CVSS2
Attack Vector
NETWORK
Attack 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
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
AI Score
Confidence
High
EPSS
Percentile
99.9%
USN-4017-1 fixed vulnerabilities in the Linux kernel for Ubuntu.
Unfortunately, the update introduced a regression that interfered with
networking applications that setup very low SO_SNDBUF values. This
update fixes the problem.
We apologize for the inconvenience.
Jonathan Looney discovered that the Linux kernel could be coerced into
segmenting responses into multiple TCP segments. A remote attacker could
construct an ongoing sequence of requests to cause a denial of service.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Ubuntu | 19.04 | noarch | linux-image-5.0.0-1010-aws | < 5.0.0-1010.11 | UNKNOWN |
Ubuntu | 19.04 | noarch | linux-aws-headers-5.0.0-1010 | < 5.0.0-1010.11 | UNKNOWN |
Ubuntu | 19.04 | noarch | linux-aws-tools-5.0.0-1010 | < 5.0.0-1010.11 | UNKNOWN |
Ubuntu | 19.04 | noarch | linux-buildinfo-5.0.0-1010-aws | < 5.0.0-1010.11 | UNKNOWN |
Ubuntu | 19.04 | noarch | linux-headers-5.0.0-1010-aws | < 5.0.0-1010.11 | UNKNOWN |
Ubuntu | 19.04 | noarch | linux-image-5.0.0-1010-aws-dbgsym | < 5.0.0-1010.11 | UNKNOWN |
Ubuntu | 19.04 | noarch | linux-modules-5.0.0-1010-aws | < 5.0.0-1010.11 | UNKNOWN |
Ubuntu | 19.04 | noarch | linux-tools-5.0.0-1010-aws | < 5.0.0-1010.11 | UNKNOWN |
Ubuntu | 19.04 | noarch | linux-image-5.0.0-1010-azure | < 5.0.0-1010.10 | UNKNOWN |
Ubuntu | 19.04 | noarch | linux-image-5.0.0-1010-azure-dbgsym | < 5.0.0-1010.10 | UNKNOWN |
CVSS2
Attack Vector
NETWORK
Attack 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
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
AI Score
Confidence
High
EPSS
Percentile
99.9%