SB2017083020 - Fedora 25 update for libidn2

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Main Vulnerability Database SB2017083020

SB2017083020 - Fedora 25 update for libidn2

Published: August 30, 2017 Updated: April 24, 2025

Security Bulletin ID SB2017083020
CSH Severity
High
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Integer overflow (CVE-ID: CVE-2017-14061)

CWE-ID: CWE-190 - Integer overflow

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


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

The vulnerability exists due to integer overflow in the _isBidi function in bidi.c in Libidn2 before 2.0.4. A remote attacker can cause a denial of service or possibly have unspecified other impact.

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


2) Integer overflow (CVE-ID: CVE-2017-14062)

CWE-ID: CWE-190 - Integer overflow

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


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

The vulnerability exists due to integer overflow in the decode_digit function in puny_decode.c in Libidn2 before 2.0.4. A remote attacker can cause a denial of service or possibly have unspecified other impact.

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


Remediation

Install update from vendor's website.

References