01 Record

CVE-2022-49014

net: tun: Fix use-after-free in tun_detach()

HighPUBLISHEDCNA: Linux

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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02 Description

net: tun: Fix use-after-free in tun_detach()

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.26% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 17.9% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-08-04.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2024-10-21 20:06Z2 YR AGO

Last updated

2026-08-05 08:53Z2 MO AGO

Reserved

2024-08-22

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-416Use After FreeVariant

Data version

5.2

Document digest

dfaecbc697c6e30ab685703cd322a0c090733d841ac5697360fb2c95c4a8f4a3

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux83c1f36f9880814b24cdf6c2f91f66f61db65326 to < 1f23f1890d91812c35d32eab1b49621b6d32dc7b, 83c1f36f9880814b24cdf6c2f91f66f61db65326 to < 16c244bc65d1175775325ec0489a5a5c830e02c7, 83c1f36f9880814b24cdf6c2f91f66f61db65326 to < 5f442e1d403e0496bacb74a58e2be7f500695e6f, 83c1f36f9880814b24cdf6c2f91f66f61db65326 to < 04b995e963229501401810dab89dc73e7f12d054, 83c1f36f9880814b24cdf6c2f91f66f61db65326 to < 4cde8da2d814a3b7b176db81922d4ddaad7c0f0e, 83c1f36f9880814b24cdf6c2f91f66f61db65326 to < 5daadc86f27ea4d691e2131c04310d0418c6cd12, 4.17—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/1f23f1890d91812c35d32eab1b49621b6d32dc7b
git.kernel.orghttps://git.kernel.org/stable/c/16c244bc65d1175775325ec0489a5a5c830e02c7
git.kernel.orghttps://git.kernel.org/stable/c/5f442e1d403e0496bacb74a58e2be7f500695e6f
git.kernel.orghttps://git.kernel.org/stable/c/04b995e963229501401810dab89dc73e7f12d054
git.kernel.orghttps://git.kernel.org/stable/c/4cde8da2d814a3b7b176db81922d4ddaad7c0f0e
git.kernel.orghttps://git.kernel.org/stable/c/5daadc86f27ea4d691e2131c04310d0418c6cd12

07 Fixed in

Debian 12

linux
Fixed in 6.0.12-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.0.12-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 6.0.12-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.