CVE-2021-47538 - OpenCVE

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix rxrpc_local leak in rxrpc_lookup_peer() Need to call rxrpc_put_local() for peer candidate before kfree() as it holds a ref to rxrpc_local. [DH: v2: Changed to abstract the peer freeing code out into a function]

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

No data.

No data.

No data.

References

Link	Providers
https://git.kernel.org/stable/c/3e70e3a72d80b16094faccbe438cd53761c3503a
https://git.kernel.org/stable/c/60f0b9c42cb80833a03ca57c1c8b078d716e71d1
https://git.kernel.org/stable/c/913c24af2d13a3fd304462916ee98e298d56bdce
https://git.kernel.org/stable/c/9469273e616ca8f1b6e3773c5019f21b4c8d828c
https://git.kernel.org/stable/c/beacff50edbd6c9659a6f15fc7f6126909fade29
https://lore.kernel.org/linux-cve-announce/2024052438-CVE-2021-47538-5639@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2021-47538
https://www.cve.org/CVERecord?id=CVE-2021-47538

History

No history.

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-05-24T15:09:45.959Z

Updated: 2024-08-04T05:39:59.621Z

Reserved: 2024-05-24T15:02:54.828Z

Link: CVE-2021-47538

Vulnrichment

Updated: 2024-08-04T05:39:59.621Z

NVD

Status : Awaiting Analysis

Published: 2024-05-24T15:15:17.750

Modified: 2024-05-24T18:09:20.027

Link: CVE-2021-47538

Redhat

Severity : Low

Publid Date: 2024-05-24T00:00:00Z

Links: CVE-2021-47538 - Bugzilla

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2021-47538", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-24T15:02:54.828Z", "datePublished": "2024-05-24T15:09:45.959Z", "dateUpdated": "2024-08-04T05:39:59.621Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-05-29T05:09:41.883Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: Fix rxrpc_local leak in rxrpc_lookup_peer()\n\nNeed to call rxrpc_put_local() for peer candidate before kfree() as it\nholds a ref to rxrpc_local.\n\n[DH: v2: Changed to abstract the peer freeing code out into a function]"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/rxrpc/peer_object.c"], "versions": [{"version": "e8e51ce79c15", "lessThan": "913c24af2d13", "status": "affected", "versionType": "git"}, {"version": "9ebeddef58c4", "lessThan": "3e70e3a72d80", "status": "affected", "versionType": "git"}, {"version": "9ebeddef58c4", "lessThan": "60f0b9c42cb8", "status": "affected", "versionType": "git"}, {"version": "9ebeddef58c4", "lessThan": "9469273e616c", "status": "affected", "versionType": "git"}, {"version": "9ebeddef58c4", "lessThan": "beacff50edbd", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/rxrpc/peer_object.c"], "versions": [{"version": "5.4", "status": "affected"}, {"version": "0", "lessThan": "5.4", "status": "unaffected", "versionType": "custom"}, {"version": "4.19.220", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "custom"}, {"version": "5.4.164", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "custom"}, {"version": "5.10.84", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "custom"}, {"version": "5.15.7", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "custom"}, {"version": "5.16", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/913c24af2d13a3fd304462916ee98e298d56bdce"}, {"url": "https://git.kernel.org/stable/c/3e70e3a72d80b16094faccbe438cd53761c3503a"}, {"url": "https://git.kernel.org/stable/c/60f0b9c42cb80833a03ca57c1c8b078d716e71d1"}, {"url": "https://git.kernel.org/stable/c/9469273e616ca8f1b6e3773c5019f21b4c8d828c"}, {"url": "https://git.kernel.org/stable/c/beacff50edbd6c9659a6f15fc7f6126909fade29"}], "title": "rxrpc: Fix rxrpc_local leak in rxrpc_lookup_peer()", "x_generator": {"engine": "bippy-a5840b7849dd"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-47538", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-05-24T19:15:07.366329Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:14:56.132Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:39:59.621Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/913c24af2d13a3fd304462916ee98e298d56bdce", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/3e70e3a72d80b16094faccbe438cd53761c3503a", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/60f0b9c42cb80833a03ca57c1c8b078d716e71d1", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/9469273e616ca8f1b6e3773c5019f21b4c8d828c", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/beacff50edbd6c9659a6f15fc7f6126909fade29", "tags": ["x_transferred"]}]}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/913c24af2d13a3fd304462916ee98e298d56bdce", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/3e70e3a72d80b16094faccbe438cd53761c3503a", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/60f0b9c42cb80833a03ca57c1c8b078d716e71d1", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/9469273e616ca8f1b6e3773c5019f21b4c8d828c", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/beacff50edbd6c9659a6f15fc7f6126909fade29", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:39:59.621Z"}}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-47538", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-05-24T19:15:07.366329Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-05-24T19:15:13.548Z"}, "title": "CISA ADP Vulnrichment"}], "cna": {"title": "rxrpc: Fix rxrpc_local leak in rxrpc_lookup_peer()", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "e8e51ce79c15", "lessThan": "913c24af2d13", "versionType": "git"}, {"status": "affected", "version": "9ebeddef58c4", "lessThan": "3e70e3a72d80", "versionType": "git"}, {"status": "affected", "version": "9ebeddef58c4", "lessThan": "60f0b9c42cb8", "versionType": "git"}, {"status": "affected", "version": "9ebeddef58c4", "lessThan": "9469273e616c", "versionType": "git"}, {"status": "affected", "version": "9ebeddef58c4", "lessThan": "beacff50edbd", "versionType": "git"}], "programFiles": ["net/rxrpc/peer_object.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.4"}, {"status": "unaffected", "version": "0", "lessThan": "5.4", "versionType": "custom"}, {"status": "unaffected", "version": "4.19.220", "versionType": "custom", "lessThanOrEqual": "4.19.*"}, {"status": "unaffected", "version": "5.4.164", "versionType": "custom", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.84", "versionType": "custom", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.7", "versionType": "custom", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "5.16", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/rxrpc/peer_object.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/913c24af2d13a3fd304462916ee98e298d56bdce"}, {"url": "https://git.kernel.org/stable/c/3e70e3a72d80b16094faccbe438cd53761c3503a"}, {"url": "https://git.kernel.org/stable/c/60f0b9c42cb80833a03ca57c1c8b078d716e71d1"}, {"url": "https://git.kernel.org/stable/c/9469273e616ca8f1b6e3773c5019f21b4c8d828c"}, {"url": "https://git.kernel.org/stable/c/beacff50edbd6c9659a6f15fc7f6126909fade29"}], "x_generator": {"engine": "bippy-a5840b7849dd"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: Fix rxrpc_local leak in rxrpc_lookup_peer()\n\nNeed to call rxrpc_put_local() for peer candidate before kfree() as it\nholds a ref to rxrpc_local.\n\n[DH: v2: Changed to abstract the peer freeing code out into a function]"}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-05-29T05:09:41.883Z"}}}, "cveMetadata": {"cveId": "CVE-2021-47538", "state": "PUBLISHED", "dateUpdated": "2024-08-04T05:39:59.621Z", "dateReserved": "2024-05-24T15:02:54.828Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-05-24T15:09:45.959Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}