ArchLinux: 201901-15: haproxy: denial of service
Summary
- CVE-2018-20102 (denial of service)
A stack-based out-of-bounds read has been found in HAProxy before
1.8.15, in the dns_validate_dns_response() function in dns.c, where it
can be triggered by a crafted DNS packet.
- CVE-2018-20103 (denial of service)
A stack-exhaustion issue has been found in HAProxy before 1.8.15, in
the dns_read_name() function in dns.c, where an infinite recursion can
be triggered via a crafted DNS packet.
Resolution
Upgrade to 1.9.0-1.
# pacman -Syu "haproxy>=1.9.0-1"
The problems have been fixed upstream in version 1.9.0.
References
https://www.mail-archive.com/haproxy@formilux.org/msg32055.html https://git.haproxy.org/?p=haproxy-1.8.git;a=commitdiff;h=2e53fe850be462dab2c1141f044a94d248d68bfe https://git.haproxy.org/?p=haproxy-1.8.git;a=commitdiff;h=12e27845513f87fe2df88e5795d0273f0b992a91 https://git.haproxy.org/?p=haproxy-1.8.git;a=commitdiff;h=2b514b24f71af8ff8c6593636850b9a312a05278 https://security.archlinux.org/CVE-2018-20102 https://security.archlinux.org/CVE-2018-20103
Workaround
None.