SB2018110707 - Arch Linux update for lib32-libcurl-compat

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Main Vulnerability Database SB2018110707

SB2018110707 - Arch Linux update for lib32-libcurl-compat

Published: November 7, 2018

Security Bulletin ID SB2018110707
Severity
High
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Integer overflow (CVE-ID: CVE-2018-16839)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow in processing the Curl_auth_create_plain_message name and password when handling malicious input. A remote unauthenticated attacker can send specially crafted SASL password data, trigger memory corruption and execute arbitrary code with elevated privileges. The affected function can be invoked using POP3(S), IMAP(S), or SMTP(S).

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


2) Use-after-free error (CVE-ID: CVE-2018-16840)

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

The vulnerability exists due to use-after-free error in closing an easy handle in the 'Curl_close()' function. A remote unauthenticated attacker can specially crafted data, trigger memory corruption and cause the service to crash.


Remediation

Install update from vendor's website.

References