CVE-2025-54472
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-08-14

Last updated on: 2025-11-04

Assigner: Apache Software Foundation

Description
Unlimited memory allocation in redis protocol parser in Apache bRPC (all versions < 1.14.1) on all platforms allows attackers to crash the service via network. Root Cause: In the bRPC Redis protocol parser code, memory for arrays or strings of corresponding sizes is allocated based on the integers read from the network. If the integer read from the network is too large, it may cause a bad alloc error and lead to the program crashing. Attackers can exploit this feature by sending special data packets to the bRPC service to carry out a denial-of-service attack on it. The bRPC 1.14.0 version tried to fix this issue by limited the memory allocation size, however, the limitation checking code is not well implemented that may cause integer overflow and evade such limitation. So the 1.14.0 version is also vulnerable, although the integer range that affect version 1.14.0 is different from that affect version < 1.14.0. Affected scenarios: Using bRPC as a Redis server to provide network services to untrusted clients, or using bRPC as a Redis client to call untrusted Redis services. How to Fix: we provide two methods, you can choose one of them: 1. Upgrade bRPC to version 1.14.1. 2. Apply this patch ( https://github.com/apache/brpc/pull/3050 ) manually. No matter you choose which method, you should note that the patch limits the maximum length of memory allocated for each time in the bRPC Redis parser. The default limit is 64M. If some of you redis request or response have a size larger than 64M, you might encounter error after upgrade. For such case, you can modify the gflag redis_max_allocation_size to set a larger limit.
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Meta Information
Published
2025-08-14
Last Modified
2025-11-04
Generated
2026-05-07
AI Q&A
2025-08-14
EPSS Evaluated
2026-05-05
NVD
CVE-2025-54472
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
apache brpc to 1.14.1 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-400 The product does not properly control the allocation and maintenance of a limited resource.
CWE-190 The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability is an unlimited memory allocation issue in the Redis protocol parser of Apache bRPC versions before 1.14.1. The parser allocates memory based on integers read from the network, but if these integers are too large, it can cause a memory allocation error leading to a crash of the service. Attackers can exploit this by sending specially crafted data packets to cause a denial-of-service (DoS) attack.


How can this vulnerability impact me? :

The vulnerability can be exploited by attackers to crash the bRPC service by causing it to allocate excessive memory, resulting in a denial-of-service (DoS) condition. This can disrupt network services if bRPC is used as a Redis server or client, especially when interacting with untrusted clients or services.


What immediate steps should I take to mitigate this vulnerability?

To mitigate this vulnerability, you should either upgrade bRPC to version 1.14.1 or manually apply the patch available at https://github.com/apache/brpc/pull/3050. The patch limits the maximum memory allocation size in the bRPC Redis parser to 64M by default. If your Redis requests or responses exceed 64M, you can adjust the gflag 'redis_max_allocation_size' to a larger value accordingly.


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