vulnerability
Ubuntu: (Multiple Advisories) (CVE-2019-11479): Linux kernel update
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:N/I:N/A:P) | Jun 17, 2019 | Jun 29, 2019 | Aug 18, 2025 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
Jun 17, 2019
Added
Jun 29, 2019
Modified
Aug 18, 2025
Description
Jonathan Looney discovered that the Linux kernel default MSS is hard-coded to 48 bytes. This allows a remote peer to fragment TCP resend queues significantly more than if a larger MSS were enforced. A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel releases 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11, and is fixed in commits 967c05aee439e6e5d7d805e195b3a20ef5c433d6 and 5f3e2bf008c2221478101ee72f5cb4654b9fc363.
Solutions
ubuntu-upgrade-linux-image-4-15-0-1017-oracleubuntu-upgrade-linux-image-4-15-0-1036-gcpubuntu-upgrade-linux-image-4-15-0-1036-gkeubuntu-upgrade-linux-image-4-15-0-1038-kvmubuntu-upgrade-linux-image-4-15-0-1040-raspi2ubuntu-upgrade-linux-image-4-15-0-1043-awsubuntu-upgrade-linux-image-4-15-0-1045-oemubuntu-upgrade-linux-image-4-15-0-1049-azureubuntu-upgrade-linux-image-4-15-0-1057-snapdragonubuntu-upgrade-linux-image-4-15-0-54-genericubuntu-upgrade-linux-image-4-15-0-54-generic-lpaeubuntu-upgrade-linux-image-4-15-0-54-lowlatencyubuntu-upgrade-linux-image-4-18-0-1015-gcpubuntu-upgrade-linux-image-4-18-0-1016-kvmubuntu-upgrade-linux-image-4-18-0-1018-raspi2ubuntu-upgrade-linux-image-4-18-0-1020-awsubuntu-upgrade-linux-image-4-18-0-1023-azureubuntu-upgrade-linux-image-4-18-0-25-genericubuntu-upgrade-linux-image-4-18-0-25-generic-lpaeubuntu-upgrade-linux-image-4-18-0-25-lowlatencyubuntu-upgrade-linux-image-4-18-0-25-snapdragonubuntu-upgrade-linux-image-4-4-0-1048-awsubuntu-upgrade-linux-image-4-4-0-1051-kvmubuntu-upgrade-linux-image-4-4-0-1087-awsubuntu-upgrade-linux-image-4-4-0-1114-raspi2ubuntu-upgrade-linux-image-4-4-0-1118-snapdragonubuntu-upgrade-linux-image-4-4-0-154-genericubuntu-upgrade-linux-image-4-4-0-154-generic-lpaeubuntu-upgrade-linux-image-4-4-0-154-lowlatencyubuntu-upgrade-linux-image-4-4-0-154-powerpc-e500mcubuntu-upgrade-linux-image-4-4-0-154-powerpc-smpubuntu-upgrade-linux-image-4-4-0-154-powerpc64-embubuntu-upgrade-linux-image-4-4-0-154-powerpc64-smpubuntu-upgrade-linux-image-5-0-0-1010-awsubuntu-upgrade-linux-image-5-0-0-1010-azureubuntu-upgrade-linux-image-5-0-0-1010-gcpubuntu-upgrade-linux-image-5-0-0-1010-kvmubuntu-upgrade-linux-image-5-0-0-1012-raspi2ubuntu-upgrade-linux-image-5-0-0-1016-snapdragonubuntu-upgrade-linux-image-5-0-0-20-genericubuntu-upgrade-linux-image-5-0-0-20-generic-lpaeubuntu-upgrade-linux-image-5-0-0-20-lowlatencyubuntu-upgrade-linux-image-awsubuntu-upgrade-linux-image-aws-hweubuntu-upgrade-linux-image-azureubuntu-upgrade-linux-image-gcpubuntu-upgrade-linux-image-genericubuntu-upgrade-linux-image-generic-hwe-16-04ubuntu-upgrade-linux-image-generic-hwe-18-04ubuntu-upgrade-linux-image-generic-lpaeubuntu-upgrade-linux-image-generic-lpae-hwe-16-04ubuntu-upgrade-linux-image-generic-lpae-hwe-18-04ubuntu-upgrade-linux-image-generic-lpae-lts-xenialubuntu-upgrade-linux-image-generic-lts-xenialubuntu-upgrade-linux-image-gkeubuntu-upgrade-linux-image-gke-4-15ubuntu-upgrade-linux-image-kvmubuntu-upgrade-linux-image-lowlatencyubuntu-upgrade-linux-image-lowlatency-hwe-16-04ubuntu-upgrade-linux-image-lowlatency-hwe-18-04ubuntu-upgrade-linux-image-lowlatency-lts-xenialubuntu-upgrade-linux-image-oemubuntu-upgrade-linux-image-oracleubuntu-upgrade-linux-image-powerpc-e500mcubuntu-upgrade-linux-image-powerpc-e500mc-lts-xenialubuntu-upgrade-linux-image-powerpc-smpubuntu-upgrade-linux-image-powerpc-smp-lts-xenialubuntu-upgrade-linux-image-powerpc64-embubuntu-upgrade-linux-image-powerpc64-emb-lts-xenialubuntu-upgrade-linux-image-powerpc64-smpubuntu-upgrade-linux-image-powerpc64-smp-lts-xenialubuntu-upgrade-linux-image-raspi2ubuntu-upgrade-linux-image-snapdragonubuntu-upgrade-linux-image-snapdragon-hwe-18-04ubuntu-upgrade-linux-image-virtualubuntu-upgrade-linux-image-virtual-hwe-16-04ubuntu-upgrade-linux-image-virtual-hwe-18-04ubuntu-upgrade-linux-image-virtual-lts-xenial
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