Vulnerability Database

289,697

Total vulnerabilities in the database

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: Apr 28, 2020
  • Updated: Apr 14, 2023
  • CVE: CVE-2020-7451
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 5.3
  • AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS v2:

  • Severity: Medium
  • Score: 5
  • AV:N/AC:L/Au:N/C:P/I:N/A:N

CWEs:

Software From Fixed in
freebsd / freebsd 11.3 11.3.x
freebsd / freebsd 11.3-p1 11.3-p1.x
freebsd / freebsd 11.3-p3 11.3-p3.x
freebsd / freebsd 11.3-p2 11.3-p2.x
freebsd / freebsd 12.1-p1 12.1-p1.x
freebsd / freebsd 12.1 12.1.x
freebsd / freebsd 11.3-p4 11.3-p4.x
freebsd / freebsd 11.3-p5 11.3-p5.x
freebsd / freebsd 11.3-p6 11.3-p6.x
freebsd / freebsd 12.1-p2 12.1-p2.x