Huawei EulerOS: Security Advisory for kernel (EulerOS-SA-2019-1487)

Published: 2020-01-23 11:54:17
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:M/Au:N/C:C/I:C/A:C

Summary:
The remote host is missing an update for the Huawei EulerOS 'kernel' Linux Distribution Package(s) announced via the EulerOS-SA-2019-1487 advisory.

Detection Method:
Checks if a vulnerable Linux Distribution Package version is present on the target host.

Technical Details:
It was found that the Linux kernel's implementation of vectored pipe read and write functionality did not take into account the I/O vectors that were already processed when retrying after a failed atomic access operation, potentially resulting in memory corruption due to an I/O vector array overrun. A local, unprivileged user could use this flaw to crash the system or, potentially, escalate their privileges on the system.(CVE-2015-1805) net/llc/sysctl_net_llc.c in the Linux kernel before 3.19 uses an incorrect data type in a sysctl table, which allows local users to obtain potentially sensitive information from kernel memory or possibly have unspecified other impact by accessing a sysctl entry.(CVE-2015-2041) net/rds/sysctl.c in the Linux kernel before 3.19 uses an incorrect data type in a sysctl table, which allows local users to obtain potentially sensitive information from kernel memory or possibly have unspecified other impact by accessing a sysctl entry.(CVE-2015-2042) Xen 3.3.x through 4.5.x and the Linux kernel through 3.19.1 do not properly restrict access to PCI command registers, which might allow local guest OS users to cause a denial of service (non-maskable interrupt and host crash) by disabling the (1) memory or (2) I/O decoding for a PCI Express device and then accessing the device, which triggers an Unsupported Request (UR) response.(CVE-2015-2150) A stack-based buffer overflow flaw was found in the Linux kernel's early load microcode functionality. On a system with UEFI Secure Boot enabled, a local, privileged user could use this flaw to increase their privileges to the kernel (ring0) level, bypassing intended restrictions in place.(CVE-2015-2666) The xsave/xrstor implementation in arch/x86/include/asm/xsave.h in the Linux kernel before 3.19.2 creates certain .altinstr_replacement pointers and consequently does not provide any protection against instruction faulting, which allows local users to cause a denial of service (panic) by triggering a fault, as demonstrated by an unaligned memory operand or a non-canonical address memory operand.(CVE-2015-2672) A flaw was found in the way the Linux kernel's 32-bit emulation implementation handled forking or closing of a task with an 'int80' entry. A local user could potentially use this flaw to escalate their privileges on the system.(CVE-2015-2830) It was found that the Linux kernel's TCP/IP protocol suite implementation for IPv6 allowed the Hop Limit value to be set to a smaller value than the default one. An attacker on a local network could use this flaw to prevent systems on that network from sending or r ... Description truncated. Please see the references for more information.

Affected Versions:
'kernel' Linux Distribution Package(s) on Huawei EulerOS Virtualization 3.0.1.0.

Recommendations:
Please install the updated Linux Distribution Package(s).

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2015-1805
https://nvd.nist.gov/vuln/detail/CVE-2015-2041
https://nvd.nist.gov/vuln/detail/CVE-2015-2042
https://nvd.nist.gov/vuln/detail/CVE-2015-2150
https://nvd.nist.gov/vuln/detail/CVE-2015-2666
https://nvd.nist.gov/vuln/detail/CVE-2015-2672
https://nvd.nist.gov/vuln/detail/CVE-2015-2830
https://nvd.nist.gov/vuln/detail/CVE-2015-2922
https://nvd.nist.gov/vuln/detail/CVE-2015-2925
https://nvd.nist.gov/vuln/detail/CVE-2015-3212
https://nvd.nist.gov/vuln/detail/CVE-2015-3288
https://nvd.nist.gov/vuln/detail/CVE-2015-3290
https://nvd.nist.gov/vuln/detail/CVE-2015-3291
https://nvd.nist.gov/vuln/detail/CVE-2015-3331
https://nvd.nist.gov/vuln/detail/CVE-2015-3339
https://nvd.nist.gov/vuln/detail/CVE-2015-3636
https://nvd.nist.gov/vuln/detail/CVE-2015-4167
https://nvd.nist.gov/vuln/detail/CVE-2015-4170
https://nvd.nist.gov/vuln/detail/CVE-2015-4177
https://nvd.nist.gov/vuln/detail/CVE-2015-4692
https://nvd.nist.gov/vuln/detail/CVE-2015-4700
https://nvd.nist.gov/vuln/detail/CVE-2015-5156

References:

https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2019-1487

Severity
High
CVSS Score
9.3
Published
2020-01-23
Modified
2020-01-23
Category
Huawei EulerOS Local Security Checks

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