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amazonAmazonALAS-2020-1466
HistoryDec 16, 2020 - 8:31 p.m.

Medium: qemu-kvm

2020-12-1620:31:00
alas.aws.amazon.com
63

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

Issue Overview:

A use-after-free issue was found in the SLiRP networking implementation of the QEMU emulator. The issue occurs in ip_reass() routine while reassembling incoming packets, if the first fragment is bigger than the m->m_dat[] buffer. A user or process could use this flaw to crash the QEMU process on the host, resulting in a denial of service. (CVE-2019-15890 __)

Affected Packages:

qemu-kvm

Issue Correction:
Run yum update qemu-kvm to update your system.

New Packages:

src:  
    qemu-kvm-1.5.3-156.25.amzn1.src  
  
x86_64:  
    qemu-kvm-1.5.3-156.25.amzn1.x86_64  
    qemu-kvm-tools-1.5.3-156.25.amzn1.x86_64  
    qemu-kvm-common-1.5.3-156.25.amzn1.x86_64  
    qemu-img-1.5.3-156.25.amzn1.x86_64  
    qemu-kvm-debuginfo-1.5.3-156.25.amzn1.x86_64  

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P