The offset2lib patch as used by the Linux Kernel contains a vulnerability, if RLIMIT_STACK is set to RLIM_INFINITY and 1 Gigabyte of memory is allocated (the maximum under the 1/4 restriction) then the stack will be grown down to 0x80000000, and as the PIE binary is mapped above 0x80000000 the minimum distance between the end of the PIE binary's read-write segment and the start of the stack becomes small enough that the stack guard page can be jumped over by an attacker. This affects Linux Kernel version 4.11.5. This is a different issue than CVE-2017-1000370 and CVE-2017-1000365. This issue appears to be limited to i386 based systems.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux | — | Upgrade kernel | Jun 23, 2017 | Jun 19, 2017 |
| Centos_linux | — | Upgrade kernel | Apr 23, 2020 | Jun 19, 2017 |
| Debian | — | Upgrade linux | Sep 25, 2017 | Jun 19, 2017 |
| Oracle_linux | — | Upgrade kernel | Apr 24, 2020 | Jun 19, 2017 |
| Redhat_linux | — | No solution existsUpgrade kernel | Apr 23, 2020 | Jun 19, 2017 |
| Ubuntu | — | Upgrade linux-fipsUpgrade linuxUpgrade linux-raspi2Upgrade linux-hwe-edgeUpgrade linux-awsUpgrade linux-gkeUpgrade linux-lts-xenialUpgrade linux-snapdragonUpgrade linux-gcpUpgrade linux-hwe | Nov 19, 2024 | Jun 19, 2017 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Jun 19, 2017 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub