Input validation error in GNU C Library (glibc) - CVE-2019-6488
Published: January 22, 2019 / Updated: March 1, 2019
Vulnerability identifier: #VU17106
CSH Severity: Low
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-6488
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in __memmove_avx_unaligned_erms in sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S during a memcpy due to application that runs on the x32 architecture incorrectly attempts to use a 64-bit register for size_t in assembly codes. A remote attacker can pass specially crafted data to the application using an affected library and cause segmentation fault.
Affected software
GNU C Library (glibc)
Gentoo Linux
Netcool Operations Insight
IBM Cloud Transformation Advisor
Gentoo Linux
Netcool Operations Insight
IBM Cloud Transformation Advisor
How to mitigate CVE-2019-6488
Install updates from vendor's website.
GNU C Library (glibc) - update to 2.29
Netcool Operations Insight - update to 1.6.8
IBM Cloud Transformation Advisor - update to 3.10.0
Netcool Operations Insight - update to 1.6.8
IBM Cloud Transformation Advisor - update to 3.10.0