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OVAL Definitions
>
OVAL Definition Details
Id
oval:com.altx-soft.nix:def:135289
[Rus]
Version
2
Class
patch
ALTXid
330577
Language
English
Severity
Medium
Title
USN-4427-1 -- Linux kernel vulnerabilities
Description
It was discovered that the Kvaser CAN/USB driver in the Linux kernel didnot properly initialize memory in certain situations.
A local attackercould possibly use this to expose sensitive information (kernel memory).(CVE-2019-19947)
Family
unix
Platform
Linux Mint 17.x
Linux Mint 18.x
Ubuntu 14.04
Ubuntu 16.04
Product
linux
linux-aws
linux-kvm
linux-lts-xenial
linux-raspi2
linux-snapdragon
Reference
VENDOR: USN-4427-1
VENDOR: USN-4427-1
Id:
USN-4427-1
Reference:
https://ubuntu.com/security/notices/USN-4427-1
CVE: CVE-2019-19947
CVE: CVE-2019-19947
Id:
CVE-2019-19947
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19947
Comment
: In the Linux kernel through 5.4.6, there are information leaks of uninitialized memory to a USB device in the drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c driver, aka CID-da2311a6385c.
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:
4.6
Attack vector:
PHYSICAL
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
NONE
Availability impact:
NONE
CVSSv3 Vector:
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE:
908 ()
References:
https://github.com/torvalds/linux/commit/da2311a6385c3b499da2ed5d9be59ce331fa93e9 (MISC)
[oss-security] 20191224 CVE-2019-19947: Linux kernel can: kvaser_usb: kvaser_usb_leaf: some info-leaks vulnerabilities (MLIST)
[debian-lts-announce] 20200118 [SECURITY] [DLA 2068-1] linux security update (MLIST)
https://security.netapp.com/advisory/ntap-20200204-0002/ (CONFIRM)
USN-4285-1 (UBUNTU)
[debian-lts-announce] 20200302 [SECURITY] [DLA 2114-1] linux-4.9 security update (MLIST)
USN-4284-1 (UBUNTU)
USN-4427-1 (UBUNTU)
USN-4485-1 (UBUNTU)
CVE: CVE-2019-20810
CVE: CVE-2019-20810
Id:
CVE-2019-20810
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20810
Comment
: go7007_snd_init in drivers/media/usb/go7007/snd-go7007.c in the Linux kernel before 5.6 does not call snd_card_free for a failure path, which causes a memory leak, aka CID-9453264ef586.
CVSSv2 Score:
4.9
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
COMPLETE
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:N/I:N/A:C
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:
401 (Improper Release of Memory Before Removing Last Reference ('Memory Leak'))
References:
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6 (MISC)
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9453264ef58638ce8976121ac44c07a3ef375983 (MISC)
openSUSE-SU-2020:0935 (SUSE)
USN-4427-1 (UBUNTU)
USN-4439-1 (UBUNTU)
USN-4440-1 (UBUNTU)
openSUSE-SU-2020:1153 (SUSE)
[debian-lts-announce] 20200812 [SECURITY] [DLA 2323-1] linux-4.19 new package (MLIST)
USN-4483-1 (UBUNTU)
USN-4485-1 (UBUNTU)
CVE: CVE-2019-20908
CVE: CVE-2019-20908
Id:
CVE-2019-20908
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20908
Comment
: An issue was discovered in drivers/firmware/efi/efi.c in the Linux kernel before 5.4. Incorrect access permissions for the efivar_ssdt ACPI variable could be used by attackers to bypass lockdown or secure boot restrictions, aka CID-1957a85b0032.
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:
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
References:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1957a85b0032a81e6482ca4aab883643b8dae06e (MISC)
https://git.zx2c4.com/american-unsigned-language/tree/american-unsigned-language.sh (MISC)
https://mailarchives.bentasker.co.uk/Mirrors/OSSSec/2020/06-Jun/msg00035.html (MISC)
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4 (MISC)
[oss-security] 20200720 Re: Re: lockdown bypass on ubuntu 18.04's 4.15 kernel for loading unsigned modules (MLIST)
USN-4427-1 (UBUNTU)
[oss-security] 20200729 multiple secure boot grub2 and linux kernel vulnerabilities (MLIST)
[oss-security] 20200730 UEFI SecureBoot bypass fixes rolled out to kernels below radar (MLIST)
[oss-security] 20200730 Re: UEFI SecureBoot bypass fixes rolled out to kernels below radar (MLIST)
USN-4439-1 (UBUNTU)
USN-4426-1 (UBUNTU)
USN-4440-1 (UBUNTU)
openSUSE-SU-2020:1153 (SUSE)
CVE: CVE-2020-10732
CVE: CVE-2020-10732
Id:
CVE-2020-10732
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10732
Comment
: A flaw was found in the Linux kernel's implementation of Userspace core dumps. This flaw allows an attacker with a local account to crash a trivial program and exfiltrate private kernel data.
