What is CVE-2023-39914?

CVE-2023-39914 is a high-severity security vulnerability in bcder (rust), affecting versions < 0.7.3. It is fixed in 0.7.3.

How severe is CVE-2023-39914?

CVE-2023-39914 has a CVSS score of 7.5 (High). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.

Which versions of bcder are affected by CVE-2023-39914?

bcder (rust) versions < 0.7.3 is affected.

Is there a fix for CVE-2023-39914?

Yes. CVE-2023-39914 is fixed in 0.7.3. Upgrade to this version or later.

Is CVE-2023-39914 exploitable, and should I be worried?

Whether CVE-2023-39914 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk.

What actually determines whether CVE-2023-39914 is exploitable, and how bad it is?

Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.

CVE-2023-39914 in bcder

Q: How severe is CVE-2023-39914?

CVE-2023-39914 has a CVSS score of 7.5 (High). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.

Q: Which versions of bcder are affected by CVE-2023-39914?

bcder (rust) versions < 0.7.3 is affected.

Q: Is there a fix for CVE-2023-39914?

Yes. CVE-2023-39914 is fixed in 0.7.3. Upgrade to this version or later.

Q: Is CVE-2023-39914 exploitable, and should I be worried?

Whether CVE-2023-39914 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk.

Q: What actually determines whether CVE-2023-39914 is exploitable, and how bad it is?

Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.

Q: How do I fix CVE-2023-39914?

Upgrade bcder to 0.7.3 or later.

Summary

BER/CER/DER decoder panics on invalid input

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.

Impact

CVE-2023-39914 has a CVSS score of 7.5 (High). The vector is network-reachable, no privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (0.7.3); upgrading removes the vulnerable code path.

Affected versions

bcder (< 0.7.3)

Security releases

bcder → 0.7.3 (rust)

Kodem intelligence

Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.

Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.

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Remediation advice

Upgrade bcder to 0.7.3 or later to resolve this vulnerability.

Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.

Frequently Asked Questions

What is CVE-2023-39914? CVE-2023-39914 is a high-severity security vulnerability in bcder (rust), affecting versions < 0.7.3. It is fixed in 0.7.3.
How severe is CVE-2023-39914? CVE-2023-39914 has a CVSS score of 7.5 (High). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
Which versions of bcder are affected by CVE-2023-39914? bcder (rust) versions < 0.7.3 is affected.
Is there a fix for CVE-2023-39914? Yes. CVE-2023-39914 is fixed in 0.7.3. Upgrade to this version or later.
Is CVE-2023-39914 exploitable, and should I be worried? Whether CVE-2023-39914 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
What actually determines whether CVE-2023-39914 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
How do I fix CVE-2023-39914? Upgrade bcder to 0.7.3 or later.