CVE-2017-1000370
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…
Does this matter?
2 public exploits are published in Exploit-DB (verified) and the impact is high, while EPSS rates exploitation at 2.3%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use.
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.25% probability · 83th percentile
- Public exploits
- 2 in Exploit-DB · verified · first 28 June 2017
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- cve@mitre.org
EPSS 2.3% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (2)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
| EDB-ID | Title | Type | Published | Verified |
|---|---|---|---|---|
| EDB-42274source ↗ | Linux Kernel (Debian 7/8/9/10 / Fedora 23/24/25 / CentOS 5.3/5.11/6.0/6.8/7.2.1511) - 'ldso_hwcap Stack Clash' Local Privilege Escalationlinux_x86 · Qualys Corporation | local | 28 June 2017 | yes |
| EDB-42273source ↗ | Linux Kernel - 'offset2lib' Stack Clashlinux_x86 · Qualys Corporation | local | 28 June 2017 | yes |
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.