CVE-2024-43374
Vulnerability from cvelistv5
Published
2024-08-15 23:47
Modified
2024-09-20 16:03
Severity ?
EPSS score ?
Summary
The UNIX editor Vim prior to version 9.1.0678 has a use-after-free error in argument list handling. When adding a new file to the argument list, this triggers `Buf*` autocommands. If in such an autocommand the buffer that was just opened is closed (including the window where it is shown), this causes the window structure to be freed which contains a reference to the argument list that we are actually modifying. Once the autocommands are completed, the references to the window and argument list are no longer valid and as such cause an use-after-free. Impact is low since the user must either intentionally add some unusual autocommands that wipe a buffer during creation (either manually or by sourcing a malicious plugin), but it will crash Vim. The issue has been fixed as of Vim patch v9.1.0678.
References
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When adding a new file to the argument list, this triggers `Buf*` autocommands. If in such an autocommand the buffer that was just opened is closed (including the window where it is shown), this causes the window structure to be freed which contains a reference to the argument list that we are actually modifying. Once the autocommands are completed, the references to the window and argument list are no longer valid and as such cause an use-after-free. Impact is low since the user must either intentionally add some unusual autocommands that wipe a buffer during creation (either manually or by sourcing a malicious plugin), but it will crash Vim. The issue has been fixed as of Vim patch v9.1.0678." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 4.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L", "version": "3.1" } } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-416", "description": "CWE-416: Use After Free", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2024-08-15T23:47:38.255Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M" }, "references": [ { "name": "https://github.com/vim/vim/security/advisories/GHSA-2w8m-443v-cgvw", "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/vim/vim/security/advisories/GHSA-2w8m-443v-cgvw" }, { "name": "https://github.com/vim/vim/commit/0a6e57b09bc8c76691b367a5babfb79b31b770e8", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/vim/vim/commit/0a6e57b09bc8c76691b367a5babfb79b31b770e8" } ], "source": { "advisory": "GHSA-2w8m-443v-cgvw", "discovery": "UNKNOWN" }, "title": "Vim heap-use-after-free in src/arglist.c:207" } }, "cveMetadata": { "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2024-43374", "datePublished": "2024-08-15T23:47:38.255Z", "dateReserved": "2024-08-09T14:23:55.514Z", "dateUpdated": "2024-09-20T16:03:11.152Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2024-43374\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2024-08-16T02:15:17.687\",\"lastModified\":\"2024-11-21T09:35:23.467\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The UNIX editor Vim prior to version 9.1.0678 has a use-after-free error in argument list handling. When adding a new file to the argument list, this triggers `Buf*` autocommands. If in such an autocommand the buffer that was just opened is closed (including the window where it is shown), this causes the window structure to be freed which contains a reference to the argument list that we are actually modifying. Once the autocommands are completed, the references to the window and argument list are no longer valid and as such cause an use-after-free. Impact is low since the user must either intentionally add some unusual autocommands that wipe a buffer during creation (either manually or by sourcing a malicious plugin), but it will crash Vim. The issue has been fixed as of Vim patch v9.1.0678.\"},{\"lang\":\"es\",\"value\":\" El editor UNIX Vim anterior a la versi\u00f3n 9.1.0678 tiene un error de use-after-free en el manejo de la lista de argumentos. Al agregar un nuevo archivo a la lista de argumentos, esto activa los comandos autom\u00e1ticos `Buf*`. Si en dicho autocomando se cierra el b\u00fafer que se acaba de abrir (incluida la ventana donde se muestra), esto hace que se libere la estructura de la ventana que contiene una referencia a la lista de argumentos que actualmente estamos modificando. Una vez que se completan los comandos autom\u00e1ticos, las referencias a la ventana y la lista de argumentos ya no son v\u00e1lidas y, como tales, provocan un uuse-after-free. El impacto es bajo ya que el usuario debe agregar intencionalmente algunos comandos autom\u00e1ticos inusuales que borran un b\u00fafer durante la creaci\u00f3n (ya sea manualmente o obteniendo un complemento malicioso), pero Vim fallar\u00e1. El problema se solucion\u00f3 a partir del parche Vim v9.1.0678.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L\",\"baseScore\":4.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":1.0,\"impactScore\":3.4}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"references\":[{\"url\":\"https://github.com/vim/vim/commit/0a6e57b09bc8c76691b367a5babfb79b31b770e8\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/vim/vim/security/advisories/GHSA-2w8m-443v-cgvw\",\"source\":\"security-advisories@github.com\"},{\"url\":\"http://www.openwall.com/lists/oss-security/2024/08/15/6\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://security.netapp.com/advisory/ntap-20240920-0004/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}" } }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.