Vulnerability-Lookup

PYSEC-2021-868

Vulnerability from pysec - Published: 2021-12-26 05:15 - Updated: 2022-01-07 19:23

Details

An issue was discovered in split_region in uc.c in Unicorn Engine before 2.0.0-rc5. It allows local attackers to escape the sandbox. An attacker must first obtain the ability to execute crafted code in the target sandbox in order to exploit this vulnerability. The specific flaw exists within the virtual memory manager. The issue results from the faulty comparison of GVA and GPA while calling uc_mem_map_ptr to free part of a claimed memory block. An attacker can leverage this vulnerability to escape the sandbox and execute arbitrary code on the host machine.

Impacted products

Name	purl
unicorn	pkg:pypi/unicorn

Aliases

CVE-2021-44078

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "unicorn",
        "purl": "pkg:pypi/unicorn"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "c733bbada356b0373fa8aa72c044574bb855fd24"
            }
          ],
          "repo": "https://github.com/unicorn-engine/unicorn",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.0.0rc1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.0",
        "1.0.0rc2",
        "1.0.0rc3",
        "1.0.1",
        "1.0.2",
        "1.0.2rc1",
        "1.0.2rc2",
        "1.0.2rc3",
        "1.0.2rc4",
        "1.0.2rc5",
        "1.0.2rc6",
        "1.0.3"
      ]
    }
  ],
  "aliases": [
    "CVE-2021-44078"
  ],
  "details": "An issue was discovered in split_region in uc.c in Unicorn Engine before 2.0.0-rc5. It allows local attackers to escape the sandbox. An attacker must first obtain the ability to execute crafted code in the target sandbox in order to exploit this vulnerability. The specific flaw exists within the virtual memory manager. The issue results from the faulty comparison of GVA and GPA while calling uc_mem_map_ptr to free part of a claimed memory block. An attacker can leverage this vulnerability to escape the sandbox and execute arbitrary code on the host machine.",
  "id": "PYSEC-2021-868",
  "modified": "2022-01-07T19:23:22.112610Z",
  "published": "2021-12-26T05:15:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://gist.github.com/jwang-a/cb4b6e9551457aa299066076b836a2cd"
    },
    {
      "type": "WEB",
      "url": "https://github.com/unicorn-engine/unicorn/compare/2.0.0-rc4...2.0.0-rc5"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jwang-a/CTF/blob/master/MyChallenges/Pwn/Unicorns_Aisle/UnicornsAisle.pdf"
    },
    {
      "type": "FIX",
      "url": "https://github.com/unicorn-engine/unicorn/commit/c733bbada356b0373fa8aa72c044574bb855fd24"
    },
    {
      "type": "WEB",
      "url": "https://www.unicorn-engine.org/changelog/"
    }
  ]
}

CVE-2021-44078 (GCVE-0-2021-44078)

Vulnerability from cvelistv5 – Published: 2021-12-26 04:28 – Updated: 2024-08-04 04:10

Summary

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://www.unicorn-engine.org/changelog/	x_refsource_MISC
	https://gist.github.com/jwang-a/cb4b6e9551457aa29…	x_refsource_MISC
	https://github.com/unicorn-engine/unicorn/commit/…	x_refsource_MISC
	https://github.com/jwang-a/CTF/blob/master/MyChal…	x_refsource_MISC
	https://github.com/unicorn-engine/unicorn/compare…	x_refsource_CONFIRM

Show details on NVD website

JSON

To clipboard

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}

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.

Action not permitted

PYSEC-2021-868

CVE-2021-44078 (GCVE-0-2021-44078)

Tags

Sightings

Nomenclature