CVE-2018-1000001
HIGH severity · CVSS 7.8 · Out-of-bounds write
7.8CVSS HIGH
Summary
In glibc 2.26 and earlier there is confusion in the usage of getcwd() by realpath() which can be used to write before the destination buffer leading to a buffer underflow and potential code execution.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)14%
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://seclists.org/oss-sec/2018/q1/38Advisory
- http://www.securityfocus.com/bid/102525Advisory
- http://www.securitytracker.com/id/1040162Advisory
- https://access.redhat.com/errata/RHSA-2018:0805Advisory
- https://security.netapp.com/advisory/ntap-20190404-0003/
- https://usn.ubuntu.com/3534-1/Advisory
- https://usn.ubuntu.com/3536-1/Advisory
- https://www.exploit-db.com/exploits/43775/Advisory