SB2018010823 - Fedora 27 update for irssi

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Main Vulnerability Database SB2018010823

SB2018010823 - Fedora 27 update for irssi

Published: January 8, 2018 Updated: April 24, 2025

Security Bulletin ID SB2018010823
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 vulnerabilities.


1) Buffer over-read (CVE-ID: CVE-2018-5205)

CWE-ID: CWE-126 - Buffer over-read

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 weakness exists due to data access beyond the end of the string when using incomplete escape codes. A remote attacker can trigger buffer over-read and gain access to potentially sensitive information.

2) NULL pointer dereference (CVE-ID: CVE-2018-5206)

CWE-ID: CWE-476 - NULL Pointer Dereference

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


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

The weakness exists due to NULL pointer dereference when the channel topic is set without specifying a sender. A remote attacker can cause the service to crash.

3) Buffer over-read (CVE-ID: CVE-2018-5207)

CWE-ID: CWE-126 - Buffer over-read

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 weakness exists due to data access beyond the end of the string when using an incomplete variable argument. A remote attacker can trigger buffer over-read and gain access to potentially sensitive information.

4) Buffer over-read (CVE-ID: CVE-2018-5208)

CWE-ID: CWE-126 - Buffer over-read

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


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

The weakness exists due to a calculation error in the completion code that triggers heap buffer overflow when completing certain strings. A remote attacker can cause the service to crash.

Remediation

Install update from vendor's website.

References