Vulnerability Name:

CVE-2022-36123 (CCN-232397)

Assigned:2022-07-01
Published:2022-07-01
Updated:2022-09-04
Summary:The Linux kernel before 5.18.13 lacks a certain clear operation for the block starting symbol (.bss). This allows Xen PV guest OS users to cause a denial of service or gain privileges.
CVSS v3 Severity:7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
7.0 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
7.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
7.0 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:6.8 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Gain Privileges
References:Source: MITRE
Type: CNA
CVE-2022-36123

Source: CONFIRM
Type: Release Notes, Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.13

Source: XF
Type: UNKNOWN
linux-kernel-cve202236123-priv-esc(232397)

Source: CCN
Type: GitHub Web site
SICK-2022-128.md

Source: MISC
Type: Exploit, Patch, Third Party Advisory
https://github.com/sickcodes/security/blob/master/advisories/SICK-2022-128.md

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/torvalds/linux/commit/74a0032b8524ee2bd4443128c0bf9775928680b0

Source: CCN
Type: Linux Kernel GIT Repository
x86/xen: Use clear_bss() for Xen PV guests

Source: CONFIRM
Type: Patch, Third Party Advisory
https://github.com/torvalds/linux/commit/96e8fc5818686d4a1591bb6907e7fdb64ef29884

Source: CONFIRM
Type: Third Party Advisory
https://security.netapp.com/advisory/ntap-20220901-0003/

Source: MISC
Type: Exploit, Patch, Third Party Advisory
https://sick.codes/sick-2022-128

Vulnerable Configuration:Configuration 1:
  • cpe:/o:linux:linux_kernel:*:*:*:*:*:*:*:* (Version < 5.18.13)

  • Configuration 2:
  • cpe:/o:netapp:h300s_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:netapp:h300s:-:*:*:*:*:*:*:*

  • Configuration 3:
  • cpe:/o:netapp:h500s_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:netapp:h500s:-:*:*:*:*:*:*:*

  • Configuration 4:
  • cpe:/o:netapp:h700s_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:netapp:h700s:-:*:*:*:*:*:*:*

  • Configuration 5:
  • cpe:/o:netapp:h410s_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:netapp:h410s:-:*:*:*:*:*:*:*

  • Configuration 6:
  • cpe:/o:netapp:h410c_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:netapp:h410c:-:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    linux linux kernel *
    netapp h300s firmware -
    netapp h300s -
    netapp h500s firmware -
    netapp h500s -
    netapp h700s firmware -
    netapp h700s -
    netapp h410s firmware -
    netapp h410s -
    netapp h410c firmware -
    netapp h410c -