gsd-2021-3739
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
A NULL pointer dereference flaw was found in the btrfs_rm_device function in fs/btrfs/volumes.c in the Linux Kernel, where triggering the bug requires ‘CAP_SYS_ADMIN’. This flaw allows a local attacker to crash the system or leak kernel internal information. The highest threat from this vulnerability is to system availability.
Aliases
Aliases
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The highest threat from this vulnerability is to system availability.", "id": "GSD-2021-3739", "references": [ "https://www.suse.com/security/cve/CVE-2021-3739.html", "https://www.debian.org/security/2021/dsa-4978", "https://ubuntu.com/security/CVE-2021-3739", "https://advisories.mageia.org/CVE-2021-3739.html", "https://security.archlinux.org/CVE-2021-3739", "https://linux.oracle.com/cve/CVE-2021-3739.html" ] }, "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2021-3739" ], "details": "A NULL pointer dereference flaw was found in the btrfs_rm_device function in fs/btrfs/volumes.c in the Linux Kernel, where triggering the bug requires \u2018CAP_SYS_ADMIN\u2019. This flaw allows a local attacker to crash the system or leak kernel internal information. The highest threat from this vulnerability is to system availability.", "id": "GSD-2021-3739", "modified": "2023-12-13T01:23:34.306104Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "secalert@redhat.com", "ID": "CVE-2021-3739", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "kernel", "version": { "version_data": [ { "version_affected": "=", "version_value": "Fixed in v5.15-rc1 and above." } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "A NULL pointer dereference flaw was found in the btrfs_rm_device function in fs/btrfs/volumes.c in the Linux Kernel, where triggering the bug requires \u2018CAP_SYS_ADMIN\u2019. This flaw allows a local attacker to crash the system or leak kernel internal information. The highest threat from this vulnerability is to system availability." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "cweId": "CWE-476", "lang": "eng", "value": "CWE-476 - NULL Pointer Dereference" } ] } ] }, "references": { "reference_data": [ { "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1997958", "refsource": "MISC", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1997958" }, { "name": "https://ubuntu.com/security/CVE-2021-3739", "refsource": "MISC", "url": "https://ubuntu.com/security/CVE-2021-3739" }, { "name": "https://www.openwall.com/lists/oss-security/2021/08/25/3", "refsource": "MISC", "url": "https://www.openwall.com/lists/oss-security/2021/08/25/3" }, { "name": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e4571b8c5e9ffa1e85c0c671995bd4dcc5c75091", "refsource": "MISC", "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e4571b8c5e9ffa1e85c0c671995bd4dcc5c75091" }, { "name": 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This flaw allows a local attacker to crash the system or leak kernel internal information. 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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.