CVSSv2 Score:
3.6
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
PARTIAL
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:P/I:N/A:P
CVSSv3 Score:
4.4
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
LOW
Integrity impact:
NONE
Availability impact:
LOW
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
CWE:
908 ()
References:
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10732 (CONFIRM)
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=aca969cacf07f41070d788ce2b8ca71f09d5207d (MISC)
https://github.com/google/kmsan/issues/76 (MISC)
https://github.com/ruscur/linux/commit/a95cdec9fa0c08e6eeb410d461c03af8fd1fef0a (MISC)
https://twitter.com/grsecurity/status/1252558055629299712 (MISC)
openSUSE-SU-2020:0801 (SUSE)
openSUSE-SU-2020:0935 (SUSE)
USN-4411-1 (UBUNTU)
USN-4427-1 (UBUNTU)
USN-4439-1 (UBUNTU)
USN-4440-1 (UBUNTU)
USN-4485-1 (UBUNTU)
https://security.netapp.com/advisory/ntap-20210129-0005/ (CONFIRM)
https://lore.kernel.org/lkml/CAG_fn=VZZ7yUxtOGzuTLkr7wmfXWtKK9BHHYawj=rt9XWnCYvg%40mail.gmail.com/ (MISC)
CVE: CVE-2020-10766
CVE: CVE-2020-10766
Id:
CVE-2020-10766
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10766
Comment
: A logic bug flaw was found in Linux kernel before 5.8-rc1 in the implementation of SSBD. A bug in the logic handling allows an attacker with a local account to disable SSBD protection during a context switch when additional speculative execution mitigations are in place. This issue was introduced when the per task/process conditional STIPB switching was added on top of the existing SSBD switching. The highest threat from this vulnerability is to confidentiality.
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:
5.5
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
NONE
Availability impact:
NONE
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
References:
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10766 (CONFIRM)
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=dbbe2ad02e9df26e372f38cc3e70dab9222c832e (MISC)
CVE: CVE-2020-10767
CVE: CVE-2020-10767
Id:
CVE-2020-10767
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10767
Comment
: A flaw was found in the Linux kernel before 5.8-rc1 in the implementation of the Enhanced IBPB (Indirect Branch Prediction Barrier). The IBPB mitigation will be disabled when STIBP is not available or when the Enhanced Indirect Branch Restricted Speculation (IBRS) is available. This flaw allows a local attacker to perform a Spectre V2 style attack when this configuration is active. The highest threat from this vulnerability is to confidentiality.
CVSSv2 Score:
1.9
Access vector:
LOCAL
Access complexity:
MEDIUM
Authentication:
NONE
Confidentiality impact:
PARTIAL
Integrity impact:
NONE
Availability impact:
NONE
CVSSv2 Vector:
AV:L/AC:M/Au:N/C:P/I:N/A:N
CVSSv3 Score:
5.5
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
NONE
Availability impact:
NONE
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
References:
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10767 (CONFIRM)
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=21998a351512eba4ed5969006f0c55882d995ada (MISC)
CVE: CVE-2020-10768
CVE: CVE-2020-10768
Id:
CVE-2020-10768
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10768
Comment
: A flaw was found in the Linux Kernel before 5.8-rc1 in the prctl() function, where it can be used to enable indirect branch speculation after it has been disabled. This call incorrectly reports it as being 'force disabled' when it is not and opens the system to Spectre v2 attacks. The highest threat from this vulnerability is to confidentiality.
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:
5.5
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
NONE
Availability impact:
NONE
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
References:
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10768 (CONFIRM)
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4d8df8cbb9156b0a0ab3f802b80cb5db57acc0bf (MISC)
CVE: CVE-2020-11935
CVE: CVE-2020-11935
Id:
CVE-2020-11935
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11935
Comment
: It was discovered that aufs improperly managed inode reference counts in the vfsub_dentry_open() method. A local attacker could use this vulnerability to cause a denial of service attack.
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:
CWE-Other ()
References:
Launchpad Bug 1873074 (UBUNTU)
Ubuntu Security CVE-2020-11935 (UBUNTU)
CVE: CVE-2020-13974
CVE: CVE-2020-13974
Id:
CVE-2020-13974
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13974
Comment
: An issue was discovered in the Linux kernel 4.4 through 5.7.1. drivers/tty/vt/keyboard.c has an integer overflow if k_ascii is called several times in a row, aka CID-b86dab054059. NOTE: Members in the community argue that the integer overflow does not lead to a security issue in this case.
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:
190 (Integer Overflow or Wraparound)
References:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b86dab054059b970111b5516ae548efaae5b3aae (MISC)
https://lkml.org/lkml/2020/3/22/482 (MISC)
openSUSE-SU-2020:0935 (SUSE)
USN-4427-1 (UBUNTU)
USN-4439-1 (UBUNTU)
USN-4440-1 (UBUNTU)
openSUSE-SU-2020:1153 (SUSE)
[debian-lts-announce] 20200812 [SECURITY] [DLA 2323-1] linux-4.19 new package (MLIST)
USN-4483-1 (UBUNTU)
USN-4485-1 (UBUNTU)
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=dad0bf9ce93fa40b667eccd3306783f4db4b932b (MISC)
N/A (N/A)
CVE: CVE-2019-12380
CVE: CVE-2019-12380
Id:
CVE-2019-12380
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12380
Comment
: **DISPUTED** An issue was discovered in the efi subsystem in the Linux kernel through 5.1.5. phys_efi_set_virtual_address_map in arch/x86/platform/efi/efi.c and efi_call_phys_prolog in arch/x86/platform/efi/efi_64.c mishandle memory allocation failures. NOTE: This id is disputed as not being an issue because “All the code touched by the referenced commit runs only at boot, before any user processes are started. Therefore, there is no possibility for an unprivileged user to control it.”.
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:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE:
388 (Error Handling)
References:
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=4e78921ba4dd0aca1cc89168f45039add4183f8e (MISC)
108477 (BID)
openSUSE-SU-2019:1570 (SUSE)
openSUSE-SU-2019:1571 (SUSE)
openSUSE-SU-2019:1579 (SUSE)
https://security.netapp.com/advisory/ntap-20190710-0002/ (CONFIRM)
USN-4427-1 (UBUNTU)
USN-4414-1 (UBUNTU)
USN-4439-1 (UBUNTU)
FEDORA-2019-7ec378191e ()
FEDORA-2019-f40bd7826f ()
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