Chrome OS /sbin/crash_reporter Symlink Traversal

Chrome OS: symlink traversal issue in /sbin/crashreporter Tested on: Version 69.0.3473.0 Official Build dev 64-bit CreateDirectoryWithSettings in https://chromium.googlesource.com/chromiumos/platform2/+/master/crash-reporter/crashcollector.cc107 is executed by /sbin/crashreporter every time a...

AppArmor Filesystem Blacklisting Bypass

AppArmor: filesystem blacklisting can be bypassed by moving parents Some AppArmor policies attempt to blacklist access to specific directories while broadly granting write access to everything else. For example, the Firefox profile uses the user-files abstraction, which broadly permits write acce...

Wayland wl_connection_demarshal() Out-Of-Bounds Memory Access

Wayland: out-of-bounds memory access in wlconnectiondemarshal on 32-bit systems In wlconnectiondemarshal, incoming strings are parsed as follows: // audit note: length is a u32 // audit note: p points to raw incoming u32 length = p++; if length == 0 closure-argsi.s = NULL; break; // audit note:...

cgit cgit_clone_objects() Directory Traversal

cgit: directory traversal in cgitcloneobjects CVE-2018-14912 There is a directory traversal vulnerability in cgitcloneobjects, reachable when the configuration flag enable-http-clone is set to 1 default: void cgitcloneobjectsvoid if !ctx.qry.path cgitprinterrorpage400, "Bad request", "Bad request...

macOS process_policy Stack Leak

MacOS processpolicy stack leak through uninitialized field CVE-2017-7154 The syscall processpolicyscope=PROCPOLICYSCOPEPROCESS, action=PROCPOLICYACTIONGET, policy=PROCPOLICYRESOURCEUSAGE, policysubtype=PROCPOLICYRUSAGECPU, attrp=, targetpid=0, targetthreadid= causes 4 bytes of uninitialized kerne...

Tor Linux Sandbox Breakout Via X11

Tor: Linux sandbox breakout via X11 From inside the Linux sandbox described in https://blog.torproject.org/blog/tor-browser-70-released, it is still possible to talk to the X server without any restrictions. This means that a compromised browser can e.g. use the XTEST X protocol extension at...

VMWare Workstation On Linux Privilege Escalation

This vulnerability permits an unprivileged user on a Linux machine on which VMWare Workstation is installed to gain root privileges. The issue is that, for VMs with audio, the privileged VM host process loads libasound, which parses ALSA configuration files, including one at /.asoundrc. libasound...

OpenSSH On Cygwin SFTP Client Directory Traversal Vulnerability

Portable OpenSSH supports running on Cygwin. However, the SFTP client only filters out forward slashes in dolsreaddir and the directory names "." and ".." in downloaddirinternal. On Windows, including in Cygwin, backslashes can a lso be used for directory traversal. OpenSSH on Cygwin: directory...