CVE-2021-46965 - OpenCVE

In the Linux kernel, the following vulnerability has been resolved: mtd: physmap: physmap-bt1-rom: Fix unintentional stack access Cast &data to (char *) in order to avoid unintentionally accessing the stack. Notice that data is of type u32, so any increment to &data will be in the order of 4-byte chunks, and this piece of code is actually intended to be a byte offset. Addresses-Coverity-ID: 1497765 ("Out-of-bounds access")

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

No data.

No data.

No data.

References

Link	Providers
https://git.kernel.org/stable/c/34ec706bf0b7c4ca249a729c1bcb91f706c7a7be
https://git.kernel.org/stable/c/4d786870e3262ec098a3b4ed10b895176bc66ecb
https://git.kernel.org/stable/c/4e4ebb827bf09311469ffd9d0c14ed40ed9747aa
https://git.kernel.org/stable/c/683313993dbe1651c7aa00bb42a041d70e914925
https://lore.kernel.org/linux-cve-announce/2024022719-CVE-2021-46965-3b74@gregkh/T/#u
https://nvd.nist.gov/vuln/detail/CVE-2021-46965
https://www.cve.org/CVERecord?id=CVE-2021-46965

History

Mon, 04 Nov 2024 12:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-02-27T18:47:03.022Z

