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amazonAmazonALAS2-2020-1385
HistoryJan 14, 2020 - 8:05 p.m.

Low: tcpdump

2020-01-1420:05:00
alas.aws.amazon.com
7

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

5.9 Medium

AI Score

Confidence

High

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.002 Low

EPSS

Percentile

50.5%

Issue Overview:

In tcpdump 4.9.2, a stack-based buffer over-read exists in the print_prefix function of print-hncp.c via crafted packet data because of missing initialization. (CVE-2018-19519)

Affected Packages:

tcpdump

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

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

New Packages:

aarch64:  
    tcpdump-4.9.2-4.amzn2.1.aarch64  
    tcpdump-debuginfo-4.9.2-4.amzn2.1.aarch64  
  
i686:  
    tcpdump-4.9.2-4.amzn2.1.i686  
    tcpdump-debuginfo-4.9.2-4.amzn2.1.i686  
  
src:  
    tcpdump-4.9.2-4.amzn2.1.src  
  
x86_64:  
    tcpdump-4.9.2-4.amzn2.1.x86_64  
    tcpdump-debuginfo-4.9.2-4.amzn2.1.x86_64  

Additional References

Red Hat: CVE-2018-19519

Mitre: CVE-2018-19519

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

5.9 Medium

AI Score

Confidence

High

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.002 Low

EPSS

Percentile

50.5%