vulnerability
Red Hat: CVE-2019-11477: CVE-2019-11477 Kernel: tcp: integer overflow while processing SACK blocks allows remote denial of service (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:N/I:N/A:C) | 2019-06-17 | 2019-06-18 | 2024-11-27 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
2019-06-17
Added
2019-06-18
Modified
2024-11-27
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.
Solution(s)
redhat-upgrade-kernelredhat-upgrade-kernel-rt
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