ghsa-cw63-cpqx-9vx9
Vulnerability from github
Published
2022-05-13 01:42
Modified
2022-05-13 01:42
Severity
Details
The bio_map_user_iov and bio_unmap_user functions in block/bio.c in the Linux kernel before 4.13.8 do unbalanced refcounting when a SCSI I/O vector has small consecutive buffers belonging to the same page. The bio_add_pc_page function merges them into one, but the page reference is never dropped. This causes a memory leak and possible system lockup (exploitable against the host OS by a guest OS user, if a SCSI disk is passed through to a virtual machine) due to an out-of-memory condition.
{
"affected": [],
"aliases": [
"CVE-2017-12190"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-772"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-11-22T18:29:00Z",
"severity": "MODERATE"
},
"details": "The bio_map_user_iov and bio_unmap_user functions in block/bio.c in the Linux kernel before 4.13.8 do unbalanced refcounting when a SCSI I/O vector has small consecutive buffers belonging to the same page. The bio_add_pc_page function merges them into one, but the page reference is never dropped. This causes a memory leak and possible system lockup (exploitable against the host OS by a guest OS user, if a SCSI disk is passed through to a virtual machine) due to an out-of-memory condition.",
"id": "GHSA-cw63-cpqx-9vx9",
"modified": "2022-05-13T01:42:38Z",
"published": "2022-05-13T01:42:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-12190"
},
{
"type": "WEB",
"url": "https://github.com/torvalds/linux/commit/2b04e8f6bbb196cab4b232af0f8d48ff2c7a8058"
},
{
"type": "WEB",
"url": "https://github.com/torvalds/linux/commit/95d78c28b5a85bacbc29b8dba7c04babb9b0d467"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3583-2"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3583-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3582-2"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3582-1"
},
{
"type": "WEB",
"url": "https://support.f5.com/csp/article/K93472064?utm_source=f5support\u0026amp;utm_medium=RSS"
},
{
"type": "WEB",
"url": "https://support.f5.com/csp/article/K93472064?utm_source=f5support\u0026amp%3Butm_medium=RSS"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2017/12/msg00004.html"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1495089"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2017-12190"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:1190"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:1170"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:1854"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:1062"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:0676"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:0654"
},
{
"type": "WEB",
"url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2b04e8f6bbb196cab4b232af0f8d48ff2c7a8058"
},
{
"type": "WEB",
"url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=95d78c28b5a85bacbc29b8dba7c04babb9b0d467"
},
{
"type": "WEB",
"url": "http://seclists.org/oss-sec/2017/q4/52"
},
{
"type": "WEB",
"url": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.8"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/101911"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
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