CVE-2023-24534

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.

CVSS Metrics

• v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.16%• Percentile: 37%

Techniques & Countermeasures

• CWE-400•Uncontrolled Resource Consumption

  The product does not properly control the allocation and maintenance of a limited resource.

Affected Systems

• go standard library•net/textproto

  < 1.19.8 | ≥ 1.20.0-0, < 1.20.3

• golang•go

  < 1.19.8 | ≥ 1.20.0, < 1.20.3

• Go•stdlib

  ≥ 1.20.0-0, < 1.20.3

References (6)

• https://go.dev/issue/58975
• https://go.dev/cl/481994
• https://groups.google.com/g/golang-announce/c/Xdv6JL9ENs8
• https://pkg.go.dev/vuln/GO-2023-1704
• https://security.netapp.com/advisory/ntap-20230526-0007/
• https://security.gentoo.org/glsa/202311-09