CVE-2019-13272
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2019-13272
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-13272.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2019-13272
- Related
- Published
- 2019-07-17T13:15:10Z
- Modified
- 2024-09-18T01:00:21Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
In the Linux kernel before 5.1.17, ptracelink 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 PTRACETRACEME. NOTE: SELinux deny_ptrace might be a usable workaround in some environments.
- References
-
- http://packetstormsecurity.com/files/153663/Linux-PTRACE_TRACEME-Broken-Permission-Object-Lifetime-Handling.html
- http://packetstormsecurity.com/files/153702/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
- http://packetstormsecurity.com/files/154245/Kernel-Live-Patch-Security-Notice-LSN-0054-1.html
- http://packetstormsecurity.com/files/154957/Linux-Polkit-pkexec-Helper-PTRACE_TRACEME-Local-Root.html
- http://packetstormsecurity.com/files/156929/Linux-PTRACE_TRACEME-Local-Root.html
- http://packetstormsecurity.com/files/165051/Linux-Kernel-5.1.x-PTRACE_TRACEME-pkexec-Local-Privilege-Escalation.html
- https://access.redhat.com/errata/RHSA-2019:2405
- https://access.redhat.com/errata/RHSA-2019:2411
- https://access.redhat.com/errata/RHSA-2019:2809
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.17
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6994eefb0053799d2e07cd140df6c2ea106c41ee
- https://security.netapp.com/advisory/ntap-20190806-0001/
- https://www.debian.org/security/2019/dsa-4484
- https://lists.debian.org/debian-lts-announce/2019/07/msg00022.html
- https://lists.debian.org/debian-lts-announce/2019/07/msg00023.html
- https://seclists.org/bugtraq/2019/Jul/30
- https://seclists.org/bugtraq/2019/Jul/33
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1903
- https://bugzilla.redhat.com/show_bug.cgi?id=1730895
- https://bugzilla.suse.com/show_bug.cgi?id=1140671
- https://github.com/torvalds/linux/commit/6994eefb0053799d2e07cd140df6c2ea106c41ee
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OGRK5LYWBJ4E4SRI4DKX367NHYSI3VOH/
- https://support.f5.com/csp/article/K91025336
- https://support.f5.com/csp/article/K91025336?utm_source=f5support&%3Butm_medium=RSS
- https://usn.ubuntu.com/4093-1/
- https://usn.ubuntu.com/4094-1/
- https://usn.ubuntu.com/4095-1/
- https://usn.ubuntu.com/4117-1/
- https://usn.ubuntu.com/4118-1/
- https://security-tracker.debian.org/tracker/CVE-2019-13272
Affected packages
Debian:11 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:12 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source