ghsa-vfch-2fr8-r5c2
Vulnerability from github
Published
2022-08-25 00:00
Modified
2022-08-29 20:06
Severity ?
Details
A flaw was found in glibc. An off-by-one buffer overflow and underflow in getcwd() may lead to memory corruption when the size of the buffer is exactly 1. A local attacker who can control the input buffer and size passed to getcwd() in a setuid program could use this flaw to potentially execute arbitrary code and escalate their privileges on the system.
{ "affected": [], "aliases": [ "CVE-2021-3999" ], "database_specific": { "cwe_ids": [ "CWE-193" ], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2022-08-24T16:15:00Z", "severity": "HIGH" }, "details": "A flaw was found in glibc. An off-by-one buffer overflow and underflow in getcwd() may lead to memory corruption when the size of the buffer is exactly 1. A local attacker who can control the input buffer and size passed to getcwd() in a setuid program could use this flaw to potentially execute arbitrary code and escalate their privileges on the system.", "id": "GHSA-vfch-2fr8-r5c2", "modified": "2022-08-29T20:06:51Z", "published": "2022-08-25T00:00:27Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3999" }, { "type": "WEB", "url": "https://access.redhat.com/errata/RHSA-2022:0896" }, { "type": "WEB", "url": "https://access.redhat.com/security/cve/CVE-2021-3999" }, { "type": "WEB", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2024637" }, { "type": "WEB", "url": "https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html" }, { "type": "WEB", "url": "https://security-tracker.debian.org/tracker/CVE-2021-3999" }, { "type": "WEB", "url": "https://security.netapp.com/advisory/ntap-20221104-0001" }, { "type": "WEB", "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=28769" }, { "type": "WEB", "url": "https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=23e0e8f5f1fb5ed150253d986ecccdc90c2dcd5e" }, { "type": "WEB", "url": "https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=23e0e8f5f1fb5ed150253d986ecccdc90c2dcd5e" }, { "type": "WEB", "url": "https://www.openwall.com/lists/oss-security/2022/01/24/4" } ], "schema_version": "1.4.0", "severity": [ { "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "type": "CVSS_V3" } ] }
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- 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.