Updated: 2024-11-04T11:56:47.594Z

Reserved: 2024-02-27T18:42:55.942Z

Link: CVE-2021-46965

Vulnrichment

Updated: 2024-08-04T05:17:42.990Z

NVD

Status : Awaiting Analysis

Published: 2024-02-27T19:04:07.087

Modified: 2024-02-28T14:06:45.783

Link: CVE-2021-46965

Redhat

Severity : Low

Publid Date: 2024-02-27T00:00:00Z

Links: CVE-2021-46965 - Bugzilla

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2021-46965", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-27T18:42:55.942Z", "datePublished": "2024-02-27T18:47:03.022Z", "dateUpdated": "2024-11-04T11:56:47.594Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-04T11:56:47.594Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: physmap: physmap-bt1-rom: Fix unintentional stack access\n\nCast &data to (char *) in order to avoid unintentionally accessing\nthe stack.\n\nNotice that data is of type u32, so any increment to &data\nwill be in the order of 4-byte chunks, and this piece of code\nis actually intended to be a byte offset.\n\nAddresses-Coverity-ID: 1497765 (\"Out-of-bounds access\")"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/mtd/maps/physmap-bt1-rom.c"], "versions": [{"version": "b3e79e7682e0", "lessThan": "34ec706bf0b7", "status": "affected", "versionType": "git"}, {"version": "b3e79e7682e0", "lessThan": "4e4ebb827bf0", "status": "affected", "versionType": "git"}, {"version": "b3e79e7682e0", "lessThan": "4d786870e326", "status": "affected", "versionType": "git"}, {"version": "b3e79e7682e0", "lessThan": "683313993dbe", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/mtd/maps/physmap-bt1-rom.c"], "versions": [{"version": "5.10", "status": "affected"}, {"version": "0", "lessThan": "5.10", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.36", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.11.20", "lessThanOrEqual": "5.11.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.12.3", "lessThanOrEqual": "5.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.13", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/34ec706bf0b7c4ca249a729c1bcb91f706c7a7be"}, {"url": "https://git.kernel.org/stable/c/4e4ebb827bf09311469ffd9d0c14ed40ed9747aa"}, {"url": "https://git.kernel.org/stable/c/4d786870e3262ec098a3b4ed10b895176bc66ecb"}, {"url": "https://git.kernel.org/stable/c/683313993dbe1651c7aa00bb42a041d70e914925"}], "title": "mtd: physmap: physmap-bt1-rom: Fix unintentional stack access", "x_generator": {"engine": "bippy-9e1c9544281a"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-46965", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-02-27T19:38:51.925558Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:13:13.079Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:17:42.990Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/34ec706bf0b7c4ca249a729c1bcb91f706c7a7be", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/4e4ebb827bf09311469ffd9d0c14ed40ed9747aa", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/4d786870e3262ec098a3b4ed10b895176bc66ecb", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/683313993dbe1651c7aa00bb42a041d70e914925", "tags": ["x_transferred"]}]}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/34ec706bf0b7c4ca249a729c1bcb91f706c7a7be", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/4e4ebb827bf09311469ffd9d0c14ed40ed9747aa", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/4d786870e3262ec098a3b4ed10b895176bc66ecb", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/683313993dbe1651c7aa00bb42a041d70e914925", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:17:42.990Z"}}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-46965", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-02-27T19:38:51.925558Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-05-23T19:01:13.480Z"}, "title": "CISA ADP Vulnrichment"}], "cna": {"title": "mtd: physmap: physmap-bt1-rom: Fix unintentional stack access", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "b3e79e7682e0", "lessThan": "34ec706bf0b7", "versionType": "git"}, {"status": "affected", "version": "b3e79e7682e0", "lessThan": "4e4ebb827bf0", "versionType": "git"}, {"status": "affected", "version": "b3e79e7682e0", "lessThan": "4d786870e326", "versionType": "git"}, {"status": "affected", "version": "b3e79e7682e0", "lessThan": "683313993dbe", "versionType": "git"}], "programFiles": ["drivers/mtd/maps/physmap-bt1-rom.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.10"}, {"status": "unaffected", "version": "0", "lessThan": "5.10", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.36", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.11.20", "versionType": "semver", "lessThanOrEqual": "5.11.*"}, {"status": "unaffected", "version": "5.12.3", "versionType": "semver", "lessThanOrEqual": "5.12.*"}, {"status": "unaffected", "version": "5.13", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/mtd/maps/physmap-bt1-rom.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/34ec706bf0b7c4ca249a729c1bcb91f706c7a7be"}, {"url": "https://git.kernel.org/stable/c/4e4ebb827bf09311469ffd9d0c14ed40ed9747aa"}, {"url": "https://git.kernel.org/stable/c/4d786870e3262ec098a3b4ed10b895176bc66ecb"}, {"url": "https://git.kernel.org/stable/c/683313993dbe1651c7aa00bb42a041d70e914925"}], "x_generator": {"engine": "bippy-9e1c9544281a"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: physmap: physmap-bt1-rom: Fix unintentional stack access\n\nCast &data to (char *) in order to avoid unintentionally accessing\nthe stack.\n\nNotice that data is of type u32, so any increment to &data\nwill be in the order of 4-byte chunks, and this piece of code\nis actually intended to be a byte offset.\n\nAddresses-Coverity-ID: 1497765 (\"Out-of-bounds access\")"}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-04T11:56:47.594Z"}}}, "cveMetadata": {"cveId": "CVE-2021-46965", "state": "PUBLISHED", "dateUpdated": "2024-11-04T11:56:47.594Z", "dateReserved": "2024-02-27T18:42:55.942Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-02-27T18:47:03.022Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"bugzilla": {"description": "kernel: mtd: physmap: physmap-bt1-rom: Fix unintentional stack access", "id": "2266812", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2266812"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmtd: physmap: physmap-bt1-rom: Fix unintentional stack access\nCast &data to (char *) in order to avoid unintentionally accessing\nthe stack.\nNotice that data is of type u32, so any increment to &data\nwill be in the order of 4-byte chunks, and this piece of code\nis actually intended to be a byte offset.\nAddresses-Coverity-ID: 1497765 (\"Out-of-bounds access\")"], "name": "CVE-2021-46965", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-02-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-46965\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-46965\nhttps://lore.kernel.org/linux-cve-announce/2024022719-CVE-2021-46965-3b74@gregkh/T/#u"], "statement": "No Red Hat Products are affected by this vulnerability.", "threat_severity": "Low", "upstream_fix": "kernel 5.10.36, kernel 5.11.20, kernel 5.12.3, kernel 5.13"}