CVE-2018-11237
What it is
An AVX-512-optimized implementation of the mempcpy function in the GNU C Library (aka glibc or libc6) 2.27 and earlier may write data beyond the target buffer, leading to a buffer overflow in __mempcpy_avx512_no_vzeroupper.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.9% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.9% in the next 30 days (EPSS).
- Severity: 7.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.9% · EPSS, next 30 days
- Weakness
- CWE-787 · Out-of-bounds write
- Record status
- Modified
Affected
- Gnu Glibc ≤ 2.27
- Redhat Virtualization Host 4.0
- Redhat Enterprise Linux Desktop 7.0
- Redhat Enterprise Linux Server 7.0
- Redhat Enterprise Linux Workstation 7.0
- Oracle Communications Session Border Controller 8.0.0
- Oracle Communications Session Border Controller 8.1.0
- Oracle Communications Session Border Controller 8.2.0
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2018-11237.md and follow it. Check whether this project is affected by CVE-2018-11237. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://sourceware.org/bugzilla/show_bug.cgi?id=23196
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
- https://sourceware.org/bugzilla/show_bug.cgi?id=23196
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
References
- http://www.securityfocus.com/bid/104256
- https://access.redhat.com/errata/RHBA-2019:0327
- https://access.redhat.com/errata/RHSA-2018:3092
- https://security.netapp.com/advisory/ntap-20190329-0001/
- https://security.netapp.com/advisory/ntap-20190401-0001/
- https://sourceware.org/bugzilla/show_bug.cgi?id=23196
- https://usn.ubuntu.com/4416-1/
- https://www.exploit-db.com/exploits/44750/
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
- http://www.securityfocus.com/bid/104256
- https://access.redhat.com/errata/RHBA-2019:0327
- https://access.redhat.com/errata/RHSA-2018:3092
- https://security.netapp.com/advisory/ntap-20190329-0001/
- https://security.netapp.com/advisory/ntap-20190401-0001/
- https://sourceware.org/bugzilla/show_bug.cgi?id=23196
- https://usn.ubuntu.com/4416-1/
- https://www.exploit-db.com/exploits/44750/
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html