Lucene search
K
Database
Vendors
Products
Years
CVSS
Scanner
Agent Scanning
API Scanning
Manual Audit
Perimeter Scanner
Scanning
Projects
Email
Webhook
Plugins
Resources
Documents
Blog
Glossary
FAQ
Pricing
Contacts
About Us
Partners
Branding Guideline
ubuntucveUbuntu.comUB:CVE-2019-11479
HistoryJun 17, 2019 - 12:00 a.m.

CVE-2019-11479

2019-06-1700:00:00
ubuntu.com
ubuntu.com
26

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

0.974 High

EPSS

Percentile

99.9%

JSON

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.

Bugs

Notes

Author Note
tyhicks This issue is primarily due to the TCP spec not defining a minimum value for the Minimum Segment Size (MSS). The Linux kernel cannot safely put a restriction on the MSS because it may break valid TCP connections. This issue will be addressed by allowing a system administrator to raise the smallest acceptable MSS value but there will be no default mitigation by default.
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-54.58UNKNOWN
ubuntu18.10noarchlinux< 4.18.0-25.26UNKNOWN
ubuntu19.04noarchlinux< 5.0.0-20.21UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-154.181UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1043.45UNKNOWN
ubuntu18.10noarchlinux-aws< 4.18.0-1020.24UNKNOWN
ubuntu19.04noarchlinux-aws< 5.0.0-1010.11UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1048.52) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1087.98UNKNOWN
ubuntu16.04noarchlinux-aws-hwe< 4.15.0-1043.45~16.04.1UNKNOWN
Rows per page:
1-10 of 441

