EulerOS 2.0 SP8 : haproxy (EulerOS-SA-2019-1650)

Medium Nessus Plugin ID 126277

Synopsis

The remote EulerOS host is missing multiple security updates.

Description

According to the versions of the haproxy package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

- An out-of-bounds read issue was discovered in the HTTP/2 protocol decoder in HAProxy 1.8.x and 1.9.x through 1.9.0 which can result in a crash. The processing of the PRIORITY flag in a HEADERS frame requires 5 extra bytes, and while these bytes are skipped, the total frame length was not re-checked to make sure they were present in the frame.
(CVE-2018-20615)

- An issue was discovered in dns.c in HAProxy through 1.8.14. In the case of a compressed pointer, a crafted packet can trigger infinite recursion by making the pointer point to itself, or create a long chain of valid pointers resulting in stack exhaustion.(CVE-2018-20103)

- An out-of-bounds read in dns_validate_dns_response in dns.c was discovered in HAProxy through 1.8.14. Due to a missing check when validating DNS responses, remote attackers might be able read the 16 bytes corresponding to an AAAA record from the non-initialized part of the buffer, possibly accessing anything that was left on the stack, or even past the end of the 8193-byte buffer, depending on the value of accepted_payload_size.(CVE-2018-20102)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected haproxy packages.

See Also

http://www.nessus.org/u?971db689

Plugin Details

Severity: Medium

ID: 126277

File Name: EulerOS_SA-2019-1650.nasl

Version: 1.11

Type: local

Published: 2019/06/27

Updated: 2019/10/01

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS v3.0

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:haproxy, cpe:/o:huawei:euleros:2.0

Required KB Items: Host/local_checks_enabled, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/sp

Excluded KB Items: Host/EulerOS/uvp_version

Patch Publication Date: 2019/06/26

Reference Information

CVE: CVE-2018-20102, CVE-2018-20103