vulnerability
Ubuntu: (Multiple Advisories) (CVE-2016-4557): Linux kernel vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:N/C:C/I:C/A:C) | May 6, 2016 | May 18, 2016 | Mar 27, 2026 |
Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
May 6, 2016
Added
May 18, 2016
Modified
Mar 27, 2026
Description
The replace_map_fd_with_map_ptr function in kernel/bpf/verifier.c in the Linux kernel before 4.5.5 does not properly maintain an fd data structure, which allows local users to gain privileges or cause a denial of service (use-after-free) via crafted BPF instructions that reference an incorrect file descriptor.
Solutions
ubuntu-upgrade-linux-image-4-4-0-1010-raspi2ubuntu-upgrade-linux-image-4-4-0-1013-snapdragonubuntu-upgrade-linux-image-4-4-0-22-genericubuntu-upgrade-linux-image-4-4-0-22-generic-lpaeubuntu-upgrade-linux-image-4-4-0-22-lowlatencyubuntu-upgrade-linux-image-4-4-0-22-powerpc-e500mcubuntu-upgrade-linux-image-4-4-0-22-powerpc-smpubuntu-upgrade-linux-image-4-4-0-22-powerpc64-embubuntu-upgrade-linux-image-4-4-0-22-powerpc64-smp
References
Rapid7 Labs
2026 Global Threat Landscape Report
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