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Related Vulnerabilities: CVE-2019-8980 CVE-2019-9213

A kernel memory leak was found in the kernel_read_file() function in the fs/exec.c file in the Linux kernel. An attacker could use this flaw to cause a memory leak and thus a denial of service (DoS). (CVE-2019-8980) A flaw was found in mmap in the Linux kernel allowing the process to map a null page. This allows attackers to abuse this mechanism to turn null pointer dereferences into workable exploits. (CVE-2019-9213)

Source

ALAS-2019-1179

Amazon Linux AMI Security Advisory: ALAS-2019-1179
Advisory Release Date: 2019-03-20 22:39 Pacific
Advisory Updated Date: 2019-03-25 23:05 Pacific

Severity: Important

References: CVE-2019-8980 CVE-2019-9213

Issue Overview:

A kernel memory leak was found in the kernel_read_file() function in the fs/exec.c file in the Linux kernel. An attacker could use this flaw to cause a memory leak and thus a denial of service (DoS). (CVE-2019-8980)

A flaw was found in mmap in the Linux kernel allowing the process to map a null page. This allows attackers to abuse this mechanism to turn null pointer dereferences into workable exploits. (CVE-2019-9213)

Affected Packages:

kernel

Issue Correction:
Run yum update kernel to update your system.

New Packages:

i686:
    kernel-debuginfo-common-i686-4.14.106-79.86.amzn1.i686
    kernel-headers-4.14.106-79.86.amzn1.i686
    kernel-tools-debuginfo-4.14.106-79.86.amzn1.i686
    kernel-4.14.106-79.86.amzn1.i686
    perf-4.14.106-79.86.amzn1.i686
    kernel-devel-4.14.106-79.86.amzn1.i686
    kernel-debuginfo-4.14.106-79.86.amzn1.i686
    kernel-tools-devel-4.14.106-79.86.amzn1.i686
    kernel-tools-4.14.106-79.86.amzn1.i686
    perf-debuginfo-4.14.106-79.86.amzn1.i686

src:
    kernel-4.14.106-79.86.amzn1.src

x86_64:
    kernel-debuginfo-4.14.106-79.86.amzn1.x86_64
    kernel-tools-4.14.106-79.86.amzn1.x86_64
    kernel-debuginfo-common-x86_64-4.14.106-79.86.amzn1.x86_64
    perf-4.14.106-79.86.amzn1.x86_64
    kernel-headers-4.14.106-79.86.amzn1.x86_64
    kernel-tools-debuginfo-4.14.106-79.86.amzn1.x86_64
    kernel-tools-devel-4.14.106-79.86.amzn1.x86_64
    perf-debuginfo-4.14.106-79.86.amzn1.x86_64
    kernel-4.14.106-79.86.amzn1.x86_64
    kernel-devel-4.14.106-79.86.amzn1.x86_64

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ALAS-2019-1179

ALAS-2019-1179

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