vulnerability
Juniper Junos OS: 2020-10 Security Bulletin: Junos OS: NFX Series: Multiple vulnerabilities resolved in 20.2R1 release (JSA11053) (multiple CVEs)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:N/I:N/A:C) | Jul 2, 2019 | Oct 15, 2020 | Mar 27, 2026 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
Jul 2, 2019
Added
Oct 15, 2020
Modified
Mar 27, 2026
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
juniper-junos-os-upgrade-latest
References
- CVE-2019-11477
- https://attackerkb.com/topics/CVE-2019-11477
- CVE-2019-11478
- https://attackerkb.com/topics/CVE-2019-11478
- CVE-2019-11479
- https://attackerkb.com/topics/CVE-2019-11479
- CVE-2019-5599
- https://attackerkb.com/topics/CVE-2019-5599
- CWE-190
- EUVD-EUVD-2019-3150
- JUNIPER-JSA11053
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-3150
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