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OVAL Definitions
>
OVAL Definition Details
Id
oval:com.altx-soft.nix:def:147710
[Rus]
Version
2
Class
patch
ALTXid
348660
Language
English
Severity
High
Title
USN-4748-1 -- Linux kernel vulnerabilities
Description
It was discovered that the jfs file system implementation in the Linuxkernel contained an out-of-bounds read vulnerability.
A local attackercould use this to possibly cause a denial of service (system crash).(CVE-2020-27815)
Family
unix
Platform
Linux Mint 17.x
Linux Mint 18.x
Ubuntu 14.04
Ubuntu 16.04
Product
linux
Reference
VENDOR: USN-4748-1
VENDOR: USN-4748-1
Id:
USN-4748-1
Reference:
https://ubuntu.com/security/notices/USN-4748-1
CVE: CVE-2020-27815
CVE: CVE-2020-27815
Id:
CVE-2020-27815
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27815
Comment
: A flaw was found in the JFS filesystem code in the Linux Kernel which allows a local attacker with the ability to set extended attributes to panic the system, causing memory corruption or escalating privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as 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:
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:
119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)
References:
[oss-security] 20201201 CVE-2020-27815 Linux kernel: jfs: array-index-out-of-bounds in dbAdjTree (MLIST)
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c61b3e4839007668360ed8b87d7da96d2e59fc6c (MISC)
DSA-4843 (DEBIAN)
[oss-security] 20201228 Re: CVE-2020-27815 Linux kernel: jfs: array-index-out-of-bounds in dbAdjTree (MLIST)
[debian-lts-announce] 20210212 [SECURITY] [DLA 2557-1] linux-4.19 security update (MLIST)
[debian-lts-announce] 20210309 [SECURITY] [DLA 2586-1] linux security update (MLIST)
https://security.netapp.com/advisory/ntap-20210702-0004/ (CONFIRM)
https://www.openwall.com/lists/oss-security/2020/11/30/5%2C (MISC)
https://www.openwall.com/lists/oss-security/2020/12/28/1%2C (MISC)
https://bugzilla.redhat.com/show_bug.cgi?id=1897668%2C (MISC)
CVE: CVE-2020-29374
CVE: CVE-2020-29374
Id:
CVE-2020-29374
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29374
Comment
: An issue was discovered in the Linux kernel before 5.7.3, related to mm/gup.c and mm/huge_memory.c. The get_user_pages (aka gup) implementation, when used for a copy-on-write page, does not properly consider the semantics of read operations and therefore can grant unintended write access, aka CID-17839856fd58.
CVSSv2 Score:
3.3
Access vector:
LOCAL
Access complexity:
MEDIUM
Authentication:
NONE
Confidentiality impact:
PARTIAL
Integrity impact:
PARTIAL
Availability impact:
NONE
CVSSv2 Vector:
AV:L/AC:M/Au:N/C:P/I:P/A:N
CVSSv3 Score:
3.6
Attack vector:
LOCAL
Attack complexity:
HIGH
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
LOW
Integrity impact:
LOW
Availability impact:
NONE
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
CWE:
362 (Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'))
References:
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.3 (MISC)
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=17839856fd588f4ab6b789f482ed3ffd7c403e1f (MISC)
https://bugs.chromium.org/p/project-zero/issues/detail?id=2045 (MISC)
https://security.netapp.com/advisory/ntap-20210115-0002/ (CONFIRM)
http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html (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)
DSA-5096 (DEBIAN)
[debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security update (MLIST)
CVE: CVE-2020-29568
CVE: CVE-2020-29568
Id:
CVE-2020-29568
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29568
Comment
: An issue was discovered in Xen through 4.14.x. Some OSes (such as Linux, FreeBSD, and NetBSD) are processing watch events using a single thread. If the events are received faster than the thread is able to handle, they will get queued. As the queue is unbounded, a guest may be able to trigger an OOM in the backend. All systems with a FreeBSD, Linux, or NetBSD (any version) dom0 are vulnerable.
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:
6.5
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
CHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CWE:
770 (Allocation of Resources Without Limits or Throttling)
References:
https://xenbits.xenproject.org/xsa/advisory-349.html (MISC)
DSA-4843 (DEBIAN)
[debian-lts-announce] 20210212 [SECURITY] [DLA 2557-1] linux-4.19 security update (MLIST)
[debian-lts-announce] 20210309 [SECURITY] [DLA 2586-1] linux security update (MLIST)
GLSA-202107-30 (GENTOO)
CVE: CVE-2020-29660
CVE: CVE-2020-29660
Id:
CVE-2020-29660
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29660
Comment
: A locking inconsistency issue was discovered in the tty subsystem of the Linux kernel through 5.9.13. drivers/tty/tty_io.c and drivers/tty/tty_jobctrl.c may allow a read-after-free attack against TIOCGSID, aka CID-c8bcd9c5be24.
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:
4.4
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
HIGH
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
NONE
Availability impact:
NONE
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
CWE:
416 (Use After Free)
References:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c8bcd9c5be24fb9e6132e97da5a35e55a83e36b9 (MISC)
[oss-security] 20201210 2 kernel issues (MLIST)
https://security.netapp.com/advisory/ntap-20210122-0001/ (CONFIRM)
DSA-4843 (DEBIAN)
[debian-lts-announce] 20210212 [SECURITY] [DLA 2557-1] linux-4.19 security update (MLIST)
[debian-lts-announce] 20210309 [SECURITY] [DLA 2586-1] linux security update (MLIST)
http://packetstormsecurity.com/files/164950/Kernel-Live-Patch-Security-Notice-LSN-0082-1.html (MISC)
FEDORA-2020-b732958765 ()
FEDORA-2020-bc0cc81a7a ()
CVE: CVE-2020-29661
CVE: CVE-2020-29661
Id:
CVE-2020-29661
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29661
Comment
: A locking issue was discovered in the tty subsystem of the Linux kernel through 5.9.13. drivers/tty/tty_jobctrl.c allows a use-after-free attack against TIOCSPGRP, aka CID-54ffccbf053b.
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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=54ffccbf053b5b6ca4f6e45094b942fab92a25fc (MISC)
[oss-security] 20201210 2 kernel issues (MLIST)
http://packetstormsecurity.com/files/160681/Linux-TIOCSPGRP-Broken-Locking.html (MISC)
https://security.netapp.com/advisory/ntap-20210122-0001/ (CONFIRM)
DSA-4843 (DEBIAN)
[debian-lts-announce] 20210212 [SECURITY] [DLA 2557-1] linux-4.19 security update (MLIST)
[debian-lts-announce] 20210309 [SECURITY] [DLA 2586-1] linux security update (MLIST)
https://www.oracle.com/security-alerts/cpuoct2021.html (MISC)
http://packetstormsecurity.com/files/164950/Kernel-Live-Patch-Security-Notice-LSN-0082-1.html (MISC)
FEDORA-2020-b732958765 ()
FEDORA-2020-bc0cc81a7a ()
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