CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
AI Score
Confidence
Low
EPSS
Percentile
20.4%
Issue Overview:
A malicious HTTP sender can use chunk extensions to cause a receiver reading from a request or response body to read many more bytes from the network than are in the body. A malicious HTTP client can further exploit this to cause a server to automatically read a large amount of data (up to about 1GiB) when a handler fails to read the entire body of a request. Chunk extensions are a little-used HTTP feature which permit including additional metadata in a request or response body sent using the chunked encoding. The net/http chunked encoding reader discards this metadata. A sender can exploit this by inserting a large metadata segment with each byte transferred. The chunk reader now produces an error if the ratio of real body to encoded bytes grows too small. (CVE-2023-39326)
Affected Packages:
cni-plugins
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update cni-plugins to update your system.
New Packages:
aarch64:
cni-plugins-1.2.0-1.amzn2.0.5.aarch64
cni-plugins-debuginfo-1.2.0-1.amzn2.0.5.aarch64
src:
cni-plugins-1.2.0-1.amzn2.0.5.src
x86_64:
cni-plugins-1.2.0-1.amzn2.0.5.x86_64
cni-plugins-debuginfo-1.2.0-1.amzn2.0.5.x86_64
Red Hat: CVE-2023-39326
Mitre: CVE-2023-39326
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 2 | aarch64 | cni-plugins | < 1.2.0-1.amzn2.0.5 | cni-plugins-1.2.0-1.amzn2.0.5.aarch64.rpm |
Amazon Linux | 2 | aarch64 | cni-plugins-debuginfo | < 1.2.0-1.amzn2.0.5 | cni-plugins-debuginfo-1.2.0-1.amzn2.0.5.aarch64.rpm |
Amazon Linux | 2 | x86_64 | cni-plugins | < 1.2.0-1.amzn2.0.5 | cni-plugins-1.2.0-1.amzn2.0.5.x86_64.rpm |
Amazon Linux | 2 | x86_64 | cni-plugins-debuginfo | < 1.2.0-1.amzn2.0.5 | cni-plugins-debuginfo-1.2.0-1.amzn2.0.5.x86_64.rpm |