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CVE-2023-3268

HIGH
7.1
CVSS Score
Published: June 16, 2023 at 12:00 AM UTC
Updated: October 14, 2026 at 09:17 PM UTC
2 products affected across 2 vendorsLinux KernelDebian Linux

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Severity
HIGH7.1
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

An out of bounds (OOB) memory access flaw was found in the Linux kernel in relay_file_read_start_pos in kernel/relay.c in the relayfs. This flaw could allow a local attacker to crash the system or leak kernel internal information.

Affected

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

Debian Linux· Debiandrupal
95%
10.011.012.0
Linux Kernel· Linux
95%
2.6.22 ≤ v < 4.19.2834.20 ≤ v < 5.4.2435.11 ≤ v < 5.15.1115.16 ≤ v < 6.1.285.5 ≤ v < 5.10.1806.2 ≤ v < 6.2.156.3 ≤ v < 6.3.22.6.224.205.115.165.56.26.3
Affected range stops below 4.19.283, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.10.180, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.15.111, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.4.243, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.1.28, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.2.15, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.3.2, so it looks safe — our inference, not a vendor statement

References (10)

Mailing ListRelease Notes
Source: [email protected]
https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.2
Patch
Source: [email protected]
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=43ec16f1450f4936025a9bdf1a273affdb9732c1
Mailing ListThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2023/07/msg00030.html
Mailing ListThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
Vendor Advisory
Source: [email protected]
https://lore.kernel.org/lkml/1682238502-1892-1-git-send-email-yangpc%40wangsu.com/T/
Third Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20230824-0006/
Vendor AdvisoryThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2023/dsa-5448
Vendor AdvisoryThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2023/dsa-5480

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

7.1HIGHCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-125

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