ghsa-7w4w-2hxm-8cc6
Vulnerability from github
Published
2022-05-24 16:44
Modified
2022-12-01 00:30
Severity ?
Details
A race condition in perf_event_open() allows local attackers to leak sensitive data from setuid programs. As no relevant locks (in particular the cred_guard_mutex) are held during the ptrace_may_access() call, it is possible for the specified target task to perform an execve() syscall with setuid execution before perf_event_alloc() actually attaches to it, allowing an attacker to bypass the ptrace_may_access() check and the perf_event_exit_task(current) call that is performed in install_exec_creds() during privileged execve() calls. This issue affects kernel versions before 4.8.
{ "affected": [], "aliases": [ "CVE-2019-3901" ], "database_specific": { "cwe_ids": [ "CWE-667" ], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2019-04-22T16:29:00Z", "severity": "MODERATE" }, "details": "A race condition in perf_event_open() allows local attackers to leak sensitive data from setuid programs. As no relevant locks (in particular the cred_guard_mutex) are held during the ptrace_may_access() call, it is possible for the specified target task to perform an execve() syscall with setuid execution before perf_event_alloc() actually attaches to it, allowing an attacker to bypass the ptrace_may_access() check and the perf_event_exit_task(current) call that is performed in install_exec_creds() during privileged execve() calls. This issue affects kernel versions before 4.8.", "id": "GHSA-7w4w-2hxm-8cc6", "modified": "2022-12-01T00:30:42Z", "published": "2022-05-24T16:44:08Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-3901" }, { "type": "WEB", "url": "https://access.redhat.com/errata/RHSA-2020:1016" }, { "type": "WEB", "url": "https://access.redhat.com/errata/RHSA-2020:1070" }, { "type": "WEB", "url": "https://access.redhat.com/errata/RHSA-2020:2522" }, { "type": "WEB", "url": "https://access.redhat.com/errata/RHSA-2020:2851" }, { "type": "WEB", "url": "https://access.redhat.com/security/cve/CVE-2019-3901" }, { "type": "WEB", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1701245" }, { "type": "WEB", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3901" }, { "type": "WEB", "url": "https://lists.debian.org/debian-lts-announce/2019/05/msg00041.html" }, { "type": "WEB", "url": "https://lists.debian.org/debian-lts-announce/2019/05/msg00042.html" }, { "type": "WEB", "url": "https://security.netapp.com/advisory/ntap-20190517-0005" }, { "type": "WEB", "url": "http://www.securityfocus.com/bid/89937" } ], "schema_version": "1.4.0", "severity": [ { "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N", "type": "CVSS_V3" } ] }
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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.