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    CVE-2016-2383

    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.

    Published:Feb 14, 2016
    Last Modified:Apr 12, 2025
    EPS:Apr 27, 2016
    EPSS Score:0.00057
    CVSS Score:5.5

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Opensuse
    Product
    Leap

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    Related CVEs

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    CVE-2026-47337 (CVSS 3.3) — Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling …
    CVE-2026-47336 (CVSS 3.3) — Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/A…
    CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…
    CVE-2026-47334 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock…
    CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…
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    References

    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a1b14d27ed0965838350f1377ff97c93ee383492
    http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html
    http://www.openwall.com/lists/oss-security/2016/02/14/1
    http://www.ubuntu.com/usn/USN-2947-1
    http://www.ubuntu.com/usn/USN-2947-2
    http://www.ubuntu.com/usn/USN-2947-3
    https://bugzilla.redhat.com/show_bug.cgi?id=1308452
    https://github.com/torvalds/linux/commit/a1b14d27ed0965838350f1377ff97c93ee383492
    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a1b14d27ed0965838350f1377ff97c93ee383492
    http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html
    http://www.openwall.com/lists/oss-security/2016/02/14/1
    http://www.ubuntu.com/usn/USN-2947-1
    http://www.ubuntu.com/usn/USN-2947-2
    http://www.ubuntu.com/usn/USN-2947-3
    https://bugzilla.redhat.com/show_bug.cgi?id=1308452
    https://github.com/torvalds/linux/commit/a1b14d27ed0965838350f1377ff97c93ee383492

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High