CVE-2021-47539 - Vulnerability Details - OpenCVE

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix rxrpc_peer leak in rxrpc_look_up_bundle() Need to call rxrpc_put_peer() for bundle candidate before kfree() as it holds a ref to rxrpc_peer. [DH: v2: Changed to abstract out the bundle freeing code 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.

Exploitation none

Automatable no

Technical Impact partial

No data.

No data.

No data.

References

Link	Providers
https://git.kernel.org/stable/c/35b40f724c4ef0f683d94dab3af9ab38261d782b
https://git.kernel.org/stable/c/bc97458620e38961af9505cc060ad4cf5c9e4af7
https://git.kernel.org/stable/c/ca77fba821351190777b236ce749d7c4d353102e
https://lore.kernel.org/linux-cve-announce/2024052438-CVE-2021-47539-f0a6@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2021-47539
https://www.cve.org/CVERecord?id=CVE-2021-47539

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: 2024-05-24T15:09:46.609Z

Updated: 2024-12-19T07:44:26.938Z

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

Link: CVE-2021-47539

Vulnrichment

Updated: 2024-08-04T05:39:59.613Z

NVD

Status : Awaiting Analysis

Published: 2024-05-24T15:15:17.963

Modified: 2024-11-21T06:36:29.597

Link: CVE-2021-47539

Redhat

Severity : Low

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

Links: CVE-2021-47539 - Bugzilla

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2021-47539", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-24T15:02:54.828Z", "datePublished": "2024-05-24T15:09:46.609Z", "dateUpdated": "2024-12-19T07:44:26.938Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-12-19T07:44:26.938Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: Fix rxrpc_peer leak in rxrpc_look_up_bundle()\n\nNeed to call rxrpc_put_peer() for bundle candidate before kfree() as it\nholds a ref to rxrpc_peer.\n\n[DH: v2: Changed to abstract out the bundle freeing code 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/conn_client.c"], "versions": [{"version": "245500d853e9f20036cec7df4f6984ece4c6bf26", "lessThan": "35b40f724c4ef0f683d94dab3af9ab38261d782b", "status": "affected", "versionType": "git"}, {"version": "245500d853e9f20036cec7df4f6984ece4c6bf26", "lessThan": "bc97458620e38961af9505cc060ad4cf5c9e4af7", "status": "affected", "versionType": "git"}, {"version": "245500d853e9f20036cec7df4f6984ece4c6bf26", "lessThan": "ca77fba821351190777b236ce749d7c4d353102e", "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/conn_client.c"], "versions": [{"version": "5.10", "status": "affected"}, {"version": "0", "lessThan": "5.10", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.84", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.7", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.16", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/35b40f724c4ef0f683d94dab3af9ab38261d782b"}, {"url": "https://git.kernel.org/stable/c/bc97458620e38961af9505cc060ad4cf5c9e4af7"}, {"url": "https://git.kernel.org/stable/c/ca77fba821351190777b236ce749d7c4d353102e"}], "title": "rxrpc: Fix rxrpc_peer leak in rxrpc_look_up_bundle()", "x_generator": {"engine": "bippy-5f407fcff5a0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-06-10T18:53:02.140647Z", "id": "CVE-2021-47539", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-10T18:53:09.609Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:39:59.613Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/35b40f724c4ef0f683d94dab3af9ab38261d782b", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/bc97458620e38961af9505cc060ad4cf5c9e4af7", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/ca77fba821351190777b236ce749d7c4d353102e", "tags": ["x_transferred"]}]}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/35b40f724c4ef0f683d94dab3af9ab38261d782b", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/bc97458620e38961af9505cc060ad4cf5c9e4af7", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/ca77fba821351190777b236ce749d7c4d353102e", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:39:59.613Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-47539", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-06-10T18:53:02.140647Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-10T18:53:06.880Z"}}], "cna": {"title": "rxrpc: Fix rxrpc_peer leak in rxrpc_look_up_bundle()", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "245500d853e9", "lessThan": "35b40f724c4e", "versionType": "git"}, {"status": "affected", "version": "245500d853e9", "lessThan": "bc97458620e3", "versionType": "git"}, {"status": "affected", "version": "245500d853e9", "lessThan": "ca77fba82135", "versionType": "git"}], "programFiles": ["net/rxrpc/conn_client.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": "5.10.84", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.7", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "5.16", "versionType": "semver", "lessThanOrEqual": "*"}], "programFiles": ["net/rxrpc/conn_client.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/35b40f724c4ef0f683d94dab3af9ab38261d782b"}, {"url": "https://git.kernel.org/stable/c/bc97458620e38961af9505cc060ad4cf5c9e4af7"}, {"url": "https://git.kernel.org/stable/c/ca77fba821351190777b236ce749d7c4d353102e"}], "x_generator": {"engine": "bippy-c8e10e5f6187"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: Fix rxrpc_peer leak in rxrpc_look_up_bundle()\n\nNeed to call rxrpc_put_peer() for bundle candidate before kfree() as it\nholds a ref to rxrpc_peer.\n\n[DH: v2: Changed to abstract out the bundle freeing code into a function]"}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-04T11:43:15.618Z"}}}, "cveMetadata": {"cveId": "CVE-2021-47539", "state": "PUBLISHED", "dateUpdated": "2024-11-04T11:43:15.618Z", "dateReserved": "2024-05-24T15:02:54.828Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-05-24T15:09:46.609Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}