Buffer overflow in Linux Kernel
CVE-2016-3955
The usbip_recv_xbuff function in drivers/usb/usbip/usbip_common.c in the Linux kernel before 4.5.3 allows remote attackers to cause a denial of service (out-of-bounds write) or possibly have unspecified other impact via a crafted length value in a USB/IP packet.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.253 (97.9th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.259 · newest: 0.253 · change: -0.006
Affected products
- Linux Kernel
- Canonical Ubuntu Linux — versions 12.04, 14.04, 15.10
- Debian Linux — versions 8.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.ubuntu.com/usn/USN-3004-1 (vendor-advisory, Third Party Advisory)
- www.ubuntu.com/usn/USN-3001-1 (vendor-advisory, Third Party Advisory)
- github.com/torvalds/linux/commit/b348d7dddb6c4fbfc810b7a0626e8ec9e29f7cbb (Patch, Vendor Advisory)
- lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html (vendor-advisory, Mailing List, Third Party Advisory)
- www.ubuntu.com/usn/USN-2997-1 (vendor-advisory, Third Party Advisory)
- www.ubuntu.com/usn/USN-3000-1 (vendor-advisory, Third Party Advisory)
- www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.3 (Vendor Advisory)
- www.debian.org/security/2016/dsa-3607 (vendor-advisory, Third Party Advisory)
- www.ubuntu.com/usn/USN-3002-1 (vendor-advisory, Third Party Advisory)
- www.ubuntu.com/usn/USN-2996-1 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-3955?
- CVE-2016-3955 is a critical-severity vulnerability in Linux Kernel, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2016-07-03.
- How severe is CVE-2016-3955?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2016-3955 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.