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OVAL Definitions
>
OVAL Definition Details
Id
oval:com.altx-soft.nix:def:90937
[Rus]
Version
6
Class
patch
ALTXid
265538
Language
English
Severity
High
Title
ELSA-2018-4270 -- Unbreakable Enterprise kernel security update
Description
[4.14.35-1818.4.5]
- x86/intel/spectre_v2: Remove unnecessary retp_compiler() test (Boris Ostrovsky) [Orabug: 28814574]
- x86/intel/spectre_v4: Deprecate spec_store_bypass_disable=userspace (Boris Ostrovsky) [Orabug: 28814574]
- x86/speculation: x86_spec_ctrl_set needs to be called unconditionally (Boris Ostrovsky) [Orabug: 28814574]
- x86/speculation: Drop unused DISABLE_IBRS_CLOBBER macro (Boris Ostrovsky) [Orabug: 28814574]
- x86/intel/spectre_v4: Keep SPEC_CTRL_SSBD when IBRS is in use (Boris Ostrovsky) [Orabug: 28814574]
Family
unix
Platform
Oracle Linux 7
Product
kernel-uek
Reference
VENDOR: ELSA-2018-4270
VENDOR: ELSA-2018-4270
Id:
ELSA-2018-4270
Reference:
http://linux.oracle.com/errata/ELSA-2018-4270.html
CVE: CVE-2018-17182
CVE: CVE-2018-17182
Id:
CVE-2018-17182
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-17182
Comment
: An issue was discovered in the Linux kernel through 4.18.8. The vmacache_flush_all function in mm/vmacache.c mishandles sequence number overflows. An attacker can trigger a use-after-free (and possibly gain privileges) via certain thread creation, map, unmap, invalidation, and dereference operations.
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:
https://www.openwall.com/lists/oss-security/2018/09/18/4 (MISC)
https://github.com/torvalds/linux/commit/7a9cdebdcc17e426fb5287e4a82db1dfe86339b2 (MISC)
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7a9cdebdcc17e426fb5287e4a82db1dfe86339b2 (MISC)
45497 (EXPLOIT-DB)
DSA-4308 (DEBIAN)
USN-3777-2 (UBUNTU)
USN-3777-1 (UBUNTU)
USN-3776-2 (UBUNTU)
USN-3776-1 (UBUNTU)
1041748 (SECTRACK)
105417 (BID)
[debian-lts-announce] 20181003 [SECURITY] [DLA 1531-1] linux-4.9 security update (MLIST)
USN-3777-3 (UBUNTU)
RHSA-2018:3656 (REDHAT)
106503 (BID)
https://security.netapp.com/advisory/ntap-20190204-0001/ (CONFIRM)
CVE: CVE-2018-14734
CVE: CVE-2018-14734
Id:
CVE-2018-14734
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-14734
Comment
: drivers/infiniband/core/ucma.c in the Linux kernel through 4.17.11 allows ucma_leave_multicast to access a certain data structure after a cleanup step in ucma_process_join, which allows attackers to cause a denial of service (use-after-free).
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:
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:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE:
416 (Use After Free)
References:
https://github.com/torvalds/linux/commit/cb2595c1393b4a5211534e6f0a0fbad369e21ad8 (MISC)
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cb2595c1393b4a5211534e6f0a0fbad369e21ad8 (MISC)
DSA-4308 (DEBIAN)
[debian-lts-announce] 20181003 [SECURITY] [DLA 1531-1] linux-4.9 security update (MLIST)
USN-3797-2 (UBUNTU)
USN-3797-1 (UBUNTU)
USN-3849-2 (UBUNTU)
USN-3847-3 (UBUNTU)
USN-3847-2 (UBUNTU)
USN-3847-1 (UBUNTU)
USN-3849-1 (UBUNTU)
RHSA-2019:0831 (REDHAT)
RHSA-2019:2043 (REDHAT)
RHSA-2019:2029 (REDHAT)
CVE: CVE-2018-15572
CVE: CVE-2018-15572
Id:
CVE-2018-15572
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15572
Comment
: The spectre_v2_select_mitigation function in arch/x86/kernel/cpu/bugs.c in the Linux kernel before 4.18.1 does not always fill RSB upon a context switch, which makes it easier for attackers to conduct userspace-userspace spectreRSB attacks.
CVSSv2 Score:
2.1
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
PARTIAL
Integrity impact:
NONE
Availability impact:
NONE
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:P/I:N/A:N
CVSSv3 Score:
6.5
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
CHANGED
Confidentiality impact:
HIGH
Integrity impact:
NONE
Availability impact:
NONE
CVSSv3 Vector:
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
References:
https://github.com/torvalds/linux/commit/fdf82a7856b32d905c39afc85e34364491e46346 (MISC)
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.1 (MISC)
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fdf82a7856b32d905c39afc85e34364491e46346 (MISC)
DSA-4308 (DEBIAN)
USN-3777-2 (UBUNTU)
USN-3777-1 (UBUNTU)
USN-3776-2 (UBUNTU)
USN-3776-1 (UBUNTU)
USN-3775-2 (UBUNTU)
USN-3775-1 (UBUNTU)
[debian-lts-announce] 20181003 [SECURITY] [DLA 1531-1] linux-4.9 security update (MLIST)
USN-3777-3 (UBUNTU)
CVE: CVE-2017-13168
CVE: CVE-2017-13168
Id:
CVE-2017-13168
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13168
Comment
: An elevation of privilege vulnerability in the kernel scsi driver. Product: Android. Versions: Android kernel. Android ID A-65023233.
