{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2023-52974", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-03-27T16:40:15.737Z", "datePublished": "2025-03-27T16:43:13.792Z", "dateUpdated": "2026-08-05T09:12:12.182Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T09:12:12.182Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: iscsi_tcp: Fix UAF during login when accessing the shost ipaddress\n\nIf during iscsi_sw_tcp_session_create() iscsi_tcp_r2tpool_alloc() fails,\nuserspace could be accessing the host's ipaddress attr. If we then free the\nsession via iscsi_session_teardown() while userspace is still accessing the\nsession we will hit a use after free bug.\n\nSet the tcp_sw_host->session after we have completed session creation and\ncan no longer fail." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The bug is reached via local iSCSI initiator session creation (NETLINK_ISCSI) and concurrent local sysfs reads of the host ipaddress attribute, not by processing packets from a remote peer.\nAC:L - The attacker can induce memory pressure so iscsi_tcp_r2tpool_alloc() fails and concurrently hammer the world-readable sysfs ipaddress path, controlling the reader side of the race (and both sides if also creating sessions).\nPR:L - show_host_param_ISCSI_HOST_PARAM_IPADDRESS is S_IRUGO with no capability check, so an unprivileged local user can trigger the UAF while iscsid performs session create; CAP_SYS_ADMIN is only required for the netlink create side, not the sysfs exploit path.\nUI:N - No separate victim user action is required; the attacker only needs to read sysfs while session creation/teardown occurs on the system.\nS:U - This is a standard in-kernel UAF/privilege-escalation impact within the same host security authority, with no VM, IOMMU, or other cross-boundary escape.\nC:H - The UAF lets userspace operate on a freed iscsi_session (including lock and field access), which can be turned into an arbitrary kernel read via heap reuse.\nI:H - The UAF path takes spin_lock_bh on freed session memory (write to freed object), enabling heap spraying and control-flow hijacking primitives.\nA:H - Dereferencing/locking the freed session causes kernel oops/panic as demonstrated by the related KASAN UAF report, so availability impact is high." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/scsi/iscsi_tcp.c" ], "versions": [ { "version": "a79af8a64d395bd89de8695a5ea5e1a7f01f02a8", "lessThan": "496af9d3682ed4c28fb734342a09e6cc0c056ea4", "status": "affected", "versionType": "git" }, { "version": "a79af8a64d395bd89de8695a5ea5e1a7f01f02a8", "lessThan": "6abd4698f4c8a78e7bbfc421205c060c199554a0", "status": "affected", "versionType": "git" }, { "version": "a79af8a64d395bd89de8695a5ea5e1a7f01f02a8", "lessThan": "d4d765f4761f9e3a2d62992f825aeee593bcb6b9", "status": "affected", "versionType": "git" }, { "version": "a79af8a64d395bd89de8695a5ea5e1a7f01f02a8", "lessThan": "9758ffe1c07b86aefd7ca8e40d9a461293427ca0", "status": "affected", "versionType": "git" }, { "version": "a79af8a64d395bd89de8695a5ea5e1a7f01f02a8", "lessThan": "0aaabdb900c7415caa2006ef580322f7eac5f6b6", "status": "affected", "versionType": "git" }, { "version": "a79af8a64d395bd89de8695a5ea5e1a7f01f02a8", "lessThan": "61e43ebfd243bcbad11be26bd921723027b77441", "status": "affected", "versionType": "git" }, { "version": "a79af8a64d395bd89de8695a5ea5e1a7f01f02a8", "lessThan": "f484a794e4ee2a9ce61f52a78e810ac45f3fe3b3", "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/scsi/iscsi_tcp.c" ], "versions": [ { "version": "2.6.39", "status": "affected" }, { "version": "0", "lessThan": "2.6.39", "status": "unaffected", "versionType": "semver" }, { "version": "4.14.306", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.273", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.232", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.168", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.93", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.11", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "4.14.306" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "4.19.273" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "5.4.232" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "5.10.168" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "5.15.93" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "6.1.11" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "6.2" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/496af9d3682ed4c28fb734342a09e6cc0c056ea4" }, { "url": "https://git.kernel.org/stable/c/6abd4698f4c8a78e7bbfc421205c060c199554a0" }, { "url": "https://git.kernel.org/stable/c/d4d765f4761f9e3a2d62992f825aeee593bcb6b9" }, { "url": "https://git.kernel.org/stable/c/9758ffe1c07b86aefd7ca8e40d9a461293427ca0" }, { "url": "https://git.kernel.org/stable/c/0aaabdb900c7415caa2006ef580322f7eac5f6b6" }, { "url": "https://git.kernel.org/stable/c/61e43ebfd243bcbad11be26bd921723027b77441" }, { "url": "https://git.kernel.org/stable/c/f484a794e4ee2a9ce61f52a78e810ac45f3fe3b3" } ], "title": "scsi: iscsi_tcp: Fix UAF during login when accessing the shost ipaddress", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2023-52974", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "version": "2.0.3", "timestamp": "2025-03-27T16:59:50.791219Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-03-27T17:08:22.573Z" } } ] } }