CVE-2023-53782
dccp: Fix out of bounds access in DCCP error handler
Description
In the Linux kernel, the following vulnerability has been resolved: dccp: Fix out of bounds access in DCCP error handler There was a previous attempt to fix an out-of-bounds access in the DCCP error handlers, but that fix assumed that the error handlers only want to access the first 8 bytes of the DCCP header. Actually, they also look at the DCCP sequence number, which is stored beyond 8 bytes, so an explicit pskb_may_pull() is required.
INFO
Published Date :
Dec. 9, 2025, 1:16 a.m.
Last Modified :
Dec. 9, 2025, 6:37 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Update the Linux kernel to include the fix.
- Ensure the pskb_may_pull() function is used correctly.
- Verify the DCCP error handler logic.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-53782.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-53782 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-53782
weaknesses.
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).
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The following list is the news that have been mention
CVE-2023-53782 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-53782 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.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Dec. 09, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: dccp: Fix out of bounds access in DCCP error handler There was a previous attempt to fix an out-of-bounds access in the DCCP error handlers, but that fix assumed that the error handlers only want to access the first 8 bytes of the DCCP header. Actually, they also look at the DCCP sequence number, which is stored beyond 8 bytes, so an explicit pskb_may_pull() is required. Added Reference https://git.kernel.org/stable/c/177212bf6dc1ff2d13d0409cddc5c9e81feec63d Added Reference https://git.kernel.org/stable/c/3533e10272555c422a7d51ebc0ce8c483429f7f2 Added Reference https://git.kernel.org/stable/c/4b8a938e329ae4eb54b73b0c87b5170607b038a8 Added Reference https://git.kernel.org/stable/c/6ecf09699eb1554299aa1e7fd13e9e80f656c2f9 Added Reference https://git.kernel.org/stable/c/7a7dd70cb954d3efa706a429687ded88c02496fa Added Reference https://git.kernel.org/stable/c/977ad86c2a1bcaf58f01ab98df5cc145083c489c Added Reference https://git.kernel.org/stable/c/d8171411a661253e6271fa10b65b46daf1b6471c Added Reference https://git.kernel.org/stable/c/ec620c34f5fa5d055f9f6136a387755db6157712 Added Reference https://git.kernel.org/stable/c/f8a7f10a1dccf9868ff09342a73dce27501b86df