CVE-2018-6485
Vulnerability Summary
Timeline
Description
An integer overflow in the implementation of the posix_memalign in memalign functions in the GNU C Library (aka glibc or libc6) 2.26 and earlier could cause these functions to return a pointer to a heap area that is too small, potentially leading to heap corruption.
CVSS Metrics
- v3.0•CRITICAL•Score: 9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- v2.0•HIGH•Score: 7.5AV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS Trends
Current EPSS score: 1.09%• Percentile: 78%
Techniques & Countermeasures
- CWE-190•Integer Overflow or Wraparound
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
- CWE-787•Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.
Affected Systems
- gnu•glibc
≤ 2.26
- netapp•cloud_backup
na
- netapp•data_ontap_edge
na
- netapp•element_software
na
- netapp•element_software_management
na
- netapp•steelstore_cloud_integrated_storage
na
- netapp•storage_replication_adapter
≥ 7.2
- netapp•vasa_provider
≥ 7.2 | 6.x
- netapp•virtual_storage_console
≥ 7.2 | na
- oracle•communications_session_border_controller
8.0.0 | 8.1.0 | 8.2.0
- oracle•enterprise_communications_broker
3.0.0 | 3.1.0
- redhat•enterprise_linux_desktop
7.0
- redhat•enterprise_linux_server
7.0
- redhat•enterprise_linux_workstation
7.0
- redhat•virtualization_host
4.0
References (9)
- https://sourceware.org/bugzilla/show_bug.cgi?id=22343
- http://www.securityfocus.com/bid/102912
- http://bugs.debian.org/878159
- https://access.redhat.com/errata/RHSA-2018:3092
- https://security.netapp.com/advisory/ntap-20190404-0003/
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
- https://access.redhat.com/errata/RHBA-2019:0327
- https://usn.ubuntu.com/4218-1/
- https://usn.ubuntu.com/4416-1/