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OVAL Definitions
>
OVAL Definition Details
Id
oval:com.altx-soft.nix:def:19440
[Rus]
Version
7
Class
patch
ALTXid
175213
Language
English
Severity
High
Title
RHSA-2018:1318 -- kernel security, bug fix, and enhancement update
Description
Kernel: KVM: error in exception handling leads to wrong debug stack value (CVE-2018-1087)
Kernel: error in exception handling leads to DoS (CVE-2018-8897)
Kernel: ipsec: xfrm: use-after-free leading to potential privilege escalation (CVE-2017-16939)
kernel: Out-of-bounds write via userland offsets in ebt_entry struct in netfilter/ebtables.c (CVE-2018-1068)
kernel: ptrace() incorrect error handling leads to corruption and DoS (CVE-2018-1000199)
kernel: guest kernel crash during core dump on POWER9 host (CVE-2018-1091)
Family
unix
Platform
CentOS Linux 7
Red Hat Enterprise Linux 7
Product
kernel
Reference
CESA-2018:1318: CESA-2018:1318
CESA-2018:1318: CESA-2018:1318
Id:
CESA-2018:1318
Reference:
http://lists.centos.org/pipermail/centos-announce/2018-May/022909.html
VENDOR: RHSA-2018:1318
VENDOR: RHSA-2018:1318
Id:
RHSA-2018:1318
Reference:
https://access.redhat.com/errata/RHSA-2018:1318
CVE: CVE-2017-16939
CVE: CVE-2017-16939
Id:
CVE-2017-16939
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-16939
Comment
: The XFRM dump policy implementation in net/xfrm/xfrm_user.c in the Linux kernel before 4.13.11 allows local users to gain privileges or cause a denial of service (use-after-free) via a crafted SO_RCVBUF setsockopt system call in conjunction with XFRM_MSG_GETPOLICY Netlink messages.
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://github.com/torvalds/linux/commit/1137b5e2529a8f5ca8ee709288ecba3e68044df2 (MISC)
https://bugzilla.suse.com/show_bug.cgi?id=1069702 (MISC)
https://blogs.securiteam.com/index.php/archives/3535 (MISC)
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.11 (MISC)
http://seclists.org/fulldisclosure/2017/Nov/40 (MISC)
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1137b5e2529a8f5ca8ee709288ecba3e68044df2 (MISC)
101954 (BID)
SUSE-SU-2018:0011 (SUSE)
DSA-4082 (DEBIAN)
[debian-lts-announce] 20171210 [SECURITY] [DLA 1200-1] linux security update (MLIST)
RHSA-2018:1355 (REDHAT)
RHSA-2018:1318 (REDHAT)
RHSA-2019:1170 (REDHAT)
RHSA-2019:1190 (REDHAT)
CVE: CVE-2018-1068
CVE: CVE-2018-1068
Id:
CVE-2018-1068
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1068
Comment
: A flaw was found in the Linux 4.x kernel's implementation of 32-bit syscall interface for bridging. This allowed a privileged user to arbitrarily write to a limited range of kernel memory.
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:
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://github.com/torvalds/linux/commit/b71812168571fa55e44cdd0254471331b9c4c4c6 (CONFIRM)
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b71812168571fa55e44cdd0254471331b9c4c4c6 (CONFIRM)
https://bugzilla.redhat.com/show_bug.cgi?id=1552048 (CONFIRM)
[linux-netdev] 20180305 [PATCH net] netfilter: check for out-of-bounds while copying compat entries (MLIST)
[linux-netdev] 20180305 BUG: unable to handle kernel paging request in compat_copy_entries (MLIST)
103459 (BID)
DSA-4188 (DEBIAN)
DSA-4187 (DEBIAN)
[debian-lts-announce] 20180502 [SECURITY] [DLA 1369-1] linux security update (MLIST)
RHSA-2018:1355 (REDHAT)
RHSA-2018:1318 (REDHAT)
USN-3654-2 (UBUNTU)
USN-3654-1 (UBUNTU)
USN-3656-1 (UBUNTU)
USN-3677-2 (UBUNTU)
USN-3677-1 (UBUNTU)
USN-3674-2 (UBUNTU)
USN-3674-1 (UBUNTU)
RHSA-2018:2948 (REDHAT)
RHSA-2019:1170 (REDHAT)
RHSA-2019:1190 (REDHAT)
RHSA-2019:4159 (REDHAT)
CVE: CVE-2018-1087
CVE: CVE-2018-1087
Id:
CVE-2018-1087
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1087
Comment
: kernel KVM before versions kernel 4.16, kernel 4.16-rc7, kernel 4.17-rc1, kernel 4.17-rc2 and kernel 4.17-rc3 is vulnerable to a flaw in the way the Linux kernel's KVM hypervisor handled exceptions delivered after a stack switch operation via Mov SS or Pop SS instructions. During the stack switch operation, the processor did not deliver interrupts and exceptions, rather they are delivered once the first instruction after the stack switch is executed. An unprivileged KVM guest user could use this flaw to crash the guest or, potentially, escalate their privileges in the guest.
