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CVE-2024-8375— Object deserialization in Reverb leading to RCE

Quick assessment

Affected
Google Deepmind Reverb
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Reverb是Google DeepMind开源的一个高效且易于使用的数据存储和传输系统。 Reverb存在安全漏洞,该漏洞源于当解包类型为 VARIANT 的张量原型时,会将 tensor_content 中的字节覆盖之前分配的所有对象的 vtable 指针,导致释放后重用漏洞。

AI Predicted 9.8 Difficulty: Easy EPSS 0.12% · P2
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I. Basic Information for CVE-2024-8375

Vulnerability Information

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Vulnerability Title
Object deserialization in Reverb leading to RCE
Source: CVE Program / CVE List V5
Vulnerability Description
There exists a use after free vulnerability in Reverb. Reverb supports the VARIANT datatype, which is supposed to represent an arbitrary object in C++. When a tensor proto of type VARIANT is unpacked, memory is first allocated to store the entire tensor, and a ctor is called on each instance. Afterwards, Reverb copies the content in tensor_content to the previously mentioned pre-allocated memory, which results in the bytes in tensor_content overwriting the vtable pointers of all the objects which were previously allocated. Reverb exposes 2 relevant gRPC endpoints: InsertStream and SampleStream. The attacker can insert this stream into the server’s database, then when the client next calls SampleStream they will unpack the tensor into RAM, and when any method on that object is called (including its destructor) the attacker gains control of the Program Counter. We recommend upgrading past git commit  https://github.com/google-deepmind/reverb/commit/6a0dcf4c9e842b7f999912f792aaa6f6bd261a25
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:A/VC:L/VI:H/VA:N/SC:L/SI:H/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
Reverb 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Reverb是Google DeepMind开源的一个高效且易于使用的数据存储和传输系统。 Reverb存在安全漏洞,该漏洞源于当解包类型为 VARIANT 的张量原型时,会将 tensor_content 中的字节覆盖之前分配的所有对象的 vtable 指针,导致释放后重用漏洞。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Google Deepmind Reverb 0 ~ https://github.com/google-deepmind/reverb/commit/6a0dcf4c9e842b7f999912f792aaa6f6bd261a25 -

II. Public POCs for CVE-2024-8375

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III. Intelligence Information for CVE-2024-8375

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