{ "CVE_data_meta": { "ASSIGNER": "cve@mitre.org", "ID": "CVE-2019-13272", "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": "In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to create a ptrace relationship, which allows local users to obtain root access by leveraging certain scenarios with a parent-child process relationship, where a parent drops privileges and calls execve (potentially allowing control by an attacker). One contributing factor is an object lifetime issue (which can also cause a panic). Another contributing factor is incorrect marking of a ptrace relationship as privileged, which is exploitable through (for example) Polkit's pkexec helper with PTRACE_TRACEME. NOTE: SELinux deny_ptrace might be a usable workaround in some environments." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "url": "http://packetstormsecurity.com/files/153663/Linux-PTRACE_TRACEME-Broken-Permission-Object-Lifetime-Handling.html", "refsource": "MISC", "name": "http://packetstormsecurity.com/files/153663/Linux-PTRACE_TRACEME-Broken-Permission-Object-Lifetime-Handling.html" }, { "url": "https://bugs.chromium.org/p/project-zero/issues/detail?id=1903", "refsource": "MISC", "name": "https://bugs.chromium.org/p/project-zero/issues/detail?id=1903" }, { "url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.17", "refsource": "MISC", "name": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.17" }, { "url": "https://github.com/torvalds/linux/commit/6994eefb0053799d2e07cd140df6c2ea106c41ee", "refsource": "MISC", "name": "https://github.com/torvalds/linux/commit/6994eefb0053799d2e07cd140df6c2ea106c41ee" }, { "url": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6994eefb0053799d2e07cd140df6c2ea106c41ee", "refsource": "MISC", "name": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6994eefb0053799d2e07cd140df6c2ea106c41ee" }, { "refsource": "CONFIRM", "name": "https://bugzilla.suse.com/show_bug.cgi?id=1140671", "url": "https://bugzilla.suse.com/show_bug.cgi?id=1140671" }, { "refsource": "CONFIRM", "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1730895", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1730895" }, { "refsource": "FEDORA", "name": "FEDORA-2019-a95015e60f", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OGRK5LYWBJ4E4SRI4DKX367NHYSI3VOH/" }, { "refsource": "DEBIAN", "name": "DSA-4484", "url": "https://www.debian.org/security/2019/dsa-4484" }, { "refsource": "BUGTRAQ", "name": "20190722 [SECURITY] [DSA 4484-1] linux security update", "url": "https://seclists.org/bugtraq/2019/Jul/30" }, { "refsource": "BUGTRAQ", "name": "20190722 [slackware-security] Slackware 14.2 kernel (SSA:2019-202-01)", "url": "https://seclists.org/bugtraq/2019/Jul/33" }, { "refsource": "MLIST", "name": "[debian-lts-announce] 20190723 [SECURITY] [DLA 1862-1] linux security update", "url": "https://lists.debian.org/debian-lts-announce/2019/07/msg00022.html" }, { "refsource": "MLIST", "name": "[debian-lts-announce] 20190723 [SECURITY] [DLA 1863-1] linux-4.9 security update", "url": "https://lists.debian.org/debian-lts-announce/2019/07/msg00023.html" }, { "refsource": "MISC", "name": "http://packetstormsecurity.com/files/153702/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html", "url": "http://packetstormsecurity.com/files/153702/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html" }, { "refsource": "CONFIRM", "name": "https://security.netapp.com/advisory/ntap-20190806-0001/", "url": "https://security.netapp.com/advisory/ntap-20190806-0001/" }, { "refsource": "REDHAT", "name": "RHSA-2019:2405", "url": "https://access.redhat.com/errata/RHSA-2019:2405" }, { "refsource": "REDHAT", "name": "RHSA-2019:2411", "url": "https://access.redhat.com/errata/RHSA-2019:2411" }, { "refsource": "UBUNTU", "name": "USN-4093-1", "url": "https://usn.ubuntu.com/4093-1/" }, { "refsource": "UBUNTU", "name": "USN-4094-1", "url": "https://usn.ubuntu.com/4094-1/" }, { "refsource": "UBUNTU", "name": "USN-4095-1", "url": "https://usn.ubuntu.com/4095-1/" }, { "refsource": "MISC", "name": "http://packetstormsecurity.com/files/154245/Kernel-Live-Patch-Security-Notice-LSN-0054-1.html", "url": "http://packetstormsecurity.com/files/154245/Kernel-Live-Patch-Security-Notice-LSN-0054-1.html" }, { "refsource": "CONFIRM", "name": "https://support.f5.com/csp/article/K91025336", "url": "https://support.f5.com/csp/article/K91025336" }, { "refsource": "UBUNTU", "name": "USN-4117-1", "url": "https://usn.ubuntu.com/4117-1/" }, { "refsource": "UBUNTU", "name": "USN-4118-1", "url": "https://usn.ubuntu.com/4118-1/" }, { "refsource": "REDHAT", "name": "RHSA-2019:2809", "url": "https://access.redhat.com/errata/RHSA-2019:2809" }, { "refsource": "CONFIRM", "name": "https://support.f5.com/csp/article/K91025336?utm_source=f5support&utm_medium=RSS", "url": "https://support.f5.com/csp/article/K91025336?utm_source=f5support&utm_medium=RSS" }, { "refsource": "MISC", "name": "http://packetstormsecurity.com/files/154957/Linux-Polkit-pkexec-Helper-PTRACE_TRACEME-Local-Root.html", "url": "http://packetstormsecurity.com/files/154957/Linux-Polkit-pkexec-Helper-PTRACE_TRACEME-Local-Root.html" }, { "refsource": "MISC", "name": "http://packetstormsecurity.com/files/156929/Linux-PTRACE_TRACEME-Local-Root.html", "url": "http://packetstormsecurity.com/files/156929/Linux-PTRACE_TRACEME-Local-Root.html" }, { "refsource": "MISC", "name": "http://packetstormsecurity.com/files/165051/Linux-Kernel-5.1.x-PTRACE_TRACEME-pkexec-Local-Privilege-Escalation.html", "url": "http://packetstormsecurity.com/files/165051/Linux-Kernel-5.1.x-PTRACE_TRACEME-pkexec-Local-Privilege-Escalation.html" } ] } }