{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-26739", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-19T14:20:24.166Z", "datePublished": "2024-04-03T17:00:24.879Z", "dateUpdated": "2024-11-05T09:14:51.142Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-05T09:14:51.142Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: act_mirred: don't override retval if we already lost the skb\n\nIf we're redirecting the skb, and haven't called tcf_mirred_forward(),\nyet, we need to tell the core to drop the skb by setting the retcode\nto SHOT. If we have called tcf_mirred_forward(), however, the skb\nis out of our hands and returning SHOT will lead to UaF.\n\nMove the retval override to the error path which actually need it."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/sched/act_mirred.c"], "versions": [{"version": "e5cf1baf92cb", "lessThan": "28cdbbd38a44", "status": "affected", "versionType": "git"}, {"version": "e5cf1baf92cb", "lessThan": "f4e294bbdca8", "status": "affected", "versionType": "git"}, {"version": "e5cf1baf92cb", "lessThan": "166c2c8a6a4d", "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/sched/act_mirred.c"], "versions": [{"version": "4.19", "status": "affected"}, {"version": "0", "lessThan": "4.19", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.19", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.7.7", "lessThanOrEqual": "6.7.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.8", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/28cdbbd38a4413b8eff53399b3f872fd4e80db9d"}, {"url": "https://git.kernel.org/stable/c/f4e294bbdca8ac8757db436fc82214f3882fc7e7"}, {"url": "https://git.kernel.org/stable/c/166c2c8a6a4dc2e4ceba9e10cfe81c3e469e3210"}], "title": "net/sched: act_mirred: don't override retval if we already lost the skb", "x_generator": {"engine": "bippy-9e1c9544281a"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T00:14:13.024Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/28cdbbd38a4413b8eff53399b3f872fd4e80db9d", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/f4e294bbdca8ac8757db436fc82214f3882fc7e7", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/166c2c8a6a4dc2e4ceba9e10cfe81c3e469e3210", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-26739", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T15:51:53.930424Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:33:18.399Z"}}]}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: act_mirred: don't override retval if we already lost the skb\n\nIf we're redirecting the skb, and haven't called tcf_mirred_forward(),\nyet, we need to tell the core to drop the skb by setting the retcode\nto SHOT. If we have called tcf_mirred_forward(), however, the skb\nis out of our hands and returning SHOT will lead to UaF.\n\nMove the retval override to the error path which actually need it."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/sched: act_mirred: no anula retval si ya perdimos el skb. Si estamos redirigiendo el skb y a\u00fan no hemos llamado a tcf_mirred_forward(), necesitamos para decirle al n\u00facleo que suelte el skb configurando el c\u00f3digo de retecci\u00f3n en SHOT. Sin embargo, si hemos llamado a tcf_mirred_forward(), el skb est\u00e1 fuera de nuestras manos y devolver SHOT conducir\u00e1 a UaF. Mueva la anulaci\u00f3n de recuperaci\u00f3n a la ruta de error que realmente la necesita."}], "id": "CVE-2024-26739", "lastModified": "2024-04-03T17:24:18.150", "metrics": {}, "published": "2024-04-03T17:15:51.367", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/166c2c8a6a4dc2e4ceba9e10cfe81c3e469e3210"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/28cdbbd38a4413b8eff53399b3f872fd4e80db9d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f4e294bbdca8ac8757db436fc82214f3882fc7e7"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"affected_release": [{"advisory": "RHSA-2024:6997", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-427.37.1.el9_4", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-09-24T00:00:00Z"}, {"advisory": "RHSA-2024:6997", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-427.37.1.el9_4", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-09-24T00:00:00Z"}, {"advisory": "RHSA-2024:4823", "cpe": "cpe:/a:redhat:rhel_eus:9.2", "package": "kernel-0:5.14.0-284.75.1.el9_2", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2024-07-24T00:00:00Z"}, {"advisory": "RHSA-2024:4831", "cpe": "cpe:/a:redhat:rhel_eus:9.2::nfv", "package": "kernel-rt-0:5.14.0-284.75.1.rt14.360.el9_2", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2024-07-24T00:00:00Z"}], "bugzilla": {"description": "kernel: net/sched: act_mirred: don't override retval if we already lost the skb", "id": "2273270", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2273270"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-416", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnet/sched: act_mirred: don't override retval if we already lost the skb\nIf we're redirecting the skb, and haven't called tcf_mirred_forward(),\nyet, we need to tell the core to drop the skb by setting the retcode\nto SHOT. If we have called tcf_mirred_forward(), however, the skb\nis out of our hands and returning SHOT will lead to UaF.\nMove the retval override to the error path which actually need it.", "A use-after-free flaw was found in net/sched/act_mirred.c in the Linux kernel. This may result in a crash."], "name": "CVE-2024-26739", "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": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-04-03T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-26739\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-26739\nhttps://lore.kernel.org/linux-cve-announce/2024040300-CVE-2024-26739-170e@gregkh/T"], "threat_severity": "Moderate", "upstream_fix": "kernel 6.6.19, kernel 6.7.7, kernel 6.8"}