CVE-2018-1120

Description (CNA)

A flaw was found affecting the Linux kernel before version 4.17. By mmap()ing a FUSE-backed file onto a process's memory containing command line arguments (or environment strings), an attacker can cause utilities from psutils or procps (such as ps, w) or any other program which makes a read() call to the /proc/<pid>/cmdline (or /proc/<pid>/environ) files to block indefinitely (denial of service) or for some controlled time (as a synchronization primitive for other attacks).

Affected (CNA)

CWE

CWE-122

References

• https://usn.ubuntu.com/3752-2/
• https://access.redhat.com/errata/RHSA-2018:3083
• http://www.securityfocus.com/bid/104229
• https://usn.ubuntu.com/3752-3/
• https://security.gentoo.org/glsa/201805-14
• https://www.exploit-db.com/exploits/44806/
• https://usn.ubuntu.com/3910-1/
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7f7ccc2ccc2e70c6054685f5e3522efa81556830
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1120
• https://usn.ubuntu.com/3910-2/
• https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html
• https://access.redhat.com/errata/RHSA-2018:2948
• http://seclists.org/oss-sec/2018/q2/122
• https://usn.ubuntu.com/3752-1/
• https://access.redhat.com/errata/RHSA-2018:3096

ADP enrichment