Attacker Value
Unknown
Integer overflow in TCP_SKB_CB(skb)->tcp_gso_segs
Integer overflow in TCP_SKB_CB(skb)->tcp_gso_segs
(Last updated February 28, 2024) ▾
MITRE ATT&CK
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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.
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CVSS V3 Severity and Metrics
Data provided by the National Vulnerability Database (NVD)
Base Score:
7.5 High
Impact Score:
3.6
Exploitability Score:
3.9
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
High
General Information
Vendors
- canonical,
- f5,
- ivanti,
- linux,
- pulsesecure,
- redhat
Products
- big-ip access policy manager,
- big-ip access policy manager 15.0.0,
- big-ip advanced firewall manager,
- big-ip advanced firewall manager 15.0.0,
- big-ip analytics,
- big-ip analytics 15.0.0,
- big-ip application acceleration manager,
- big-ip application acceleration manager 15.0.0,
- big-ip application security manager,
- big-ip application security manager 15.0.0,
- big-ip domain name system,
- big-ip domain name system 15.0.0,
- big-ip edge gateway,
- big-ip edge gateway 15.0.0,
- big-ip fraud protection service,
- big-ip fraud protection service 15.0.0,
- big-ip global traffic manager,
- big-ip global traffic manager 15.0.0,
- big-ip link controller,
- big-ip link controller 15.0.0,
- big-ip local traffic manager,
- big-ip local traffic manager 15.0.0,
- big-ip policy enforcement manager,
- big-ip policy enforcement manager 15.0.0,
- big-ip webaccelerator,
- big-ip webaccelerator 15.0.0,
- connect secure -,
- enterprise linux 5.0,
- enterprise linux 6.0,
- enterprise linux 7.0,
- enterprise linux 8.0,
- enterprise linux atomic host -,
- enterprise linux aus 6.5,
- enterprise linux aus 6.6,
- enterprise linux eus 7.4,
- enterprise linux eus 7.5,
- enterprise mrg 2.0,
- linux kernel,
- pulse policy secure -,
- pulse secure virtual application delivery controller -,
- traffix signaling delivery controller,
- ubuntu linux 12.04,
- ubuntu linux 14.04,
- ubuntu linux 16.04,
- ubuntu linux 18.04,
- ubuntu linux 18.10,
- ubuntu linux 19.04
References
Advisory
Miscellaneous
