CVE-2016-2383
The adjust_branches function in kernel/bpf/verifier.c in the Linux kernel before 4.5 does not...
The adjust_branches function in kernel/bpf/verifier.c in the Linux kernel before 4.5 does not consider the delta in the backward-jump case, which allows local users to obtain sensitive information from kernel memory by creating a packet filter and then loading crafted BPF instructions.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
5.5
The adjust_branches function in kernel/bpf/verifier.c in the Linux kernel before 4.5 does not consider the delta in the backward-jump case, which allows local users to obtain sensitive information from kernel memory by creating a packet filter and then loading crafted BPF instructions.
- Record
CVE-2016-2383- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 2.1 Low
AV:L/AC:L/Au:N/C:P/I:N/A:N - Updated
- 2026-11-02
CVE List No score
The adjust_branches function in kernel/bpf/verifier.c in the Linux kernel before 4.5 does not consider the delta in the backward-jump case, which allows local users to obtain sensitive information from kernel memory by creating a packet filter and then loading crafted BPF instructions.
- Record
CVE-2016-2383- Updated
- 2026-11-02
EUVDEUVD-2016-3467 No score
The adjust_branches function in kernel/bpf/verifier.c in the Linux kernel before 4.5 does not consider the delta in the backward-jump case, which allows local users to obtain sensitive information from kernel memory by creating a packet filter and then loading crafted BPF instructions.
- Record
EUVD-2016-3467- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-64fh-798g-3h53
5.5
The adjust_branches function in kernel/bpf/verifier.c in the Linux kernel before 4.5 does not...
The adjust_branches function in kernel/bpf/verifier.c in the Linux kernel before 4.5 does not consider the delta in the backward-jump case, which allows local users to obtain sensitive information from kernel memory by creating a packet filter and then loading crafted BPF instructions.
- Record
GHSA-64fh-798g-3h53- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSV
5.5
The adjust_branches function in kernel/bpf/verifier.c in the Linux kernel before 4.5 does not consider the delta in the backward-jump case, which allows local users to obtain sensitive information from kernel memory by creating a packet filter and then loading crafted BPF instructions.
- Record
CVE-2016-2383- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2016-2383
5.5
The adjust_branches function in kernel/bpf/verifier.c in the Linux kernel before 4.5 does not consider the delta in the backward-jump case, which allows local users to obtain sensitive information from kernel memory by creating a packet filter and then loading crafted BPF instructions.
- Record
DEBIAN-CVE-2016-2383- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2016-2383
5.5
The adjust_branches function in kernel/bpf/verifier.c in the Linux kernel before 4.5 does not consider the delta in the backward-jump case, which allows local users to obtain sensitive information from kernel memory by creating a packet filter and then loading crafted BPF instructions.
- Record
UBUNTU-CVE-2016-2383- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVUSN-2947-2 No score
linux-lts-wily vulnerabilities
Ralf Spenneberg discovered that the usbvision driver in the Linux kernel did not properly validate the interfaces and endpoints reported by the device. An attacker with physical access could cause a denial of service (system crash). (CVE-2015-7833)
Venkatesh Pottem discovered a use-after-free vulnerability in the Linux kernel's CXGB3 driver. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2015-8812)
Xiaofei Rex Guo discovered a timing side channel vulnerability in the Linux Extended Verification Module (EVM). An attacker could use this to affect system integrity. (CVE-2016-2085)
It was discovered that the extended Berkeley Packet Filter (eBPF) implementation in the Linux kernel did not correctly compute branch offsets for backward jumps after ctx expansion. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2016-2383)
David Herrmann discovered that the Linux kernel incorrectly accounted file descriptors to the original opener for in-flight file descriptors sent over a unix domain socket. A local attacker could use this to cause a denial of service (resource exhaustion). (CVE-2016-2550)
It was discovered that the Linux kernel did not enforce limits on the amount of data allocated to buffer pipes. A local attacker could use this to cause a denial of service (resource exhaustion). (CVE-2016-2847)
- Record
USN-2947-2- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
linuxDebian:12 |
before 4.4.2-1 | 4.4.2-1 |
linuxDebian:13 |
before 4.4.2-1 | 4.4.2-1 |
linuxDebian:14 |
before 4.4.2-1 | 4.4.2-1 |
linux-lts-wilyUbuntu:14.04:LTS |
before 4.2.0-35.40~14.04.1, plus listed versions 4.2.0-18.22~14.04.14.2.0-19.23~14.04.14.2.0-21.25~14.04.14.2.0-22.27~14.04.14.2.0-23.28~14.04.1 Show 5 moreShow less4.2.0-25.30~14.04.14.2.0-27.32~14.04.14.2.0-30.35~14.04.14.2.0-30.36~14.04.14.2.0-34.39~14.04.1 |
4.2.0-35.40~14.04.1 |
linux-lts-wilyUbuntu:14.04:LTS From an advisory covering 6 CVEs |
before 4.2.0-35.40~14.04.1, plus listed versions 4.2.0-18.22~14.04.14.2.0-19.23~14.04.14.2.0-21.25~14.04.14.2.0-22.27~14.04.14.2.0-23.28~14.04.1 Show 5 moreShow less4.2.0-25.30~14.04.14.2.0-27.32~14.04.14.2.0-30.35~14.04.14.2.0-30.36~14.04.14.2.0-34.39~14.04.1 |
4.2.0-35.40~14.04.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2016-2383 is a medium vulnerability (CVSS 5.5) in Linux Kernel, published February 15, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.37%, the 31st percentile. Fixed in linux 4.4.2-1.
References
github.com/torvalds/linux/commit/a1b14d27ed0965838350f1377ff97c93ee383492
ubuntu.com/usn/USN-2947-3
ubuntu.com/usn/USN-2947-2
ubuntu.com/usn/USN-2947-1
openwall.com/lists/oss-security/2016/02/14/1
bugzilla.redhat.com/show_bug.cgi?id=1308452
Show 15 moreShow less
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit?id=a1b14d27ed0965838350f1377ff97c93ee383492
lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html
nvd.nist.gov/vuln/detail/CVE-2016-2383
github.com/advisories/GHSA-64fh-798g-3h53
security-tracker.debian.org/tracker/CVE-2016-2383
ubuntu.com/security/CVE-2016-2383
ubuntu.com/security/notices/USN-2947-1
ubuntu.com/security/notices/USN-2947-2
ubuntu.com/security/notices/USN-2947-3
cve.org/CVERecord?id=CVE-2016-2383
ubuntu.com/security/CVE-2015-7833
ubuntu.com/security/CVE-2015-8812
ubuntu.com/security/CVE-2016-2085
ubuntu.com/security/CVE-2016-2550
ubuntu.com/security/CVE-2016-2847