GHSA-36CG-4JFF-5863

Vulnerability from github – Published: 2021-08-25 20:59 – Updated: 2023-06-13 20:41
VLAI?
Summary
Data races in signal-simple
Details

Affected versions of this crate unconditionally implement Send/Sync for SyncChannel. SyncChannel doesn't provide access to &T but merely serves as a channel that consumes and returns owned T.

Users can create UB in safe Rust by sending T: !Send to other threads with SyncChannel::send/recv APIs. Using T = Arc<Cell<_> allows to create data races (which can lead to memory corruption), and using T = MutexGuard allows to unlock a mutex from a thread that didn't lock the mutex.

Severity ?
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Show details on source website
To clipboard Create KEV Entry 

{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "signal-simple"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0.1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-36446"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119",
      "CWE-362"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-08-09T21:44:31Z",
    "nvd_published_at": "2021-08-08T06:15:00Z",
    "severity": "HIGH"
  },
  "details": "Affected versions of this crate unconditionally implement Send/Sync for SyncChannel\u003cT\u003e. SyncChannel\u003cT\u003e doesn\u0027t provide access to \u0026T but merely serves as a channel that consumes and returns owned T.\n\nUsers can create UB in safe Rust by sending T: !Send to other threads with SyncChannel::send/recv APIs. Using T = Arc\u003cCell\u003c_\u003e allows to create data races (which can lead to memory corruption), and using T = MutexGuard\u003cT\u003e allows to unlock a mutex from a thread that didn\u0027t lock the mutex.",
  "id": "GHSA-36cg-4jff-5863",
  "modified": "2023-06-13T20:41:14Z",
  "published": "2021-08-25T20:59:13Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-36446"
    },
    {
      "type": "WEB",
      "url": "https://github.com/kitsuneninetails/signal-rust/issues/2"
    },
    {
      "type": "WEB",
      "url": "https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/signal-simple/RUSTSEC-2020-0126.md"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2020-0126.html"
    },
    {
      "type": "PACKAGE",
      "url": "http://github.com/kitsuneninetails/signal-rust"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Data races in signal-simple"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.



Detection rules are retrieved from Rulezet.