Vulnerability Database

319,897

Total vulnerabilities in the database

CVE-2022-33742

Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742).

  • Published: Jul 5, 2022
  • Updated: Nov 16, 2025
  • CVE: CVE-2022-33742
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.1
  • AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

CVSS v2:

  • Severity: Low
  • Score: 3.6
  • AV:L/AC:L/Au:N/C:P/I:N/A:P

CWEs:

Software From Fixed in
fedoraproject / fedora 35 35.x
fedoraproject / fedora 36 36.x
debian / debian_linux 10.0 10.0.x
debian / debian_linux 11.0 11.0.x
linux / linux_kernel 2.6.12-rc4 2.6.12-rc4.x
linux / linux_kernel 2.6.12-rc5 2.6.12-rc5.x
linux / linux_kernel 2.6.12-rc2 2.6.12-rc2.x
linux / linux_kernel 2.6.12-rc3 2.6.12-rc3.x
linux / linux_kernel 2.6.12-rc6 2.6.12-rc6.x
linux / linux_kernel 5.19-rc1 5.19-rc1.x
linux / linux_kernel 5.19-rc2 5.19-rc2.x
linux / linux_kernel 5.19-rc3 5.19-rc3.x
linux / linux_kernel 5.19-rc4 5.19-rc4.x
linux / linux_kernel 5.19-rc5 5.19-rc5.x
linux / linux_kernel 5.18 5.18.10
linux / linux_kernel 5.15 5.15.53
linux / linux_kernel 5.10 5.10.129
linux / linux_kernel 5.4 5.4.204
linux / linux_kernel 4.14 4.14.287
linux / linux_kernel 2.6.13 4.9.322
linux / linux_kernel 4.19 4.19.251