NVD

Id
20174  
Name
CVE-2016-4557  
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.  
Reject
 
CVSS Version
2  
CVSS Score
7.2  
Severity
High  
CVSS Base Score
7.2  
CVSS Impact Subscore
10  
CVSS Exploit Subscore
3.9  
CVSS Vector
(AV:L/AC:L/Au:N/C:C/I:C/A:C)  
Pub Date
2017-01-19  
Published
2016-05-23  
Modified Date
2016-11-28  
Seq
2016-4557  

Actions

Related NVD References

Id NVD Id NVD No. Reference Actions
110119 20174 CVE-2016-4557 http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8358b02bf67d3a5d8a825070e1aa73f25fb2e4c7  View
110120 20174 CVE-2016-4557 openSUSE-SU-2016:1641  View
110121 20174 CVE-2016-4557 http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5  View
110122 20174 CVE-2016-4557 [oss-security] 20160506 CVE Requests: Linux: BPF flaws (one use-after-free / local root privilege escalation)  View
110123 20174 CVE-2016-4557 https://bugs.chromium.org/p/project-zero/issues/detail?id=808  View
110124 20174 CVE-2016-4557 https://bugs.debian.org/823603  View
110125 20174 CVE-2016-4557 https://bugzilla.redhat.com/show_bug.cgi?id=1334307  View
110126 20174 CVE-2016-4557 https://github.com/torvalds/linux/commit/8358b02bf67d3a5d8a825070e1aa73f25fb2e4c7  View

Related JVN

Id Name Title Summary Cveinfo Name Cveinfo Id Nvdinfo Name Nvdinfo Id Cvssv2 Cvssv3 Jvnurl Published Date Last Updated Date Actions
2107 JVNDB-2016-002880 Linux Kernel の kernel/bpf/verifier.c の replace_map_fd_with_map_ptr 関数における権限を取得される脆弱性 Linux Kernel の kernel/bpf/verifier.c の replace_map_fd_with_map_ptr 関数は、fd データ構造を適切に保持しないため、権限を取得される、またはサービス運用妨害 (解放済みメモリの使用 (Use-after-free)) 状態にされる脆弱性が存在します。 CVE-2016-4557 91063 CVE-2016-4557 20174 7.2 7.8 http://jvndb.jvn.jp/ja/contents/2016/JVNDB-2016-002880.html 2016-05-18 2016-05-26 View