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ubuntuUbuntuUSN-4600-2
HistoryOct 27, 2020 - 12:00 a.m.

Netty vulnerabilities

2020-10-2700:00:00
ubuntu.com
59

9.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

8.9 High

AI Score

Confidence

High

6.4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.012 Low

EPSS

Percentile

85.3%

Releases

  • Ubuntu 18.04 ESM

Packages

  • netty - None

Details

USN-4600-1 fixed multiple vunerabilities in Netty 3.9. This update provides
the corresponding fixes for CVE-2019-20444, CVE-2019-20445 for Netty.

Also it was discovered that Netty allow for unbounded memory allocation. A
remote attacker could send a large stream to the Netty server causing it to
crash (denial of service). (CVE-2020-11612)

Original advisory details:

It was discovered that Netty had HTTP request smuggling vulnerabilities. A
remote attacker could used it to extract sensitive information. (CVE-2019-16869,
CVE-2019-20444, CVE-2019-20445, CVE-2020-7238)

OSVersionArchitecturePackageVersionFilename
Ubuntu18.04noarchlibnetty-java< 1:4.1.7-4ubuntu0.1UNKNOWN

9.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

8.9 High

AI Score

Confidence

High

6.4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.012 Low

EPSS

Percentile

85.3%