CVE-2017-1000370
Last modified
CVE-2017-1000370 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. The offset2lib patch as used in the Linux Kernel contains a vulnerability that allows a PIE binary to be execve()'ed with 1GB of arguments or environmental strings then the stack occupies the address 0x80000000 and the PIE binary is mapped above 0x40000000 nullifying the protection of the offset2lib patch. This affects Linux Kernel version 4.11.5 and earlier. EPSS estimates a 2.25% chance of exploitation in the next 30 days.
Description
The offset2lib patch as used in the Linux Kernel contains a vulnerability that allows a PIE binary to be execve()'ed with 1GB of arguments or environmental strings then the stack occupies the address 0x80000000 and the PIE binary is mapped above 0x40000000 nullifying the protection of the offset2lib patch. This affects Linux Kernel version 4.11.5 and earlier. This is a different issue than CVE-2017-1000371. This issue appears to be limited to i386 based systems.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.1, < 4.1.43 |
| Linux | Linux Kernel | >= 4.2, < 4.4.78 |
| Linux | Linux Kernel | >= 4.5, < 4.9.39 |
| Linux | Linux Kernel | >= 4.10, < 4.11.12 |
| Linux | Linux Kernel | >= 4.12, < 4.12.3 |
References
- http://www.debian.org/security/2017/dsa-3981Third Party Advisory
- http://www.securityfocus.com/bid/99149Third Party Advisory, VDB Entry
- https://access.redhat.com/security/cve/CVE-2017-1000370Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/42273/Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/42274/Third Party Advisory, VDB Entry
- https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txtThird Party Advisory
- http://www.debian.org/security/2017/dsa-3981Third Party Advisory
- http://www.securityfocus.com/bid/99149Third Party Advisory, VDB Entry
- https://access.redhat.com/security/cve/CVE-2017-1000370Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/42273/Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/42274/Third Party Advisory, VDB Entry
- https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txtThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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