{"id":"CVE-2018-1095","state":"PUBLISHED","title":"The ext4_xattr_check_entries function in fs/ext4/xattr.c in the Linux kernel through 4.15.15 does not properly validate xattr sizes, which causes misinterpretation of a size as an ","description":"The ext4_xattr_check_entries function in fs/ext4/xattr.c in the Linux kernel through 4.15.15 does not properly validate xattr sizes, which causes misinterpretation of a size as an error code, and consequently allows attackers to cause a denial of service (get_acl NULL pointer dereference and system crash) via a crafted ext4 image.","publishedAt":"2018-04-02T03:00:00.000Z","updatedAt":"2024-08-05T03:51:48.616Z","severity":null,"assigner":"redhat","products":["n/a Linux kernel through version 4.15"],"affected":[{"vendor":"n/a","product":"Linux kernel through version 4.15","versions":[{"version":"Linux kernel through version 4.15","status":"affected"}]}],"references":["https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=ce3fd194fcc6fbdc00ce095a852f22df97baa401","http://openwall.com/lists/oss-security/2018/03/29/1","https://usn.ubuntu.com/3695-1/","https://usn.ubuntu.com/3695-2/","https://access.redhat.com/errata/RHSA-2018:2948","https://bugzilla.kernel.org/show_bug.cgi?id=199185","https://bugzilla.redhat.com/show_bug.cgi?id=1560793"],"weaknesses":[],"ingestedAt":"2026-10-29T19:44:36.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2018/1xxx/CVE-2018-1095.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2018-1095","state":"PUBLISHED","datePublished":"2018-04-02T03:00:00.000Z","dateUpdated":"2024-08-05T03:51:48.616Z","assignerShortName":"redhat","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateReserved":"2017-12-04T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"The ext4_xattr_check_entries function in fs/ext4/xattr.c in the Linux kernel through 4.15.15 does not properly validate xattr sizes, which causes misinterpretation of a size as an error code, and consequently allows attackers to cause a denial of service (get_acl NULL pointer dereference and system crash) via a crafted ext4 image."}],"affected":[{"vendor":"n/a","product":"Linux kernel through version 4.15","versions":[{"version":"Linux kernel through version 4.15","status":"affected"}]}],"references":[{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=ce3fd194fcc6fbdc00ce095a852f22df97baa401","tags":["x_refsource_MISC"]},{"url":"http://openwall.com/lists/oss-security/2018/03/29/1","tags":["x_refsource_MISC"]},{"url":"https://usn.ubuntu.com/3695-1/","name":"USN-3695-1","tags":["vendor-advisory","x_refsource_UBUNTU"]},{"url":"https://usn.ubuntu.com/3695-2/","name":"USN-3695-2","tags":["vendor-advisory","x_refsource_UBUNTU"]},{"url":"https://access.redhat.com/errata/RHSA-2018:2948","name":"RHSA-2018:2948","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://bugzilla.kernel.org/show_bug.cgi?id=199185","tags":["x_refsource_MISC"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1560793","tags":["x_refsource_MISC"]}],"problemTypes":[{"descriptions":[{"description":"NULL pointer dereference","lang":"en","type":"text"}]}],"providerMetadata":{"shortName":"redhat","dateUpdated":"2018-10-31T09:57:01.000Z","orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749"},"datePublic":"2018-04-01T00:00:00.000Z"},"adp":[{"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=ce3fd194fcc6fbdc00ce095a852f22df97baa401","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://openwall.com/lists/oss-security/2018/03/29/1","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://usn.ubuntu.com/3695-1/","name":"USN-3695-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred"]},{"url":"https://usn.ubuntu.com/3695-2/","name":"USN-3695-2","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred"]},{"url":"https://access.redhat.com/errata/RHSA-2018:2948","name":"RHSA-2018:2948","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"]},{"url":"https://bugzilla.kernel.org/show_bug.cgi?id=199185","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1560793","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-05T03:51:48.616Z"}}]}}}