Vulnerability Monitor

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CVE-2020-7451

In FreeBSD 12.1-STABLE before r358739, 12.1-RELEASE before 12.1-RELEASE-p3, 11.3-STABLE before r358740, and 11.3-RELEASE before 11.3-RELEASE-p7, a TCP SYN-ACK or challenge TCP-ACK segment over IPv6 that is transmitted or retransmitted does not properly initialize the Traffic Class field disclosing one byte of kernel memory over the network.

Published

2020-04-28T20:15:12.797

Last Modified

2024-11-21T05:37:10.280

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.3 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: NONE
  • Availability Impact: NONE
Exploitability Score

10.0

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-908
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System freebsd freebsd 11.3 Yes
Operating System freebsd freebsd 11.3 Yes
Operating System freebsd freebsd 11.3 Yes
Operating System freebsd freebsd 11.3 Yes
Operating System freebsd freebsd 11.3 Yes
Operating System freebsd freebsd 11.3 Yes
Operating System freebsd freebsd 11.3 Yes
Operating System freebsd freebsd 12.1 Yes
Operating System freebsd freebsd 12.1 Yes
Operating System freebsd freebsd 12.1 Yes
References