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CVE-2023-49062

Quick assessment

Affected
Facebook Katran
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.

Meta Katran是美国Meta公司的一个 C++ 库和 BPF 程序。用于构建高性能第 4 层负载均衡转发平面。 Meta Katran存在安全漏洞，该漏洞源于可以将未初始化的内核内存作为IP标头的一部分公开。

AI Predicted 5.3 Difficulty: Moderate EPSS 0.62% · P47

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery
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I. Basic Information for CVE-2023-49062

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Katran could disclose non-initialized kernel memory as part of an IP header. The issue was present for IPv4 encapsulation and ICMP (v4) Too Big packet generation. After a bpf_xdp_adjust_head call, Katran code didn’t initialize the Identification field for the IPv4 header, resulting in writing content of kernel memory in that field of IP header. The issue affected all Katran versions prior to commit 6a03106ac1eab39d0303662963589ecb2374c97f
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Meta Katran 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Meta Katran是美国Meta公司的一个 C++ 库和 BPF 程序。用于构建高性能第 4 层负载均衡转发平面。 Meta Katran存在安全漏洞，该漏洞源于可以将未初始化的内核内存作为IP标头的一部分公开。
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
Facebook Katran 0 ~ 6a03106ac1eab39d0303662963589ecb2374c97f -

II. Public POCs for CVE-2023-49062

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III. Intelligence Information for CVE-2023-49062

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Patches & Fixes for CVE-2023-49062 (1)

Other References for CVE-2023-49062 (1)

IV. Related Vulnerabilities

Same vendor: Facebook

V. Comments for CVE-2023-49062

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