rustsec-2018-0004
Vulnerability from osv_rustsec
Published
2018-08-25 12:00
Modified
2023-06-13 13:10
Summary
Malicious input could cause uninitialized memory to be exposed
Details

Affected versions of Claxon made an invalid assumption about the decode buffer size being a multiple of a value read from the bitstream. This could cause parts of the decode buffer to not be overwritten. If the decode buffer was newly allocated and uninitialized, this uninitialized memory could be exposed.

This allows an attacker to observe parts of the uninitialized memory in the decoded audio stream.

The flaw was corrected by checking that the value read from the bitstream divides the decode buffer size, and returning a format error if it does not. If an error is returned, the decode buffer is not exposed. Regression tests and an additional fuzzer have been added to prevent similar flaws in the future.


{
  "affected": [
    {
      "database_specific": {
        "categories": [],
        "cvss": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
        "informational": null
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "claxon",
        "purl": "pkg:cargo/claxon"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            },
            {
              "fixed": "0.3.2"
            },
            {
              "introduced": "0.4.0-0"
            },
            {
              "fixed": "0.4.1"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "CVE-2018-20992",
    "GHSA-8c6g-4xc5-w96c"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "Affected versions of Claxon made an invalid assumption about the decode buffer\nsize being a multiple of a value read from the bitstream. This could cause parts\nof the decode buffer to not be overwritten. If the decode buffer was newly\nallocated and uninitialized, this uninitialized memory could be exposed.\n\nThis allows an attacker to observe parts of the uninitialized memory in the\ndecoded audio stream.\n\nThe flaw was corrected by checking that the value read from the bitstream divides\nthe decode buffer size, and returning a format error if it does not. If an error\nis returned, the decode buffer is not exposed. Regression tests and an\nadditional fuzzer have been added to prevent similar flaws in the future.",
  "id": "RUSTSEC-2018-0004",
  "modified": "2023-06-13T13:10:24Z",
  "published": "2018-08-25T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/claxon"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2018-0004.html"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ruuda/claxon/commit/8f28ec275e412dd3af4f3cda460605512faf332c"
    }
  ],
  "related": [],
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Malicious input could cause uninitialized memory to be exposed"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…