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CVE-2023-24534

HIGHCVSS 7.5/10EPSS 1.89%

Last modified

CVE-2023-24534 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. HTTP and MIME header parsing can allocate large amounts of memory, even when parsing small inputs, potentially leading to a denial of service. Certain unusual patterns of input data can cause the common function used to parse HTTP and MIME headers to allocate substantially more memory than required to hold the parsed headers. EPSS estimates a 1.89% chance of exploitation in the next 30 days.

Description

HTTP and MIME header parsing can allocate large amounts of memory, even when parsing small inputs, potentially leading to a denial of service. Certain unusual patterns of input data can cause the common function used to parse HTTP and MIME headers to allocate substantially more memory than required to hold the parsed headers. An attacker can exploit this behavior to cause an HTTP server to allocate large amounts of memory from a small request, potentially leading to memory exhaustion and a denial of service. With fix, header parsing now correctly allocates only the memory required to hold parsed headers.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
1.89%

76.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
GolangGo< 1.19.8
GolangGo>= 1.20.0, < 1.20.3

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2023-24534?
HTTP and MIME header parsing can allocate large amounts of memory, even when parsing small inputs, potentially leading to a denial of service. Certain unusual patterns of input data can cause the common function used to parse HTTP and MIME headers to allocate substantially more memory than required to hold the parsed headers. An attacker can exploit this behavior to cause an HTTP server to allocate large amounts of memory from a small request, potentially leading to memory exhaustion and a denial of service. With fix, header parsing now correctly allocates only the memory required to hold parsed headers.
How severe is CVE-2023-24534?
CVE-2023-24534 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.89% probability of exploitation in the next 30 days.
How do I fix CVE-2023-24534?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST