HIGH · 8.8

CVE-2018-1000877

libarchive version commit 416694915449219d505531b1096384f3237dd6cc onwards (release v3.1.0 onwards) contains a CWE-415: Double Free vulnerability in RAR decoder - libarchive/archive_read_support_forma...

Vulnerability Description

libarchive version commit 416694915449219d505531b1096384f3237dd6cc onwards (release v3.1.0 onwards) contains a CWE-415: Double Free vulnerability in RAR decoder - libarchive/archive_read_support_format_rar.c, parse_codes(), realloc(rar->lzss.window, new_size) with new_size = 0 that can result in Crash/DoS. This attack appear to be exploitable via the victim must open a specially crafted RAR archive.

CVSS Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
LibarchiveLibarchive>= 3.1.0, < 3.4.0
DebianDebian Linux8.0
CanonicalUbuntu Linux14.04
FedoraprojectFedora28
RedhatEnterprise Linux Desktop7.0
RedhatEnterprise Linux Server7.0
RedhatEnterprise Linux Workstation7.0

Related Weaknesses (CWE)

References

FAQ

What is CVE-2018-1000877?

CVE-2018-1000877 is a vulnerability with a CVSS score of 8.8 (HIGH). libarchive version commit 416694915449219d505531b1096384f3237dd6cc onwards (release v3.1.0 onwards) contains a CWE-415: Double Free vulnerability in RAR decoder - libarchive/archive_read_support_forma...

How severe is CVE-2018-1000877?

CVE-2018-1000877 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-1000877?

Check the references section above for vendor advisories and patch information. Affected products include: Libarchive Libarchive, Debian Debian Linux, Canonical Ubuntu Linux, Fedoraproject Fedora, Redhat Enterprise Linux Desktop.