SB2018090303 - Debian update for trafficserver

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Main Vulnerability Database SB2018090303

SB2018090303 - Debian update for trafficserver

Published: September 3, 2018

Security Bulletin ID SB2018090303
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 25% Low 75%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 vulnerabilities.


1) Segmentation fault (CVE-ID: CVE-2018-1318)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 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/E:U/U:Green


The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to a segmentation fault when adding method ACLs in remap.config. A remote attacker can send a specially crafted request and cause the service to crash.


2) Security restrictions bypass (CVE-ID: CVE-2018-8004)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The vulnerability exists due to multiple HTTP smuggling and cache poisoning issues when clients make malicious requests. A remote attacker can send a specially crafted request and bypass security restrictions to conduct further attacks.


3) Information disclosure (CVE-ID: CVE-2018-8005)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.

The vulnerability exists due to the reading of the entire object from cache. A remote attacker can use a range request containing multiple ranges to obtain sensitive information.


4) Security restrictions bypass (CVE-ID: CVE-2018-8040)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The vulnerability exists due to an error when pages are rendered using the ESI plugin. A remote attacker can bypass security restrictions and gain header variable access in the ESI plugin.


Remediation

Install update from vendor's website.

References