Vulnerability in Linux Kernel
CVE-2015-8709
kernel/ptrace.c in the Linux kernel through 4.4.1 mishandles uid and gid mappings, which allows local users to gain privileges by establishing a user namespace, waiting for a root process to enter that namespace with an unsafe uid or gid, and then using the ptrace system call. NOTE: the vendor states "there is no kernel bug here.
EPSS: 0.004 (32.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux Linux_kernel
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@debian.org (vendor-advisory, x_refsource_SUSE)
- security@debian.org (vendor-advisory, x_refsource_SUSE)
- security@debian.org (vendor-advisory, x_refsource_SUSE)
- security@debian.org (mailing-list, x_refsource_MLIST)
- security@debian.org (vendor-advisory, x_refsource_SUSE)
- security@debian.org (mailing-list, x_refsource_MLIST)
- security@debian.org (vendor-advisory, x_refsource_SUSE)
- security@debian.org (vendor-advisory, x_refsource_SUSE)
- security@debian.org (vendor-advisory, x_refsource_SUSE)
- security@debian.org (mailing-list, x_refsource_MLIST)
Frequently asked questions
- What is CVE-2015-8709?
- CVE-2015-8709 is a high-severity vulnerability in Linux Kernel, classified under CWE-264. CVSS score: 7.0/10. Published 2016-02-08.
- How severe is CVE-2015-8709?
- High severity. CVSS v3 base score is 7.0 out of 10.
- Is CVE-2015-8709 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.