CVE-2022-49044 (GCVE-0-2022-49044)
Vulnerability from cvelistv5
Published
2025-02-26 01:54
Modified
2025-05-04 08:28
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: dm integrity: fix memory corruption when tag_size is less than digest size It is possible to set up dm-integrity in such a way that the "tag_size" parameter is less than the actual digest size. In this situation, a part of the digest beyond tag_size is ignored. In this case, dm-integrity would write beyond the end of the ic->recalc_tags array and corrupt memory. The corruption happened in integrity_recalc->integrity_sector_checksum->crypto_shash_final. Fix this corruption by increasing the tags array so that it has enough padding at the end to accomodate the loop in integrity_recalc() being able to write a full digest size for the last member of the tags array.
References
Impacted products
Vendor Product Version
Linux Linux Version: 7eada909bfd7ac90a4522e56aa3179d1fd68cd14
Version: 7eada909bfd7ac90a4522e56aa3179d1fd68cd14
Version: 7eada909bfd7ac90a4522e56aa3179d1fd68cd14
Version: 7eada909bfd7ac90a4522e56aa3179d1fd68cd14
Version: 7eada909bfd7ac90a4522e56aa3179d1fd68cd14
Version: 7eada909bfd7ac90a4522e56aa3179d1fd68cd14
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        "dateUpdated": "2025-05-04T08:28:33.434Z",
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The corruption happened in\\nintegrity_recalc-\u003eintegrity_sector_checksum-\u003ecrypto_shash_final.\\n\\nFix this corruption by increasing the tags array so that it has enough\\npadding at the end to accomodate the loop in integrity_recalc() being\\nable to write a full digest size for the last member of the tags\\narray.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: dm integrity: fix memory corrupts when tag_size is less than digest size Es posible configurar dm-integrity de tal manera que el par\u00e1metro \\\"tag_size\\\" sea menor que el tama\u00f1o real del resumen. En esta situaci\u00f3n, se ignora una parte del resumen m\u00e1s all\u00e1 de tag_size. En este caso, dm-integrity escribir\u00eda m\u00e1s all\u00e1 del final de la matriz ic-\u0026gt;recalc_tags y da\u00f1ar\u00eda la memoria. La corrupci\u00f3n ocurri\u00f3 en integrity_recalc-\u0026gt;integrity_sector_checksum-\u0026gt;crypto_shash_final. Corrija esta corrupci\u00f3n aumentando la matriz tags para que tenga suficiente relleno al final para acomodar el bucle en integrity_recalc() pudiendo escribir un tama\u00f1o de resumen completo para el \u00faltimo miembro de la matriz tags.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-787\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.12\",\"versionEndExcluding\":\"4.19.240\",\"matchCriteriaId\":\"EB21DB9B-679A-47AA-BA4D-91186F212BA7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.190\",\"matchCriteriaId\":\"E0ADBA6D-47D8-4518-8D10-9B9196DE680B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.112\",\"matchCriteriaId\":\"0460A5D2-3024-497A-B799-23E025B91972\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.35\",\"matchCriteriaId\":\"05ABCC3F-88A9-47F9-9D40-8665747B2E43\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"5.17.4\",\"matchCriteriaId\":\"E22C86CB-06CD-4D16-AB2A-F21EE8199262\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.18:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"6AD94161-84BB-42E6-9882-4FC0C42E9FC1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.18:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"7AB06DDF-3C2B-416D-B448-E990D8FF67A9\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/08c1af8f1c13bbf210f1760132f4df24d0ed46d6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4d485cf9b609709e45d5113e6e2b1b01254b2fe9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6a95d91c0b315c965198f6ab7dec7c94129e17e0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6b4bf97587ef6c1927a78934b700204920655123\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/7f84c937222944c03f4615ca4742df6bed0e5adf\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/cd02b2687d66f0a8e716384de4b9a0671331f1dc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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