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:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE:
732 (Incorrect Permission Assignment for Critical Resource)
References:
https://source.android.com/security/bulletin/pixel/2017-12-01 (CONFIRM)
USN-3753-2 (UBUNTU)
USN-3753-1 (UBUNTU)
USN-3822-2 (UBUNTU)
USN-3820-3 (UBUNTU)
USN-3820-2 (UBUNTU)
USN-3820-1 (UBUNTU)
USN-3822-1 (UBUNTU)
CVE: CVE-2018-14610
CVE: CVE-2018-14610
Id:
CVE-2018-14610
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-14610
Comment
: An issue was discovered in the Linux kernel through 4.17.10. There is out-of-bounds access in write_extent_buffer() when mounting and operating a crafted btrfs image, because of a lack of verification that each block group has a corresponding chunk at mount time, within btrfs_read_block_groups in fs/btrfs/extent-tree.c.
CVSSv2 Score:
7.1
Access vector:
NETWORK
Access complexity:
MEDIUM
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
COMPLETE
CVSSv2 Vector:
AV:N/AC:M/Au:N/C:N/I:N/A:C
CVSSv3 Score:
5.5
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE:
125 (Out-of-bounds Read)
References:
https://patchwork.kernel.org/patch/10503415/ (MISC)
https://bugzilla.kernel.org/show_bug.cgi?id=199837 (MISC)
104917 (BID)
[debian-lts-announce] 20190315 [SECURITY] [DLA 1715-1] linux-4.9 security update (MLIST)
USN-3932-2 (UBUNTU)
USN-3932-1 (UBUNTU)
USN-4094-1 (UBUNTU)
USN-4118-1 (UBUNTU)
[debian-lts-announce] 20200609 [SECURITY] [DLA 2241-1] linux security update (MLIST)
[debian-lts-announce] 20200610 [SECURITY] [DLA 2241-2] linux security update (MLIST)
CVE: CVE-2018-14611
CVE: CVE-2018-14611
Id:
CVE-2018-14611
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-14611
Comment
: An issue was discovered in the Linux kernel through 4.17.10. There is a use-after-free in try_merge_free_space() when mounting a crafted btrfs image, because of a lack of chunk type flag checks in btrfs_check_chunk_valid in fs/btrfs/volumes.c.
CVSSv2 Score:
7.1
Access vector:
NETWORK
Access complexity:
MEDIUM
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
COMPLETE
CVSSv2 Vector:
AV:N/AC:M/Au:N/C:N/I:N/A:C
CVSSv3 Score:
5.5
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE:
416 (Use After Free)
References:
https://patchwork.kernel.org/patch/10503099/ (MISC)
https://bugzilla.kernel.org/show_bug.cgi?id=199839 (MISC)
104917 (BID)
[debian-lts-announce] 20190315 [SECURITY] [DLA 1715-1] linux-4.9 security update (MLIST)
USN-3932-2 (UBUNTU)
USN-3932-1 (UBUNTU)
USN-4094-1 (UBUNTU)
USN-4118-1 (UBUNTU)
[debian-lts-announce] 20200609 [SECURITY] [DLA 2241-1] linux security update (MLIST)
[debian-lts-announce] 20200610 [SECURITY] [DLA 2241-2] linux security update (MLIST)
CVE: CVE-2018-18021
CVE: CVE-2018-18021
Id:
CVE-2018-18021
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18021
Comment
: arch/arm64/kvm/guest.c in KVM in the Linux kernel before 4.18.12 on the arm64 platform mishandles the KVM_SET_ON_REG ioctl. This is exploitable by attackers who can create virtual machines. An attacker can arbitrarily redirect the hypervisor flow of control (with full register control). An attacker can also cause a denial of service (hypervisor panic) via an illegal exception return. This occurs because of insufficient restrictions on userspace access to the core register file, and because PSTATE.M validation does not prevent unintended execution modes.
CVSSv2 Score:
3.6
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
PARTIAL
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:N/I:P/A:P
CVSSv3 Score:
7.1
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CWE:
20 (Improper Input Validation)
References:
https://www.openwall.com/lists/oss-security/2018/10/02/2 (MISC)
https://github.com/torvalds/linux/commit/d26c25a9d19b5976b319af528886f89cf455692d (MISC)
https://github.com/torvalds/linux/commit/2a3f93459d689d990b3ecfbe782fec89b97d3279 (MISC)
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.12 (MISC)
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d26c25a9d19b5976b319af528886f89cf455692d (MISC)
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2a3f93459d689d990b3ecfbe782fec89b97d3279 (MISC)
DSA-4313 (DEBIAN)
105550 (BID)
USN-3821-2 (UBUNTU)
USN-3821-1 (UBUNTU)
RHSA-2018:3656 (REDHAT)
USN-3931-2 (UBUNTU)
USN-3931-1 (UBUNTU)
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