cve-2025-37778
Vulnerability from cvelistv5
Published
2025-05-01 13:07
Modified
2025-05-01 13:07
Severity ?
EPSS score ?
Summary
ksmbd: Fix dangling pointer in krb_authenticate
References
{ "containers": { "cna": { "affected": [ { "defaultStatus": "unaffected", "product": "Linux", "programFiles": [ "fs/smb/server/smb2pdu.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "lessThan": "d5b554bc8d554ed6ddf443d3db2fad9f665cec10", "status": "affected", "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "versionType": "git" }, { "lessThan": "1db2451de23e98bc864c6a6e52aa0d82c91cb325", "status": "affected", "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "versionType": "git" }, { "lessThan": "6e30c0e10210c714f3d4453dc258d4abcc70364e", "status": "affected", "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "versionType": "git" }, { "lessThan": "e83e39a5f6a01a81411a4558a59a10f87aa88dd6", "status": "affected", "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "versionType": "git" }, { "lessThan": "1e440d5b25b7efccb3defe542a73c51005799a5f", "status": "affected", "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "versionType": "git" } ] }, { "defaultStatus": "affected", "product": "Linux", "programFiles": [ "fs/smb/server/smb2pdu.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.135", "versionType": "semver" }, { "lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.88", "versionType": "semver" }, { "lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.25", "versionType": "semver" }, { "lessThanOrEqual": "6.14.*", "status": "unaffected", "version": "6.14.4", "versionType": "semver" }, { "lessThanOrEqual": "*", "status": "unaffected", "version": "6.15-rc3", "versionType": "original_commit_for_fix" } ] } ], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: Fix dangling pointer in krb_authenticate\n\nkrb_authenticate frees sess-\u003euser and does not set the pointer\nto NULL. It calls ksmbd_krb5_authenticate to reinitialise\nsess-\u003euser but that function may return without doing so. If\nthat happens then smb2_sess_setup, which calls krb_authenticate,\nwill be accessing free\u0027d memory when it later uses sess-\u003euser." } ], "providerMetadata": { "dateUpdated": "2025-05-01T13:07:16.472Z", "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux" }, "references": [ { "url": "https://git.kernel.org/stable/c/d5b554bc8d554ed6ddf443d3db2fad9f665cec10" }, { "url": "https://git.kernel.org/stable/c/1db2451de23e98bc864c6a6e52aa0d82c91cb325" }, { "url": "https://git.kernel.org/stable/c/6e30c0e10210c714f3d4453dc258d4abcc70364e" }, { "url": "https://git.kernel.org/stable/c/e83e39a5f6a01a81411a4558a59a10f87aa88dd6" }, { "url": "https://git.kernel.org/stable/c/1e440d5b25b7efccb3defe542a73c51005799a5f" } ], "title": "ksmbd: Fix dangling pointer in krb_authenticate", "x_generator": { "engine": "bippy-1.1.0" } } }, "cveMetadata": { "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "assignerShortName": "Linux", "cveId": "CVE-2025-37778", "datePublished": "2025-05-01T13:07:16.472Z", "dateReserved": "2025-04-16T04:51:23.940Z", "dateUpdated": "2025-05-01T13:07:16.472Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2025-37778\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-01T14:15:41.617\",\"lastModified\":\"2025-05-02T13:53:20.943\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nksmbd: Fix dangling pointer in krb_authenticate\\n\\nkrb_authenticate frees sess-\u003euser and does not set the pointer\\nto NULL. It calls ksmbd_krb5_authenticate to reinitialise\\nsess-\u003euser but that function may return without doing so. If\\nthat happens then smb2_sess_setup, which calls krb_authenticate,\\nwill be accessing free\u0027d memory when it later uses sess-\u003euser.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ksmbd: Se corrige el puntero colgante en krb_authenticate. krb_authenticate libera sess-\u0026gt;user y no establece el puntero en NULL. Llama a ksmbd_krb5_authenticate para reinicializar sess-\u0026gt;user, pero es posible que esta funci\u00f3n no lo retorne. Si esto ocurre, smb2_sess_setup, que llama a krb_authenticate, acceder\u00e1 a la memoria liberada cuando utilice posteriormente sess-\u0026gt;user.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1db2451de23e98bc864c6a6e52aa0d82c91cb325\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/1e440d5b25b7efccb3defe542a73c51005799a5f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6e30c0e10210c714f3d4453dc258d4abcc70364e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d5b554bc8d554ed6ddf443d3db2fad9f665cec10\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e83e39a5f6a01a81411a4558a59a10f87aa88dd6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}" } }
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