SB2019081526 - Gentoo update for libarchive

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Main Vulnerability Database SB2019081526

SB2019081526 - Gentoo update for libarchive

Published: August 15, 2019 Updated: August 25, 2019

Security Bulletin ID SB2019081526
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Denial of service

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-2017-14166)

CWE-ID: CWE-125 - Out-of-bounds read

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


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

The vulnerability exists due to a boundary error in libarchive 3.3.2. A remote attacker can trigger xml_data heap-based buffer over-read and application crash via a specially crafted xar archive, related to the mishandling of empty strings in the atol8 function in archive_read_support_format_xar.c.


2) Out-of-bounds read (CVE-ID: CVE-2017-14501)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/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 vulnerability exists due to out-of-bounds read condition in the parse_file_info function, as defined in the archive_read_support_format_iso9660.c source code file when extracting ISO 9660 files. A remote attacker can trick the victim into extracting an ISO 9660 file that submits malicious input and cause the service to crash.


3) Off-by-one (CVE-ID: CVE-2017-14502)

CWE-ID: CWE-193 - Off-by-one Error

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/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 vulnerability exists due to off-by-one error for UTF-16 names in RAR archives. A remote attacker can trigger an out-of-bounds read in archive_read_format_rar_read_header and cause the service to crash.

4) Out-of-bounds read (CVE-ID: CVE-2017-14503)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/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 vulnerability exists due to out-of-bounds read within lha_read_data_none() in archive_read_support_format_lha.c when extracting a specially crafted lha archive. A remote attacker can trigger an out-of-bounds read, related to lha_crc16 and cause the service to crash.

Remediation

Install update from vendor's website.

References