CVE-2022-23085

Potential jail escape vulnerabilities in netmap

HIGH

8.2

CVSS Score

Published: February 15, 2024 at 04:52 AM UTC

Updated: June 17, 2026 at 04:29 AM UTC

1 product affected across 1 vendorFreeBSD

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Severity

HIGH8.2

Exploit prediction

EPSS 0.5%

SSVC

No known exploit

Description

A user-provided integer option was passed to nmreq_copyin() without checking if it would overflow. This insufficient bounds checking could lead to kernel memory corruption. On systems configured to include netmap in their devfs_ruleset, a privileged process running in a jail can affect the host environment.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

FreeBSD · Freebsd

95%

12.0 ≤ v < 12.312.3 ≤ v < 12.3_p512.3-RELEASE ≤ v < p513.0 ≤ v < 13.0_p1113.0-RELEASE ≤ v < p1113.1 ≤ v < 13.1-rc-p13.1-RC1 ≤ v < p112.3 12.3 p1 12.3 p2 12.3 p3 12.3 p4 12.3-RELEASE 13.0 13.0 beta1 13.0 beta2 13.0 beta3 13.0 beta3-p1 13.0 beta4 13.0 p1 13.0 p10 13.0 p2 13.0 p3 13.0 p4 13.0 p5 13.0 p6 13.0 p7 13.0 p8 13.0 p9 13.0 rc1 13.0 rc2 13.0 rc3 13.0 rc4 13.0 rc5 13.0 rc5-p1 13.0-RELEASE 13.1 13.1-RC1

Affected range stops below 12.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.3_p5, so it looks safe — our inference, not a vendor statement

Affected range stops below 13.0_p11, so it looks safe — our inference, not a vendor statement

Affected range stops below 13.1-rc-p, so it looks safe — our inference, not a vendor statement

Affected range stops below p1, so it looks safe — our inference, not a vendor statement

Affected range stops below p11, so it looks safe — our inference, not a vendor statement

Affected range stops below p5, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://security.freebsd.org/advisories/FreeBSD-SA-22:04.netmap.asc

References (2)

Vendor Advisory

Source: [email protected]

https://security.freebsd.org/advisories/FreeBSD-SA-22:04.netmap.asc

Third Party Advisory

Source: [email protected]

https://security.netapp.com/advisory/ntap-20240322-0004/

SSVC — Action Prioritization

SSVCNo known exploitAutomatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.2HIGH[email protected]

Attack Vector: LOCAL
Complexity: LOW
Privileges: HIGH
User Interaction: NONE
Scope: CHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusANALYZED

CWE

CWE-787CWE-120

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