CanonicalCVELIST:CVE-2019-11477CVE-2019-11477 Integer overflow in TCP_SKB_CB(skb)->tcp_gso_segs
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
99.8%
Jonathan Looney discovered that the TCP_SKB_CB(skb)->tcp_gso_segs value was subject to an integer overflow in the Linux kernel when handling TCP Selective Acknowledgments (SACKs). 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 commit 3b4929f65b0d8249f19a50245cd88ed1a2f78cff.
CNA Affected
[
{
"product": "Linux kernel",
"vendor": "Linux",
"versions": [
{
"lessThan": "4.4.182",
"status": "affected",
"version": "4.4",
"versionType": "custom"
},
{
"lessThan": "4.9.182",
"status": "affected",
"version": "4.9",
"versionType": "custom"
},
{
"lessThan": "4.14.127",
"status": "affected",
"version": "4.14",
"versionType": "custom"
},
{
"lessThan": "4.19.52",
"status": "affected",
"version": "4.19",
"versionType": "custom"
},
{
"lessThan": "5.1.11",
"status": "affected",
"version": "5.1",
"versionType": "custom"
}
]
}
]References
packetstormsecurity.com/files/153346/Kernel-Live-Patch-Security-Notice-LSN-0052-1.html
packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
www.arubanetworks.com/assets/alert/ARUBA-PSA-2020-010.txt
www.huawei.com/en/psirt/security-advisories/huawei-sa-20191225-01-kernel-en
www.openwall.com/lists/oss-security/2019/06/20/3
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.openwall.com/lists/oss-security/2019/10/24/1
www.openwall.com/lists/oss-security/2019/10/29/3
www.vmware.com/security/advisories/VMSA-2019-0010.html
access.redhat.com/errata/RHSA-2019:1594
access.redhat.com/errata/RHSA-2019:1602
access.redhat.com/errata/RHSA-2019:1699
access.redhat.com/security/vulnerabilities/tcpsack
cert-portal.siemens.com/productcert/pdf/ssa-462066.pdf
git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=3b4929f65b0d8249f19a50245cd88ed1a2f78cff
github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.md
kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44193
kc.mcafee.com/corporate/index?page=content&id=SB10287
psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0006
security.netapp.com/advisory/ntap-20190625-0001/
support.f5.com/csp/article/K78234183
wiki.ubuntu.com/SecurityTeam/KnowledgeBase/SACKPanic
www.kb.cert.org/vuls/id/905115
www.oracle.com/security-alerts/cpujan2020.html
www.oracle.com/security-alerts/cpuoct2020.html
www.synology.com/security/advisory/Synology_SA_19_28
www.us-cert.gov/ics/advisories/icsa-19-253-03
Related
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
99.8%