Buffer overflow in Linux Kernel
CVE-2017-1000363
Linux drivers/char/lp.c Out-of-Bounds Write. Due to a missing bounds check, and the fact that parport_ptr integer is static, a 'secure boot' kernel command line adversary (can happen due to bootloader vulns, e.g. Google Nexus 6's CVE-2016-10277, where due to a vulnerability the adversary has partial control over the command line) can overflow the parport_nr array in the following code, by appending many (>LP_NO) 'lp=none' arguments to the command line.
Vulnerability class: Buffer Overflow
EPSS: 0.006 (46.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux Linux_kernel — versions 4.12
- Debian Debian_linux — versions 8.0
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
- ARPSyndicate/cvemon
- R0B1NL1N/linux-kernel-exploitation
- Technoashofficial/kernel-exploitation-linux
- kdn111/linux-kernel-exploitation
- khanhdn111/linux-kernel-exploitation
- khanhdz-06/linux-kernel-exploitation
- khanhdz191/linux-kernel-exploitation
- khanhhdz/linux-kernel-exploitation
- khanhhdz06/linux-kernel-exploitation
- khanhnd123/linux-kernel-exploitation
References
- cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
Frequently asked questions
- What is CVE-2017-1000363?
- CVE-2017-1000363 is a high-severity vulnerability in Linux Kernel, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2017-07-17.
- How severe is CVE-2017-1000363?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2017-1000363 known to be exploited?
- 17 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.