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CVE-2021-29499— Predictable SIF UUID Identifiers

Quick assessment

Affected
sylabs sif
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.

Singularity Image Format（SIF）是Singularity 团队（Singularity）的一个压缩的squashfs文件系统，它具有块的组织结构，包括元数据和用于容器的定义文件，首标，分区的内容，签名（如果存在的话），以及当然，二进制文件本身的容器。 Singularity Image Format 1.2.3之前版本存在安全特征问题漏洞，该漏洞源于github.com/satori/go.uuid模块的依赖版本中的随机性不安全。

CVSS 7.5 · High EPSS 0.96% · P61

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle
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I. Basic Information for CVE-2021-29499

Vulnerability Information
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Vulnerability Title
Predictable SIF UUID Identifiers
Source: CVE Program / CVE List V5
Vulnerability Description
SIF is an open source implementation of the Singularity Container Image Format. The `siftool new` command and func siftool.New() produce predictable UUID identifiers due to insecure randomness in the version of the `github.com/satori/go.uuid` module used as a dependency. A patch is available in version >= v1.2.3 of the module. Users are encouraged to upgrade. As a workaround, users passing CreateInfo struct should ensure the `ID` field is generated using a version of `github.com/satori/go.uuid` that is not vulnerable to this issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用不充分的随机数
Source: CVE Program / CVE List V5
Vulnerability Title
Singularity Image Format 安全特征问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Singularity Image Format（SIF）是Singularity 团队（Singularity）的一个压缩的squashfs文件系统，它具有块的组织结构，包括元数据和用于容器的定义文件，首标，分区的内容，签名（如果存在的话），以及当然，二进制文件本身的容器。 Singularity Image Format 1.2.3之前版本存在安全特征问题漏洞，该漏洞源于github.com/satori/go.uuid模块的依赖版本中的随机性不安全。
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
sylabs sif <= 1.2.2 -

II. Public POCs for CVE-2021-29499

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III. Intelligence Information for CVE-2021-29499

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Vendor Advisories for CVE-2021-29499 (1)

IV. Related Vulnerabilities

Same product: sif
Same vendor: sylabs
Same weakness: CWE-330

V. Comments for CVE-2021-29499

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