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CVE-2019-11477

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CVE-2019-11477

Published: Jun 18, 2019

Modified: Sep 17, 2024

PUBLISHED

CVSS v3.0

7.5

HIGH

Description

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.

VendorProductVersions

Linux

Linux kernel

affected
4.4 - < 4.4.182
affected
4.9 - < 4.9.182
affected
4.14 - < 4.14.127
affected
4.19 - < 4.19.52
affected
5.1 - < 5.1.11

Weaknesses (CWE)

CWE-190

CVSS v3.0 Details

CVSS v3.0 Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

VU#905115
third-party-advisory
x_refsource_CERT-VN
RHSA-2019:1594
vendor-advisory
x_refsource_REDHAT
RHSA-2019:1602
vendor-advisory
x_refsource_REDHAT
RHSA-2019:1699
vendor-advisory
x_refsource_REDHAT

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