Out-of-bounds read in dhcpcd - CVE-2019-11766
Published: May 5, 2019 / Updated: August 8, 2020
Vulnerability identifier: #VU35943
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-11766
CWE-ID: CWE-125
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 buffer over-read in the D6_OPTION_PD_EXCLUDE feature. A remote attacker can perform a denial of service attack.
Affected software
dhcpcd
How to mitigate CVE-2019-11766
Update to version 7.2.2.
dhcpcd - update to 7.2.2
External References
- http://www.securityfocus.com/bid/108172
- https://bugs.debian.org/928440
- https://roy.marples.name/archives/dhcpcd-discuss/0002428.html
- https://roy.marples.name/cgit/dhcpcd.git/commit/?h=dhcpcd-7&id=896ef4a54b0578985e5e1360b141593f1d62837b
- https://roy.marples.name/cgit/dhcpcd.git/commit/?h=dhcpcd-7&id=c1ebeaafeb324bac997984abdcee2d4e8b61a8a8