CVE-2016-4794
Use-after-free vulnerability in mm/percpu.c in the Linux kernel through 4.6 allows local users to cause a denial of service (BUG) or possibly have unspecified other impact via crafted use of the mmap
02 Description
Use-after-free vulnerability in mm/percpu.c in the Linux kernel through 4.6 allows local users to cause a denial of service (BUG) or possibly have unspecified other impact via crafted use of the mmap
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.51% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 43.4% of scored records. A rank, not a probability.
- NVD base score
- 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2016-05-23 10:00Z10 YR AGO
- Last updated
- 2024-08-06 00:39Z2 YR AGO
- Reserved
- 2016-05-12
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-416Use After FreeVariant
- Data version
- 5.1
- Document digest
- aad63102aa86257425b62a0666e07023df849fcd7b7e8d6d9a8909b3571d54f1
05 Affected products
06 References
- www.ubuntu.comUSN-3054-1http://www.ubuntu.com/usn/USN-3054-1
- source.android.comhttps://source.android.com/security/bulletin/2016-12-01.html
- www.ubuntu.comUSN-3053-1http://www.ubuntu.com/usn/USN-3053-1
- www.ubuntu.comUSN-3055-1http://www.ubuntu.com/usn/USN-3055-1
- www.ubuntu.comUSN-3056-1http://www.ubuntu.com/usn/USN-3056-1
- www.openwall.com[oss-security] 20160512 Linux Kernel bpf related UAFhttp://www.openwall.com/lists/oss-security/2016/05/12/6
- rhn.redhat.comRHSA-2016:2584http://rhn.redhat.com/errata/RHSA-2016-2584.html
- rhn.redhat.comRHSA-2016:2574http://rhn.redhat.com/errata/RHSA-2016-2574.html
- lkml.org[linux-kernel] 20160417 Re: bpf: use-after-free in array_map_allochttps://lkml.org/lkml/2016/4/17/125
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1335889
- www.ubuntu.comUSN-3057-1http://www.ubuntu.com/usn/USN-3057-1
- www.securityfocus.com90625http://www.securityfocus.com/bid/90625
07 Fixed in
Debian 12
- linux Fixed in 4.6.2-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 4.6.2-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 4.6.2-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- linux-lts-vivid Fixed in 3.19.0-66.74~14.04.1
- linux-lts-xenial Fixed in 4.4.0-34.53~14.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- linux Fixed in 4.4.0-34.53
- linux-raspi2 Fixed in 4.4.0-1019.25
- linux-snapdragon Fixed in 4.4.0-1022.25
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.