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
7.8 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
Linux kernel is vulnerable to denial of service. A flaw named SegmentSmack was found in the way the Linux kernel handled specially crafted TCP packets. A remote attacker could use this flaw to trigger time and calculation expensive calls to tcp_collapse_ofo_queue()
and tcp_prune_ofo_queue()
functions by sending malicious packets within ongoing TCP sessions that could lead to a CPU saturation and consequently a denial of service on the system. Maintaining the denial of service condition requires continuous two-way TCP sessions to a reachable open port, thus the attacks cannot be performed using spoofed IP addresses.
www.arubanetworks.com/assets/alert/ARUBA-PSA-2018-004.txt
www.huawei.com/en/psirt/security-advisories/huawei-sa-20181031-02-linux-en
www.openwall.com/lists/oss-security/2019/06/28/2
www.openwall.com/lists/oss-security/2019/07/06/3
www.openwall.com/lists/oss-security/2019/07/06/4
www.securityfocus.com/bid/104976
www.securitytracker.com/id/1041424
www.securitytracker.com/id/1041434
access.redhat.com/errata/RHSA-2018:2384
access.redhat.com/errata/RHSA-2018:2395
access.redhat.com/errata/RHSA-2018:2402
access.redhat.com/errata/RHSA-2018:2403
access.redhat.com/errata/RHSA-2018:2645
access.redhat.com/errata/RHSA-2018:2776
access.redhat.com/errata/RHSA-2018:2785
access.redhat.com/errata/RHSA-2018:2789
access.redhat.com/errata/RHSA-2018:2790
access.redhat.com/errata/RHSA-2018:2791
access.redhat.com/errata/RHSA-2018:2924
access.redhat.com/errata/RHSA-2018:2933
access.redhat.com/errata/RHSA-2018:2948
access.redhat.com/security/cve/cve-2018-5390
access.redhat.com/security/updates/classification/#important
cert-portal.siemens.com/productcert/pdf/ssa-377115.pdf
git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=1a4f14bab1868b443f0dd3c55b689a478f82e72e
help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0
lists.debian.org/debian-lts-announce/2018/08/msg00014.html
security.netapp.com/advisory/ntap-20180815-0003/
support.f5.com/csp/article/K95343321
support.f5.com/csp/article/K95343321?utm_source=f5support&utm_medium=RSS
tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180824-linux-tcp
usn.ubuntu.com/3732-1/
usn.ubuntu.com/3732-2/
usn.ubuntu.com/3741-1/
usn.ubuntu.com/3741-2/
usn.ubuntu.com/3742-1/
usn.ubuntu.com/3742-2/
usn.ubuntu.com/3763-1/
www.a10networks.com/support/security-advisories/tcp-ip-cve-2018-5390-segmentsmack
www.debian.org/security/2018/dsa-4266
www.kb.cert.org/vuls/id/962459
www.oracle.com/security-alerts/cpujul2020.html
www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
www.synology.com/support/security/Synology_SA_18_41
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
7.8 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C