gsd-2023-0461
Vulnerability from gsd
Modified
2023-12-13 01:20
Details
There is a use-after-free vulnerability in the Linux Kernel which can be exploited to achieve local privilege escalation. To reach the vulnerability kernel configuration flag CONFIG_TLS or CONFIG_XFRM_ESPINTCP has to be configured, but the operation does not require any privilege.
There is a use-after-free bug of icsk_ulp_data of a struct inet_connection_sock.
When CONFIG_TLS is enabled, user can install a tls context (struct tls_context) on a connected tcp socket. The context is not cleared if this socket is disconnected and reused as a listener. If a new socket is created from the listener, the context is inherited and vulnerable.
The setsockopt TCP_ULP operation does not require any privilege.
We recommend upgrading past commit 2c02d41d71f90a5168391b6a5f2954112ba2307c
Aliases
Aliases
{ "GSD": { "alias": "CVE-2023-0461", "id": "GSD-2023-0461", "references": [ "https://www.suse.com/security/cve/CVE-2023-0461.html", "https://ubuntu.com/security/CVE-2023-0461" ] }, "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2023-0461" ], "details": "There is a use-after-free vulnerability in the Linux Kernel which can be exploited to achieve local privilege escalation. To reach the vulnerability kernel configuration flag CONFIG_TLS\u00a0or CONFIG_XFRM_ESPINTCP\u00a0has to be configured, but the operation does not require any privilege.\n\nThere is a use-after-free bug of icsk_ulp_data\u00a0of a struct inet_connection_sock.\n\nWhen CONFIG_TLS\u00a0is enabled, user can install a tls context (struct tls_context) on a connected tcp socket. The context is not cleared if this socket is disconnected and reused as a listener. If a new socket is created from the listener, the context is inherited and vulnerable.\n\nThe setsockopt\u00a0TCP_ULP\u00a0operation does not require any privilege.\n\nWe recommend upgrading past commit\u00a02c02d41d71f90a5168391b6a5f2954112ba2307c", "id": "GSD-2023-0461", "modified": "2023-12-13T01:20:23.114918Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "security@google.com", "ID": "CVE-2023-0461", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "Linux Kernel", "version": { "version_data": [ { "version_affected": "\u003c", "version_name": "0", "version_value": "2c02d41d71f90a5168391b6a5f2954112ba2307c" } ] } } ] }, "vendor_name": "Linux" } ] } }, "credits": [ { "lang": "en", "value": "slipper" } ], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "There is a use-after-free vulnerability in the Linux Kernel which can be exploited to achieve local privilege escalation. To reach the vulnerability kernel configuration flag CONFIG_TLS\u00a0or CONFIG_XFRM_ESPINTCP\u00a0has to be configured, but the operation does not require any privilege.\n\nThere is a use-after-free bug of icsk_ulp_data\u00a0of a struct inet_connection_sock.\n\nWhen CONFIG_TLS\u00a0is enabled, user can install a tls context (struct tls_context) on a connected tcp socket. The context is not cleared if this socket is disconnected and reused as a listener. If a new socket is created from the listener, the context is inherited and vulnerable.\n\nThe setsockopt\u00a0TCP_ULP\u00a0operation does not require any privilege.\n\nWe recommend upgrading past commit\u00a02c02d41d71f90a5168391b6a5f2954112ba2307c" } ] }, "generator": { "engine": "Vulnogram 0.1.0-dev" }, "impact": { "cvss": [ { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "cweId": "CWE-416", "lang": "eng", "value": "CWE-416 Use After Free" } ] } ] }, "references": { "reference_data": [ { "name": "https://kernel.dance/#2c02d41d71f90a5168391b6a5f2954112ba2307c", "refsource": "MISC", "url": "https://kernel.dance/#2c02d41d71f90a5168391b6a5f2954112ba2307c" }, { "name": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2c02d41d71f90a5168391b6a5f2954112ba2307c", "refsource": "MISC", "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2c02d41d71f90a5168391b6a5f2954112ba2307c" }, { "name": "https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html", "refsource": "MISC", "url": "https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html" }, { "name": "https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html", "refsource": "MISC", "url": "https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html" } ] }, "source": { "discovery": "EXTERNAL" } }, "nvd.nist.gov": { "configurations": { "CVE_data_version": "4.0", "nodes": [ { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "6.0.19", "versionStartIncluding": "6.0", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "5.4.229", "versionStartIncluding": "5.4", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "5.15.88", "versionStartIncluding": "5.15", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "5.10.163", "versionStartIncluding": "5.10", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.19.270", "versionStartIncluding": "4.19", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.14.303", "versionStartIncluding": "4.13.0", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "6.1.5", "versionStartIncluding": "6.1", "vulnerable": true } ], "operator": "OR" } ] }, "cve": { "CVE_data_meta": { "ASSIGNER": "security@google.com", "ID": "CVE-2023-0461" }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "en", "value": "There is a use-after-free vulnerability in the Linux Kernel which can be exploited to achieve local privilege escalation. To reach the vulnerability kernel configuration flag CONFIG_TLS\u00a0or CONFIG_XFRM_ESPINTCP\u00a0has to be configured, but the operation does not require any privilege.\n\nThere is a use-after-free bug of icsk_ulp_data\u00a0of a struct inet_connection_sock.\n\nWhen CONFIG_TLS\u00a0is enabled, user can install a tls context (struct tls_context) on a connected tcp socket. The context is not cleared if this socket is disconnected and reused as a listener. If a new socket is created from the listener, the context is inherited and vulnerable.\n\nThe setsockopt\u00a0TCP_ULP\u00a0operation does not require any privilege.\n\nWe recommend upgrading past commit\u00a02c02d41d71f90a5168391b6a5f2954112ba2307c" } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "en", "value": "CWE-416" } ] } ] }, "references": { "reference_data": [ { "name": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2c02d41d71f90a5168391b6a5f2954112ba2307c", "refsource": "MISC", "tags": [ "Mailing List", "Patch" ], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2c02d41d71f90a5168391b6a5f2954112ba2307c" }, { "name": "https://kernel.dance/#2c02d41d71f90a5168391b6a5f2954112ba2307c", "refsource": "MISC", "tags": [ "Patch" ], "url": "https://kernel.dance/#2c02d41d71f90a5168391b6a5f2954112ba2307c" }, { "name": "https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html", "refsource": "MISC", "tags": [ "Third Party Advisory" ], "url": "https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html" }, { "name": "https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html", "refsource": "MISC", "tags": [ "Third Party Advisory" ], "url": "https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html" } ] } }, "impact": { "baseMetricV3": { "cvssV3": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "exploitabilityScore": 1.8, "impactScore": 5.9 } }, "lastModifiedDate": "2023-06-06T19:16Z", "publishedDate": "2023-02-28T15:15Z" } } }
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Patched: This vulnerability was successfully patched by the user reporting the sighting.
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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.