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CVE-2017-16995
Current Description
The check_alu_op function in kernel/bpf/verifier.c in the Linux kernel through 4.14.8 allows local users to cause a denial of service (memory corruption) or possibly have unspecified other impact by leveraging incorrect sign extension.
Basic Data
| Published | December 27, 2017 |
|---|---|
| Last Modified | July 28, 2018 |
| Assigner | cve@mitre.org |
| Data Type | CVE |
| Data Format | MITRE |
| Data Version | 4.0 |
| Problem Type | CWE-119 |
| CVE Data Version | 4.0 |
Base Metric V2
| CVSS 2 - Version | 2.0 |
|---|---|
| CVSS 2 - Vector String | AV:L/AC:L/Au:N/C:C/I:C/A:C |
| CVSS 2 - Access Vector | LOCAL |
| CVSS 2 - Access Complexity | LOW |
| CVSS 2 - Authentication | NONE |
| CVSS 2 - Confidentiality Impact | COMPLETE |
| CVSS 2 - Availability Impact | COMPLETE |
| CVSS 2 - Base Score | 7.2 |
| Severity | HIGH |
| Exploitability Score | 3.9 |
| Impact Score | 10.0 |
| Obtain All Privilege | false |
| Obtain User Privilege | false |
| Obtain Other Privilege | false |
Base Metric V3
| CVSS 3 - Version | 3.0 |
|---|---|
| CVSS 3 - Vector String | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CVSS 3 - Attack Vector | LOCAL |
| CVSS 3 - Attack Complexity | LOW |
| CVSS 3 - Privileges Required | LOW |
| CVSS 3 - User Interaction | NONE |
| CVSS 3 - Scope | UNCHANGED |
| CVSS 3 - Confidentiality Impact | HIGH |
| CVSS 3 - Integrity Impact | HIGH |
| CVSS 3 - Availability Impact | HIGH |
| CVSS 3 - Base Score | 7.8 |
| CVSS 3 - Base Severity | HIGH |
| Exploitability Score | 1.8 |
| Base Severity | HIGH |
Configurations
-
OR - Configuration 1
Cpe Version Part Vendor Product Version Update Edition Language SW Edition Target SW Target HW Other Version Start Including Version End Including Version Start Excluding Version End Excluding 2.3 OS Linux Linux Kernel * * * * * * * * 4.14.8 -
OR - Configuration 2
Cpe Version Part Vendor Product Version Update Edition Language SW Edition Target SW Target HW Other Version Start Including Version End Including Version Start Excluding Version End Excluding 2.3 OS Debian Debian Linux 9.0 * * * * * * *
Vulnerable Software List
| Vendor | Product | Versions |
|---|---|---|
| Debian | Debian Linux | 9.0 |
| Linux | Linux Kernel | * |
References
| Name | Source | URL | Tags |
|---|---|---|---|
| http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=95a762e2c8c942780948091f8f2a4f32fce1ac6f | http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=95a762e2c8c942780948091f8f | MISC | Vendor Advisory |
| http://openwall.com/lists/oss-security/2017/12/21/2 | http://openwall.com/lists/oss-security/2017/12/21/2 | MISC | Mailing List |
| 102288 | http://www.securityfocus.com/bid/102288 | BID | Third Party Advisory VDB Entry |
| https://bugs.chromium.org/p/project-zero/issues/detail?id=1454 | https://bugs.chromium.org/p/project-zero/issues/detail?id=1454 | MISC | Third Party Advisory |
| https://github.com/torvalds/linux/commit/95a762e2c8c942780948091f8f2a4f32fce1ac6f | https://github.com/torvalds/linux/commit/95a762e2c8c942780948091f8f2a4f32fce1ac6f | MISC | Third Party Advisory |
| USN-3619-1 | https://usn.ubuntu.com/3619-1/ | UBUNTU | |
| USN-3619-2 | https://usn.ubuntu.com/3619-2/ | UBUNTU | |
| USN-3633-1 | https://usn.ubuntu.com/3633-1/ | UBUNTU | |
| USN-3523-2 | https://usn.ubuntu.com/usn/usn-3523-2/ | UBUNTU | |
| DSA-4073 | https://www.debian.org/security/2017/dsa-4073 | DEBIAN | Third Party Advisory |
| 44298 | https://www.exploit-db.com/exploits/44298/ | EXPLOIT-DB | |
| 45010 | https://www.exploit-db.com/exploits/45010/ | EXPLOIT-DB | |
| 45058 | https://www.exploit-db.com/exploits/45058/ | EXPLOIT-DB |