seclists.org/oss-sec/2021/q1/268 (MISC)
https://bugzilla.redhat.com/show_bug.cgi?id=1946965 (MISC)
https://github.com/torvalds/linux/commit/4edbe1d7bcffcd6269f3b5eb63f710393ff2ec7a (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)
CVE: CVE-2021-23133
CVE: CVE-2021-23133
Id:
CVE-2021-23133
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23133
Comment
: A race condition in Linux kernel SCTP sockets (net/sctp/socket.c) before 5.12-rc8 can lead to kernel privilege escalation from the context of a network service or an unprivileged process. If sctp_destroy_sock is called without sock_net(sk)->sctp.addr_wq_lock then an element is removed from the auto_asconf_splist list without any proper locking. This can be exploited by an attacker with network service privileges to escalate to root or from the context of an unprivileged user directly if a BPF_CGROUP_INET_SOCK_CREATE is attached which denies creation of some SCTP socket.
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
Attack vector:
LOCAL
Attack complexity:
HIGH
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:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE:
362 (Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'))
References:
N/A (CONFIRM)
N/A (CONFIRM)
[oss-security] 20210510 Re: CVE-2021-23133: Linux kernel: race condition in sctp sockets (MLIST)
[oss-security] 20210510 Re: CVE-2021-23133: Linux kernel: race condition in sctp sockets (MLIST)
[oss-security] 20210510 Re: CVE-2021-23133: Linux kernel: race condition in sctp sockets (MLIST)
[oss-security] 20210510 Re: CVE-2021-23133: Linux kernel: race condition in sctp sockets (MLIST)
https://security.netapp.com/advisory/ntap-20210611-0008/ (CONFIRM)
[debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update (MLIST)
[debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update (MLIST)
FEDORA-2021-8cd093f639 ()
FEDORA-2021-e6b4847979 ()
FEDORA-2021-a963f04012 ()
CVE: CVE-2020-36310
CVE: CVE-2020-36310
Id:
CVE-2020-36310
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36310
Comment
: An issue was discovered in the Linux kernel before 5.8. arch/x86/kvm/svm/svm.c allows a set_memory_region_test infinite loop for certain nested page faults, aka CID-e72436bc3a52.
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:
5.5
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE:
835 (Loop with Unreachable Exit Condition ('Infinite Loop'))
References:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e72436bc3a5206f95bb384e741154166ddb3202e (MISC)
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8 (MISC)
DSA-5095 (DEBIAN)
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