ghsa-7jw3-9qpg-fmp6
Vulnerability from github
Published
2022-05-24 17:35
Modified
2022-05-24 17:35
Severity
Details
An issue was discovered in the Linux kernel before 5.7.3, related to mm/gup.c and mm/huge_memory.c. The get_user_pages (aka gup) implementation, when used for a copy-on-write page, does not properly consider the semantics of read operations and therefore can grant unintended write access, aka CID-17839856fd58.
{
"affected": [],
"aliases": [
"CVE-2020-29374"
],
"database_specific": {
"cwe_ids": [
"CWE-362",
"CWE-863"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-11-28T07:15:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered in the Linux kernel before 5.7.3, related to mm/gup.c and mm/huge_memory.c. The get_user_pages (aka gup) implementation, when used for a copy-on-write page, does not properly consider the semantics of read operations and therefore can grant unintended write access, aka CID-17839856fd58.",
"id": "GHSA-7jw3-9qpg-fmp6",
"modified": "2022-05-24T17:35:04Z",
"published": "2022-05-24T17:35:04Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-29374"
},
{
"type": "WEB",
"url": "https://bugs.chromium.org/p/project-zero/issues/detail?id=2045"
},
{
"type": "WEB",
"url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=17839856fd588f4ab6b789f482ed3ffd7c403e1f"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20210115-0002"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2022/dsa-5096"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N",
"type": "CVSS_V3"
}
]
}
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