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CVE-2018-1000877

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Date: December 20, 2018

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.

Language: C

Severity Score

Related Resources (19)

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00055.html
https://access.redhat.com/errata/RHSA-2019:3698
https://lists.debian.org/debian-lts-announce/2018/12/msg00011.html
https://access.redhat.com/errata/RHSA-2019:2298
http://www.securityfocus.com/bid/106324
https://github.com/libarchive/libarchive/pull/1105/commits/021efa522ad729ff0f5806c4ce53e4a6cc1daa31
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W645KCLWFDBDGFJHG57WOVXGE62QSIJI/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZVXA7PHINVT6DFF6PRLTDTVTXKDLVHNF/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CBOCC2M6YGPZA6US43YK4INPSJZZHRTG/
https://access.redhat.com/security/cve/CVE-2018-1000877
https://security-tracker.debian.org/tracker/CVE-2018-1000877
https://www.debian.org/security/2018/dsa-4360
https://nvd.nist.gov/vuln/detail/CVE-2018-1000877
https://bugs.launchpad.net/ubuntu/+source/libarchive/+bug/1794909
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00015.html
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00012.html
https://usn.ubuntu.com/3859-1/
https://github.com/libarchive/libarchive/pull/1105
https://www.mend.io/vulnerability-database/CVE-2018-1000877

Severity Score

Weakness Type (CWE)

Double Free

CWE-415

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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