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CVE-2023-53676

high

In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() The function lio_…

Vendor / product: Linux — linux kernel

In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() The function lio_target_nacl_info_show() uses sprintf() in a loop to print details for every iSCSI connection in a session without checking for the buffer length. With enough iSCSI connections it's possible to overflow the buffer provided by configfs and corrupt the memory. This patch replaces sprintf() with sysfs_emit_at() that checks for buffer boundries.

CVSS
7.8
7.8 (CVSS v3.1)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2025-10-07 16:15
Modified: 2026-10-28 20:10
NVD status: Modified
Last synced 12 hours ago
Verified against the source API 2026-10-28 20:34 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

linux / linux_kernel ≥3.1 <4.14.326, ≥4.15 <4.19.295, ≥4.20 <5.4.257, ≥5.5 <5.10.197, ≥5.11 <5.15.133, ≥5.16 <6.1.55

Weakness classification (CWE)

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Patch / mitigation: https://git.kernel.org/stable/c/0cac6cbb9908309352a5d30c1876882771d3da50
Patch / mitigation: https://git.kernel.org/stable/c/114b44dddea1f8f99576de3c0e6e9059012002fc
Patch / mitigation: https://git.kernel.org/stable/c/2cbe6a88fbdd6e8aeab358eef61472e2de43d6f6
Patch / mitigation: https://git.kernel.org/stable/c/4738bf8b2d3635c2944b81b2a84d97b8c8b0978d
Patch / mitigation: https://git.kernel.org/stable/c/5353df78c22623b42a71d51226d228a8413097e2
Patch / mitigation: https://git.kernel.org/stable/c/801f287c93ff95582b0a2d2163f12870a2f076d4
Patch / mitigation: https://git.kernel.org/stable/c/bbe3ff47bf09db8956bc2eeb49d2d514d256ad2a
Patch / mitigation: https://git.kernel.org/stable/c/df349e84c2cb0dd05d98c8e1189c26ab4b116083

References

Data sources

NVD CVE API 2.0 — fetched 2026-10-28 20:34 UTC · record ↗

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