osv-2020-1835
Vulnerability from osv_ossfuzz
Published
2020-09-25 00:00
Modified
2022-04-13 03:04
Summary
Stack-buffer-overflow in fmt::v7::detail::buffer<char>::push_back
Details

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25884

Crash type: Stack-buffer-overflow READ 1
Crash state:
fmt::v7::detail::buffer<char>::push_back
std::__1::back_insert_iterator<fmt::v7::detail::buffer<char> >::operator=
fmt::v7::detail::buffer_appender<char> std::__1::__copy_constexpr<char const*, f
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "severity": "MEDIUM"
      },
      "package": {
        "ecosystem": "OSS-Fuzz",
        "name": "libfmt"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "16410056bf0e6e8800c9ac4c231be3f1a688f8b3"
            },
            {
              "fixed": "c156093ffd99b0689af3826f3aa04e7db97cc543"
            }
          ],
          "repo": "https://github.com/fmtlib/fmt.git",
          "type": "GIT"
        }
      ],
      "versions": []
    }
  ],
  "details": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25884\n\n```\nCrash type: Stack-buffer-overflow READ 1\nCrash state:\nfmt::v7::detail::buffer\u003cchar\u003e::push_back\nstd::__1::back_insert_iterator\u003cfmt::v7::detail::buffer\u003cchar\u003e \u003e::operator=\nfmt::v7::detail::buffer_appender\u003cchar\u003e std::__1::__copy_constexpr\u003cchar const*, f\n```\n",
  "id": "OSV-2020-1835",
  "modified": "2022-04-13T03:04:41.466004Z",
  "published": "2020-09-25T00:00:10.846065Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25884"
    }
  ],
  "summary": "Stack-buffer-overflow in fmt::v7::detail::buffer\u003cchar\u003e::push_back"
}


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