CVE-2023-39914— BER/CER/DER decoder panics on invalid input
Quick assessment
Affected
NLnet Labs bcder
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.
NLnet Labs bcder是NLnet Labs开源的一个库。提供 ASN.1 标准的基本编码规则 (BER) 以及更严格的规范编码规则 (CER) 和杰出编码规则 (DER) 变体的解码和编码。 NLnet Labs bcder 0.7.2及之前版本存在安全漏洞，该漏洞源于对输入数据的验证不足，导致在解码某些无效输入时会发生崩溃。
Possible ATT&CK Techniques 2 AI
T1190 · Exploit Public-Facing Application T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2023-39914
Vulnerability Information
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Vulnerability Title
BER/CER/DER decoder panics on invalid input
Source: CVE Program / CVE List V5
Vulnerability Description
NLnet Labs' bcder library up to and including version 0.7.2 panics while decoding certain invalid input data rather than rejecting the data with an error. This can affect both the actual decoding stage as well as accessing content of types that utilized delayed decoding.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未定义值处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
NLnet Labs bcder 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NLnet Labs bcder是NLnet Labs开源的一个库。提供 ASN.1 标准的基本编码规则 (BER) 以及更严格的规范编码规则 (CER) 和杰出编码规则 (DER) 变体的解码和编码。 NLnet Labs bcder 0.7.2及之前版本存在安全漏洞，该漏洞源于对输入数据的验证不足，导致在解码某些无效输入时会发生崩溃。
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 |
|---|---|---|---|---|
| NLnet Labs | bcder | * ~ 0.7.3 | - |
|
II. Public POCs for CVE-2023-39914
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2023-39914 (1)
-
https://nlnetlabs.nl/downloads/bcder/CVE-2023-39914.txt vendor-advisory
Same Patch Batch · NLnet Labs · 2023-09-13 · 3 CVEs total
| CVE-2023-39916 | 9.3 CRITICAL | Possible path traversal when storing RRDP responses |
| CVE-2023-39915 | 7.5 HIGH | Crashes on parsing certain invalid RPKI objects |
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Same weakness: CWE-232
V. Comments for CVE-2023-39914
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