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
References:
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1087 (CONFIRM)
https://access.redhat.com/security/vulnerabilities/pop_ss (MISC)
http://www.openwall.com/lists/oss-security/2018/05/08/5 (MISC)
DSA-4196 (DEBIAN)
USN-3641-2 (UBUNTU)
RHSA-2018:1524 (REDHAT)
RHSA-2018:1355 (REDHAT)
RHSA-2018:1348 (REDHAT)
RHSA-2018:1347 (REDHAT)
RHSA-2018:1345 (REDHAT)
RHSA-2018:1318 (REDHAT)
1040862 (SECTRACK)
104127 (BID)
USN-3641-1 (UBUNTU)
CVE: CVE-2018-1091
CVE: CVE-2018-1091
Id:
CVE-2018-1091
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1091
Comment
: In the flush_tmregs_to_thread function in arch/powerpc/kernel/ptrace.c in the Linux kernel before 4.13.5, a guest kernel crash can be triggered from unprivileged userspace during a core dump on a POWER host due to a missing processor feature check and an erroneous use of transactional memory (TM) instructions in the core dump path, leading to a denial of service.
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:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE:
119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)
References:
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5 (CONFIRM)
https://github.com/torvalds/linux/commit/c1fa0768a8713b135848f78fd43ffc208d8ded70 (CONFIRM)
https://bugzilla.redhat.com/show_bug.cgi?id=1558149 (CONFIRM)
https://access.redhat.com/security/cve/cve-2018-1091 (CONFIRM)
http://openwall.com/lists/oss-security/2018/03/27/4 (CONFIRM)
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c1fa0768a8713b135848f78fd43ffc208d8ded70 (CONFIRM)
https://marc.info/?l=linuxppc-embedded&m=150535531910494&w=2 (CONFIRM)
RHSA-2018:1318 (REDHAT)
CVE: CVE-2018-8897
CVE: CVE-2018-8897
Id:
CVE-2018-8897
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-8897
Comment
: A statement in the System Programming Guide of the Intel 64 and IA-32 Architectures Software Developer's Manual (SDM) was mishandled in the development of some or all operating-system kernels, resulting in unexpected behavior for #DB exceptions that are deferred by MOV SS or POP SS, as demonstrated by (for example) privilege escalation in Windows, macOS, some Xen configurations, or FreeBSD, or a Linux kernel crash. The MOV to SS and POP SS instructions inhibit interrupts (including NMIs), data breakpoints, and single step trap exceptions until the instruction boundary following the next instruction (SDM Vol. 3A; section 6.8.3). (The inhibited data breakpoints are those on memory accessed by the MOV to SS or POP to SS instruction itself.) Note that debug exceptions are not inhibited by the interrupt enable (EFLAGS.IF) system flag (SDM Vol. 3A; section 2.3). If the instruction following the MOV to SS or POP to SS instruction is an instruction like SYSCALL, SYSENTER, INT 3, etc. that transfers control to the operating system at CPL < 3, the debug exception is delivered after the transfer to CPL < 3 is complete. OS kernels may not expect this order of events and may therefore experience unexpected behavior when it occurs.
