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CVE-2023-53502
xen/netback: Fix buffer overrun triggered by unusual packet
Description

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

INFO

Published Date :

Oct. 1, 2025, 12:15 p.m.

Last Modified :

Oct. 1, 2025, 2:15 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2023-53502 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

: Total Affected Vendor : 0 | Products : 0
Solution
Address buffer overrun by reworking code to handle extra frag_overflow slots.
  • Review and update the xen/netback code.
  • Ensure correct handling of packet slot calculations.
  • Apply patches to fix buffer overrun vulnerability.
  • Test the fix to prevent future overflows.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-53502 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2023-53502 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Rejected by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Oct. 01, 2025

    Action Type Old Value New Value
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Oct. 01, 2025

    Action Type Old Value New Value
    Changed 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. Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
    Removed Reference kernel.org: https://git.kernel.org/stable/c/11e6919ae028b5de1fc48007354ea07069561b31
    Removed Reference kernel.org: https://git.kernel.org/stable/c/534fc31d09b706a16d83533e16b5dc855caf7576
    Removed Reference kernel.org: https://git.kernel.org/stable/c/b14a3924c2675c22e07a5a190223b6b6cdc2867d
    Removed Reference kernel.org: https://git.kernel.org/stable/c/bc7b9a6c2ca42b116b0f24dbaa52b5a07d96d1d6
    Removed Reference kernel.org: https://git.kernel.org/stable/c/cf482893f721f76ac60c0a43482a59b2f194156b
    Removed Reference kernel.org: https://git.kernel.org/stable/c/e1142d87c185c7d7bbf05d175754638b5b9dbf16
    Removed Reference kernel.org: https://git.kernel.org/stable/c/f9167a2d6b943f30743de6ff8163d1981c34f9a9
    Removed Reference kernel.org: https://git.kernel.org/stable/c/fa5b932b77c815d0e416612859d5899424bb4212
  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Oct. 01, 2025

    Action Type Old Value New Value
    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.
    Added Reference https://git.kernel.org/stable/c/11e6919ae028b5de1fc48007354ea07069561b31
    Added Reference https://git.kernel.org/stable/c/534fc31d09b706a16d83533e16b5dc855caf7576
    Added Reference https://git.kernel.org/stable/c/b14a3924c2675c22e07a5a190223b6b6cdc2867d
    Added Reference https://git.kernel.org/stable/c/bc7b9a6c2ca42b116b0f24dbaa52b5a07d96d1d6
    Added Reference https://git.kernel.org/stable/c/cf482893f721f76ac60c0a43482a59b2f194156b
    Added Reference https://git.kernel.org/stable/c/e1142d87c185c7d7bbf05d175754638b5b9dbf16
    Added Reference https://git.kernel.org/stable/c/f9167a2d6b943f30743de6ff8163d1981c34f9a9
    Added Reference https://git.kernel.org/stable/c/fa5b932b77c815d0e416612859d5899424bb4212
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.