Related

debiancve 1
nessus 72
prion 1
openvas 29
cloudfoundry 2
f5 1
ibm 21
cve 1
ics 2
redhatcve 1
veracode 1
ubuntu 2
fedora 2
redhat 15
citrix 1
archlinux 4
amazon 2
centos 2
oraclelinux 10
checkpoint_security 1
fortinet 1
attackerkb 1
arista 1
myhack58 1
mscve 1
virtuozzo 2
threatpost 2
cert 1
zdt 1
mageia 3
symantec 1
paloalto 1
qualysblog 1
osv 3
debian 4
photon 3
suse 1
debiancve
debiancve
CVE-2019-11479
2019-06-19 00:15:00
nessus
nessus
Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel update (USN-4041-1)
2019-07-01 00:00:00
Sprecher Automation SPRECON-E TCP SACK PANIC (CVE-2019-11479)
2023-10-03 00:00:00
F5 Networks BIG-IP : Excess resource consumption due to low MSS values vulnerability (K35421172)
2019-09-25 00:00:00
prion
prion
Hardcoded credentials
2019-06-19 00:15:00
openvas
openvas
Ubuntu: Security Advisory (USN-4041-1)
2019-06-30 00:00:00
Ubuntu: Security Advisory (USN-4041-2)
2022-08-26 00:00:00
Fedora Update for kernel-headers FEDORA-2019-6c3d89b3d0
2019-06-19 00:00:00
cloudfoundry
cloudfoundry
USN-4041-2: Linux kernel (HWE) update | Cloud Foundry
2019-08-29 00:00:00
USN-4041-1: Linux kernel update | Cloud Foundry
2019-07-29 00:00:00
f5
f5
K35421172 : Excess resource consumption due to low MSS values vulnerability CVE-2019-11479
2019-06-19 00:00:00
ibm
ibm
Security Bulletin: IBM API Connect V5 is vulnerable to denial of service (CVE-2019-11479)
2020-11-09 20:11:12
Security Bulletin: IBM DataPower Gateway is affected by Denial of Service vulnerabilities
2021-06-08 21:47:38
Security Bulletin: IBM QRadar Network Security is affected by Linux kernel vulnerabilities (CVE-2019-11479, CVE-2019-11478, CVE-2019-11477)
2019-10-07 06:57:28
cve
cve
CVE-2019-11479
2019-06-19 00:15:00
ics
ics
BD Alaris PCU (Update A)
2021-03-15 12:00:00
Siemens Industrial Products (Update R)
2022-05-12 12:00:00
redhatcve
redhatcve
CVE-2019-11479
2019-11-12 09:00:43
veracode
veracode
Denial Of Service (DoS)
2019-06-24 00:20:43
ubuntu
ubuntu
Linux kernel update
2019-06-29 00:00:00
Linux kernel (HWE) update
2019-06-29 00:00:00
fedora
fedora
[SECURITY] Fedora 29 Update: kernel-headers-5.1.11-200.fc29
2019-06-18 21:19:41
[SECURITY] Fedora 30 Update: kernel-headers-5.1.11-300.fc30
2019-06-18 18:15:45
redhat
redhat
(RHSA-2019:1484) Important: kernel security and bug fix update
2019-06-17 19:12:10
(RHSA-2019:1485) Important: kernel security and bug fix update
2019-06-17 19:12:21
(RHSA-2019:1602) Important: kernel-alt security update
2019-06-25 16:27:31
citrix
citrix
Citrix SD-WAN Security Update
2019-09-11 04:00:00
archlinux
archlinux
[ASA-201906-12] linux-hardened: denial of service
2019-06-17 00:00:00
[ASA-201906-13] linux: denial of service
2019-06-18 00:00:00
[ASA-201906-15] linux-zen: denial of service
2019-06-18 00:00:00
amazon
amazon
Critical: kernel
2019-06-13 21:37:00
Critical: kernel
2019-06-13 22:11:00
centos
centos
bpftool, kernel, perf, python security update
2019-06-19 00:21:01
kernel, perf, python security update
2019-06-19 00:19:05
oraclelinux
oraclelinux
Unbreakable Enterprise kernel security update
2019-06-17 00:00:00
Unbreakable Enterprise kernel security update
2019-06-17 00:00:00
Unbreakable Enterprise kernel security update
2019-06-17 00:00:00
checkpoint_security
checkpoint_security
Check Point response to TCP SACK PANIC - Linux Kernel vulnerabilities - CVE-2019-11477, CVE-2019-11478 and CVE-2019-11479
2019-06-18 05:16:31
fortinet
fortinet
TCP SACK panic attack- Linux Kernel Vulnerabilities- CVE-2019-11477, CVE-2019-11478 & CVE-2019-11479
2019-11-29 00:00:00
attackerkb
attackerkb
TCP SACK PANIC
2020-02-13 00:00:00
arista
arista
Security Advisory 0041
2019-07-02 00:00:00
myhack58
myhack58
CVE-2019-11477: Linux kernel TCP SACK mechanism remote Dos early warning analysis-vulnerability warning-the black bar safety net
2019-06-19 00:00:00
mscve
mscve
Linux Kernel TCP SACK Denial of Service Vulnerability
2019-06-28 07:00:00
virtuozzo
virtuozzo
Important kernel security update: New kernel 2.6.32-042stab139.1 for Virtuozzo Containers for Linux 4.7, Server Bare Metal 5.0
2019-06-20 00:00:00
Important kernel security update: New kernel 2.6.32-042stab139.1; Virtuozzo 6.0 Update 12 Hotfix 43 (6.0.12-3743)
2019-06-20 00:00:00
threatpost
threatpost
Linux Kernel Bug Knocks PCs, IoT Gadgets and More Offline
2019-06-18 18:43:50
Microsoft Patches A Pair of Zero-Days Under Active Attack
2019-07-09 20:04:36
cert
cert
Multiple TCP Selective Acknowledgement (SACK) and Maximum Segment Size (MSS) networking vulnerabilities may cause denial-of-service conditions in Linux and FreeBSD kernels
2019-06-20 00:00:00
zdt
zdt
Linux / FreeBSD TCP-Based Denial Of Service Vulnerability
2019-06-18 00:00:00
mageia
mageia
Updated kernel packages fix security vulnerability
2019-06-21 04:07:01
Updated kernel-linus packages fix security vulnerability
2019-06-21 04:07:01
Updated kernel-tmb packages fix security vulnerability
2019-06-21 04:07:01
symantec
symantec
Linux Kernel Vulnerabilities May-June 2019
2019-09-05 08:00:00
paloalto
paloalto
Information about TCP SACK Panic Findings in PAN-OS
2019-06-27 00:00:00
qualysblog
qualysblog
July 2019 Patch Tuesday – 77 Vulns, 15 Critical, DHCP RCE, Exploited PrivEsc, SQL, Adobe Vulns
2019-07-09 18:12:39
osv
osv
linux - security update
2019-06-17 00:00:00
linux-4.9 - security update
2019-06-17 00:00:00
linux - security update
2019-06-17 00:00:00
debian
debian
[SECURITY] [DLA 1823-1] linux security update
2019-06-17 23:42:52
[SECURITY] [DLA 1824-1] linux-4.9 security update
2019-06-18 10:23:55
[SECURITY] [DSA 4465-1] linux security update
2019-06-17 18:00:31
photon
photon
Home Download Photon OS User Documentation FAQ Security Advisories Related Information Lightwave - PHSA-2019-1.0-0240
2019-06-20 00:00:00
Home Download Photon OS User Documentation FAQ Security Advisories Related Information Lightwave - PHSA-2019-2.0-0165
2019-06-20 00:00:00
Critical Photon OS Security Update - PHSA-2019-0240
2019-06-20 00:00:00
suse
suse
Security update for the Linux Kernel (important)
2019-06-18 00:00:00

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

0.974 High

EPSS

Percentile

99.9%

JSON
Related for UB:CVE-2019-11479
debiancve1nessus72prion1openvas29cloudfoundry2f51ibm21cve1ics2redhatcve1veracode1ubuntu2fedora2redhat15citrix1archlinux4amazon2centos2oraclelinux10checkpoint_security1fortinet1attackerkb1arista1myhack581mscve1virtuozzo2threatpost2cert1zdt1mageia3symantec1paloalto1qualysblog1osv3debian4photon3suse1