01 Record

CVE-2023-52439

uio: Fix use-after-free in uio_open

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

uio: Fix use-after-free in uio_open

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

0.30% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 22.4% 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

2024-02-20 18:34Z2 YR AGO

Last updated

2026-08-05 09:09Z1 MO AGO

Reserved

2024-02-20

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-415Double FreeVariant
CWE-416Use After FreeVariant

Data version

5.2

Document digest

ab2c21447b535fc7f92ab15235ef5a80293ef0101c961d161ea464609d3cd843

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux57c5f4df0a5a0ee83df799991251e2ee93a5e4e9 to < 3174e0f7de1ba392dc191625da83df02d695b60c, 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9 to < e93da893d52d82d57fc0db2ca566024e0f26ff50, 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9 to < 5e0be1229ae199ebb90b33102f74a0f22d152570, 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9 to < 5cf604ee538ed0c467abe3b4cda5308a6398f0f7, 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9 to < 17a8519cb359c3b483fb5c7367efa9a8a508bdea, 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9 to < 35f102607054faafe78d2a6994b18d5d9d6e92ad, 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9 to < 913205930da6213305616ac539447702eaa85e41, 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9 to < 0c9ae0b8605078eafc3bea053cc78791e97ba2e2, 13af019c87f2d90e663742cb1a819834048842ae, 4.14.100 to < 4.15, 4.18—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/3174e0f7de1ba392dc191625da83df02d695b60c
git.kernel.orghttps://git.kernel.org/stable/c/e93da893d52d82d57fc0db2ca566024e0f26ff50
git.kernel.orghttps://git.kernel.org/stable/c/5e0be1229ae199ebb90b33102f74a0f22d152570
git.kernel.orghttps://git.kernel.org/stable/c/5cf604ee538ed0c467abe3b4cda5308a6398f0f7
git.kernel.orghttps://git.kernel.org/stable/c/17a8519cb359c3b483fb5c7367efa9a8a508bdea
git.kernel.orghttps://git.kernel.org/stable/c/35f102607054faafe78d2a6994b18d5d9d6e92ad
git.kernel.orghttps://git.kernel.org/stable/c/913205930da6213305616ac539447702eaa85e41
git.kernel.orghttps://git.kernel.org/stable/c/0c9ae0b8605078eafc3bea053cc78791e97ba2e2
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
security.netapp.comhttps://security.netapp.com/advisory/ntap-20241227-0006/

01 Record index

CVE-2023-52439

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2023-52439

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References