CVE-2023-53502

kernel: xen/netback: Fix buffer overrun triggered by unusual packet

Published Oct 1, 2025 CVSS 3.1 · 5.5 Medium EPSS n/a KEV · Not listed

Description

This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

No data.

No data available yet.

No remediation available yet

Source	ID	Title
EUVD	EUVD-2025-31912	This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

No CVSS v4.0

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://lore.kernel.org/linux-cve-announce/2025100127-CVE-2023-53502-aa6a@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2023-53502
https://www.cve.org/CVERecord?id=CVE-2023-53502

History

Type	Values Removed	Values Added
Title		kernel: xen/netback: Fix buffer overrun triggered by unusual packet
References		https://lore.kernel.org/linux-cve-announce/2025100127-CVE-2023-53502-aa6a@gregkh/T https://nvd.nist.gov/vuln/detail/CVE-2023-53502 https://www.cve.org/CVERecord?id=CVE-2023-53502
Metrics	threat_severity `None`	cvssV3_1 `{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}` threat_severity `Moderate`

Type	Values Removed	Values Added
References	https://git.kernel.org/stable/c/11e6919ae028b5de1fc48007354ea07069561b31 https://git.kernel.org/stable/c/534fc31d09b706a16d83533e16b5dc855caf7576 https://git.kernel.org/stable/c/b14a3924c2675c22e07a5a190223b6b6cdc2867d https://git.kernel.org/stable/c/bc7b9a6c2ca42b116b0f24dbaa52b5a07d96d1d6 https://git.kernel.org/stable/c/cf482893f721f76ac60c0a43482a59b2f194156b https://git.kernel.org/stable/c/e1142d87c185c7d7bbf05d175754638b5b9dbf16 https://git.kernel.org/stable/c/f9167a2d6b943f30743de6ff8163d1981c34f9a9 https://git.kernel.org/stable/c/fa5b932b77c815d0e416612859d5899424bb4212

Type	Values Removed	Values Added
Description	In the Linux kernel, the following vulnerability has been resolved: xen/netback: Fix buffer overrun triggered by unusual packet It is possible that a guest can send a packet that contains a head + 18 slots and yet has a len <= XEN_NETBACK_TX_COPY_LEN. This causes nr_slots to underflow in xenvif_get_requests() which then causes the subsequent loop's termination condition to be wrong, causing a buffer overrun of queue->tx_map_ops. Rework the code to account for the extra frag_overflow slots. This is CVE-2023-34319 / XSA-432.	This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
Title	xen/netback: Fix buffer overrun triggered by unusual packet

Type	Values Removed	Values Added
Description		In the Linux kernel, the following vulnerability has been resolved: xen/netback: Fix buffer overrun triggered by unusual packet It is possible that a guest can send a packet that contains a head + 18 slots and yet has a len <= XEN_NETBACK_TX_COPY_LEN. This causes nr_slots to underflow in xenvif_get_requests() which then causes the subsequent loop's termination condition to be wrong, causing a buffer overrun of queue->tx_map_ops. Rework the code to account for the extra frag_overflow slots. This is CVE-2023-34319 / XSA-432.
Title		xen/netback: Fix buffer overrun triggered by unusual packet
References		https://git.kernel.org/stable/c/11e6919ae028b5de1fc48007354ea07069561b31 https://git.kernel.org/stable/c/534fc31d09b706a16d83533e16b5dc855caf7576 https://git.kernel.org/stable/c/b14a3924c2675c22e07a5a190223b6b6cdc2867d https://git.kernel.org/stable/c/bc7b9a6c2ca42b116b0f24dbaa52b5a07d96d1d6 https://git.kernel.org/stable/c/cf482893f721f76ac60c0a43482a59b2f194156b https://git.kernel.org/stable/c/e1142d87c185c7d7bbf05d175754638b5b9dbf16 https://git.kernel.org/stable/c/f9167a2d6b943f30743de6ff8163d1981c34f9a9 https://git.kernel.org/stable/c/fa5b932b77c815d0e416612859d5899424bb4212