SB2023010630 - openEuler 22.03 LTS update for curl 

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Main Vulnerability Database SB2023010630

SB2023010630 - openEuler 22.03 LTS update for curl

Published: January 6, 2023

Security Bulletin ID SB2023010630
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

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

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Use-after-free (CVE-ID: CVE-2022-43552)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error while processing denied requests from HTTP proxies when using SMB or TELNET protocols. A remote attacker can trigger a use-after-free error and crash the application.



2) Security features bypass (CVE-ID: CVE-2022-43551)

The vulnerability allows an attacker to gain access to sensitive information.

The vulnerability exists in the way curl handles IDN characters in hostnames. The HSTS mechanism could be bypassed if the hostname in the given URL first uses IDN characters that get replaced to ASCII counterparts as part of the IDN conversion. Then in a subsequent request it does not detect the HSTS state and makes a clear text transfer.


Remediation

Install update from vendor's website.

References