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:3.0/AV:L/AC:L/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:
https://xenbits.xen.org/xsa/advisory-260.html (MISC)
https://www.freebsd.org/security/advisories/FreeBSD-SA-18:06.debugreg.asc (MISC)
https://github.com/torvalds/linux/commit/d8ba61ba58c88d5207c1ba2f7d9a2280e7d03be9 (MISC)
https://bugzilla.redhat.com/show_bug.cgi?id=1567074 (MISC)
http://openwall.com/lists/oss-security/2018/05/08/1 (MISC)
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d8ba61ba58c88d5207c1ba2f7d9a2280e7d03be9 (MISC)
https://svnweb.freebsd.org/base?view=revision&revision=333368 (MISC)
https://support.apple.com/HT208742 (MISC)
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8897 (CONFIRM)
http://openwall.com/lists/oss-security/2018/05/08/4 (MISC)
https://www.triplefault.io/2018/05/spurious-db-exceptions-with-pop-ss.html (MISC)
https://www.synology.com/support/security/Synology_SA_18_21 (CONFIRM)
USN-3641-2 (UBUNTU)
https://support.citrix.com/article/CTX234679 (CONFIRM)
https://patchwork.kernel.org/patch/10386677/ (MISC)
RHSA-2018:1355 (REDHAT)
RHSA-2018:1354 (REDHAT)
RHSA-2018:1353 (REDHAT)
RHSA-2018:1352 (REDHAT)
RHSA-2018:1351 (REDHAT)
RHSA-2018:1350 (REDHAT)
RHSA-2018:1349 (REDHAT)
RHSA-2018:1348 (REDHAT)
RHSA-2018:1347 (REDHAT)
RHSA-2018:1346 (REDHAT)
RHSA-2018:1345 (REDHAT)
RHSA-2018:1319 (REDHAT)
RHSA-2018:1318 (REDHAT)
1040849 (SECTRACK)
104071 (BID)
DSA-4196 (DEBIAN)
1040882 (SECTRACK)
1040866 (SECTRACK)
1040861 (SECTRACK)
1040744 (SECTRACK)
RHSA-2018:1524 (REDHAT)
DSA-4201 (DEBIAN)
https://github.com/can1357/CVE-2018-8897/ (MISC)
44697 (EXPLOIT-DB)
[debian-lts-announce] 20180525 [SECURITY] [DLA 1383-1] xen security update (MLIST)
USN-3641-1 (UBUNTU)
[debian-lts-announce] 20180601 [SECURITY] [DLA 1392-1] linux security update (MLIST)
45024 (EXPLOIT-DB)
https://security.netapp.com/advisory/ntap-20180927-0002/ (CONFIRM)
[debian-lts-announce] 20181112 [SECURITY] [DLA 1577-1] xen security update (MLIST)
https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0 (CONFIRM)
VU#631579 (CERT-VN)
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20190921-01-debug-en (CONFIRM)
CVE: CVE-2018-1000199
CVE: CVE-2018-1000199
Id:
CVE-2018-1000199
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1000199
Comment
: The Linux Kernel version 3.18 contains a dangerous feature vulnerability in modify_user_hw_breakpoint() that can result in crash and possibly memory corruption. This attack appear to be exploitable via local code execution and the ability to use ptrace. This vulnerability appears to have been fixed in git commit f67b15037a7a50c57f72e69a6d59941ad90a0f0f.
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
CWE:
388 (Error Handling)
References:
1040806 (SECTRACK)
RHSA-2018:1318 (REDHAT)
RHSA-2018:1345 (REDHAT)
RHSA-2018:1347 (REDHAT)
RHSA-2018:1348 (REDHAT)
RHSA-2018:1354 (REDHAT)
RHSA-2018:1355 (REDHAT)
RHSA-2018:1374 (REDHAT)
[debian-lts-announce] 20180502 [SECURITY] [DLA 1369-1] linux security update (MLIST)
[linux-kernel] 20180406 [PATCH 3.18 40/93] perf/hwbp: Simplify the perf-hwbp code, fix documentation (MLIST)
USN-3641-1 (UBUNTU)
USN-3641-2 (UBUNTU)
DSA-4187 (DEBIAN)
DSA-4188 (DEBIAN)
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