CVE-2018-1000001
UnknownEPSS 13.61%
Last modified
CVE-2018-1000001 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 13.61% chance of exploitation in the next 30 days.
Description
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Gnu | Glibc | <= 2.26 |
| Canonical | Ubuntu Linux | 12.04 |
| Canonical | Ubuntu Linux | 14.04 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 17.10 |
| Redhat | Virtualization Host | 4.0 |
| Redhat | Enterprise Linux Desktop | 7.0 |
| Redhat | Enterprise Linux Server | 7.0 |
| Redhat | Enterprise Linux Server Aus | 7.6 |
| Redhat | Enterprise Linux Server Eus | 7.6 |
| Redhat | Enterprise Linux Server Tus | 7.6 |
| Redhat | Enterprise Linux Workstation | 7.0 |
References
- http://seclists.org/oss-sec/2018/q1/38Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/102525Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040162Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:0805Third Party Advisory
- https://usn.ubuntu.com/3534-1/Third Party Advisory
- https://usn.ubuntu.com/3536-1/Third Party Advisory
- https://www.exploit-db.com/exploits/43775/Exploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/44889/Exploit, Third Party Advisory, VDB Entry
- https://www.halfdog.net/Security/2017/LibcRealpathBufferUnderflow/Third Party Advisory
- http://seclists.org/oss-sec/2018/q1/38Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/102525Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040162Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:0805Third Party Advisory
- https://usn.ubuntu.com/3534-1/Third Party Advisory
- https://usn.ubuntu.com/3536-1/Third Party Advisory
- https://www.exploit-db.com/exploits/43775/Exploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/44889/Exploit, Third Party Advisory, VDB Entry
- https://www.halfdog.net/Security/2017/LibcRealpathBufferUnderflow/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-1000001?
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.
How severe is CVE-2018-1000001?
Severity scoring for CVE-2018-1000001 is pending analysis. The EPSS model estimates a 13.61% probability of exploitation in the next 30 days.
How do I fix CVE-2018-1000001?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2018-1000001?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST