Attacker Value
Unknown
SACK can cause extensive memory use via fragmented resend queue
Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)User Interaction
Unknown
Privileges Required
Unknown
Attack Vector
Unknown
SACK can cause extensive memory use via fragmented resend queue
(Last updated February 28, 2024) ▾
MITRE ATT&CK
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Description
Jonathan Looney discovered that the TCP retransmission queue implementation in tcp_fragment in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment (SACK) sequences. 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 f070ef2ac66716357066b683fb0baf55f8191a2e.
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CVSS V3 Severity and Metrics
Data provided by the National Vulnerability Database (NVD)
Base Score:
None
Impact Score:
Unknown
Exploitability Score:
Unknown
Attack Vector (AV):
Unknown
Attack Complexity (AC):
Unknown
Privileges Required (PR):
Unknown
User Interaction (UI):
Unknown
Scope (S):
Unknown
Confidentiality (C):
Unknown
Integrity (I):
Unknown
Availability (A):
Unknown
General Information
Vendors
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
