{ "containers": { "cna": { "affected": [ { "product": "n/a", "vendor": "n/a", "versions": [ { "status": "affected", "version": "n/a" } ] } ], "datePublic": "2016-02-23T00:00:00.000Z", "descriptions": [ { "lang": "en", "value": "pt_chown in the glibc package before 2.19-18+deb8u4 on Debian jessie; the elibc package before 2.15-0ubuntu10.14 on Ubuntu 12.04 LTS and before 2.19-0ubuntu6.8 on Ubuntu 14.04 LTS; and the glibc package before 2.21-0ubuntu4.2 on Ubuntu 15.10 and before 2.23-0ubuntu1 on Ubuntu 16.04 LTS and 16.10 lacks a namespace check associated with file-descriptor passing, which allows local users to capture keystrokes and spoof data, and possibly gain privileges, via pts read and write operations, related to debian/sysdeps/linux.mk. NOTE: this is not considered a vulnerability in the upstream GNU C Library because the upstream documentation has a clear security recommendation against the --enable-pt_chown option." } ], "problemTypes": [ { "descriptions": [ { "description": "n/a", "lang": "en", "type": "text" } ] } ], "providerMetadata": { "dateUpdated": "2016-11-25T19:57:01.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre" }, "references": [ { "tags": [ "x_refsource_MISC" ], "url": "http://www.halfdog.net/Security/2015/PtChownArbitraryPtsAccessViaUserNamespace/" }, { "tags": [ "x_refsource_CONFIRM" ], "url": "http://anonscm.debian.org/cgit/pkg-glibc/glibc.git/commit/?h=jessie&id=11475c083282c1582c4dd72eecfcb2b7d308c958" }, { "name": "[oss-security] 20160306 Re: Access to /dev/pts devices via pt_chown and user namespaces", "tags": [ "mailing-list", "x_refsource_MLIST" ], "url": "http://www.openwall.com/lists/oss-security/2016/03/07/2" }, { "name": "84601", "tags": [ "vdb-entry", "x_refsource_BID" ], "url": "http://www.securityfocus.com/bid/84601" }, { "name": "USN-2985-2", "tags": [ "vendor-advisory", "x_refsource_UBUNTU" ], "url": "http://www.ubuntu.com/usn/USN-2985-2" }, { "tags": [ "x_refsource_CONFIRM" ], "url": "http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-2856.html" }, { "tags": [ "x_refsource_CONFIRM" ], "url": "http://anonscm.debian.org/cgit/pkg-glibc/glibc.git/commit/?h=jessie&id=09f7764882a81e13e7b5d87d715412283a6ce403" }, { "name": "[oss-security] 20160223 Access to /dev/pts devices via pt_chown and user namespaces", "tags": [ "mailing-list", "x_refsource_MLIST" ], "url": "http://www.openwall.com/lists/oss-security/2016/02/23/3" }, { "name": "USN-2985-1", "tags": [ "vendor-advisory", "x_refsource_UBUNTU" ], "url": "http://www.ubuntu.com/usn/USN-2985-1" } ], "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "cve@mitre.org", "ID": "CVE-2016-2856", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "n/a", "version": { "version_data": [ { "version_value": "n/a" } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "pt_chown in the glibc package before 2.19-18+deb8u4 on Debian jessie; the elibc package before 2.15-0ubuntu10.14 on Ubuntu 12.04 LTS and before 2.19-0ubuntu6.8 on Ubuntu 14.04 LTS; and the glibc package before 2.21-0ubuntu4.2 on Ubuntu 15.10 and before 2.23-0ubuntu1 on Ubuntu 16.04 LTS and 16.10 lacks a namespace check associated with file-descriptor passing, which allows local users to capture keystrokes and spoof data, and possibly gain privileges, via pts read and write operations, related to debian/sysdeps/linux.mk. NOTE: this is not considered a vulnerability in the upstream GNU C Library because the upstream documentation has a clear security recommendation against the --enable-pt_chown option." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "name": "http://www.halfdog.net/Security/2015/PtChownArbitraryPtsAccessViaUserNamespace/", "refsource": "MISC", "url": "http://www.halfdog.net/Security/2015/PtChownArbitraryPtsAccessViaUserNamespace/" }, { "name": "http://anonscm.debian.org/cgit/pkg-glibc/glibc.git/commit/?h=jessie&id=11475c083282c1582c4dd72eecfcb2b7d308c958", "refsource": "CONFIRM", "url": "http://anonscm.debian.org/cgit/pkg-glibc/glibc.git/commit/?h=jessie&id=11475c083282c1582c4dd72eecfcb2b7d308c958" }, { "name": "[oss-security] 20160306 Re: Access to /dev/pts devices via pt_chown and user namespaces", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2016/03/07/2" }, { "name": "84601", "refsource": "BID", "url": "http://www.securityfocus.com/bid/84601" }, { "name": "USN-2985-2", "refsource": "UBUNTU", "url": "http://www.ubuntu.com/usn/USN-2985-2" }, { "name": "http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-2856.html", "refsource": "CONFIRM", "url": "http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-2856.html" }, { "name": "http://anonscm.debian.org/cgit/pkg-glibc/glibc.git/commit/?h=jessie&id=09f7764882a81e13e7b5d87d715412283a6ce403", "refsource": "CONFIRM", "url": "http://anonscm.debian.org/cgit/pkg-glibc/glibc.git/commit/?h=jessie&id=09f7764882a81e13e7b5d87d715412283a6ce403" }, { "name": "[oss-security] 20160223 Access to /dev/pts devices via pt_chown and user namespaces", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2016/02/23/3" }, { "name": "USN-2985-1", "refsource": "UBUNTU", "url": "http://www.ubuntu.com/usn/USN-2985-1" } ] } } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T23:40:13.594Z" }, "title": "CVE Program Container", "references": [ { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "http://www.halfdog.net/Security/2015/PtChownArbitraryPtsAccessViaUserNamespace/" }, { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "http://anonscm.debian.org/cgit/pkg-glibc/glibc.git/commit/?h=jessie&id=11475c083282c1582c4dd72eecfcb2b7d308c958" }, { "name": "[oss-security] 20160306 Re: Access to /dev/pts devices via pt_chown and user namespaces", "tags": [ "mailing-list", "x_refsource_MLIST", "x_transferred" ], "url": "http://www.openwall.com/lists/oss-security/2016/03/07/2" }, { "name": "84601", "tags": [ "vdb-entry", "x_refsource_BID", "x_transferred" ], "url": "http://www.securityfocus.com/bid/84601" }, { "name": "USN-2985-2", "tags": [ "vendor-advisory", "x_refsource_UBUNTU", "x_transferred" ], "url": "http://www.ubuntu.com/usn/USN-2985-2" }, { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-2856.html" }, { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "http://anonscm.debian.org/cgit/pkg-glibc/glibc.git/commit/?h=jessie&id=09f7764882a81e13e7b5d87d715412283a6ce403" }, { "name": "[oss-security] 20160223 Access to /dev/pts devices via pt_chown and user namespaces", "tags": [ "mailing-list", "x_refsource_MLIST", "x_transferred" ], "url": "http://www.openwall.com/lists/oss-security/2016/02/23/3" }, { "name": "USN-2985-1", "tags": [ "vendor-advisory", "x_refsource_UBUNTU", "x_transferred" ], "url": "http://www.ubuntu.com/usn/USN-2985-1" } ] } ] }, "cveMetadata": { "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2016-2856", "datePublished": "2016-03-14T01:00:00.000Z", "dateReserved": "2016-03-06T00:00:00.000Z", "dateUpdated": "2024-08-05T23:40:13.594Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }