CVE-2015-8934

libarchive: out of bounds heap read in RAR parser

Severity Score

5.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The copy_from_lzss_window function in archive_read_support_format_rar.c in libarchive 3.2.0 and earlier allows remote attackers to cause a denial of service (out-of-bounds heap read) via a crafted rar file.

La función copy_from_lzss_window en archive_read_support_format_rar.c en libarchive 3.2.0 y versiones anteriores permite a atacantes remotos provocar una denegación de servicio (lectura de memoria dinámica fuera de rango) a través de un archivo rar manipulado.

A vulnerability was found in libarchive. A specially crafted RAR file could cause the application to read memory beyond the end of the decompression buffer.

The libarchive programming library can create and read several different streaming archive formats, including GNU tar, cpio, and ISO 9660 CD-ROM images. Libarchive is used notably in the bsdtar utility, scripting language bindings such as python-libarchive, and several popular desktop file managers. Security Fix: A flaw was found in the way libarchive handled hardlink archive entries of non-zero size. Combined with flaws in libarchive's file system sandboxing, this issue could cause an application using libarchive to overwrite arbitrary files with arbitrary data from the archive.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-06-17 CVE Reserved
2016-07-14 CVE Published
2024-08-06 CVE Updated
2024-08-06 First Exploit
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-125: Out-of-bounds Read

CAPEC

References (14)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2016/06/17/2	Mailing List
http://www.openwall.com/lists/oss-security/2016/06/17/5	Mailing List
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html	X_refsource_confirm
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html	X_refsource_confirm
http://www.securityfocus.com/bid/91409	Vdb Entry
https://blog.fuzzing-project.org/47-Many-invalid-memory-access-issues-in-libarchive.html	Third Party Advisory

URL	Date	SRC
https://github.com/libarchive/libarchive/issues/521	2024-08-06

URL	Date	SRC

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00025.html	2018-01-05
http://rhn.redhat.com/errata/RHSA-2016-1844.html	2018-01-05
http://www.debian.org/security/2016/dsa-3657	2018-01-05
http://www.ubuntu.com/usn/USN-3033-1	2018-01-05
https://security.gentoo.org/glsa/201701-03	2018-01-05
https://access.redhat.com/security/cve/CVE-2015-8934	2016-09-12
https://bugzilla.redhat.com/show_bug.cgi?id=1349229	2016-09-12

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Suse Search vendor "Suse"		Linux Enterprise Desktop Search vendor "Suse" for product "Linux Enterprise Desktop"				12 Search vendor "Suse" for product "Linux Enterprise Desktop" and version "12"		sp1		Affected
Suse Search vendor "Suse"		Linux Enterprise Server Search vendor "Suse" for product "Linux Enterprise Server"				12 Search vendor "Suse" for product "Linux Enterprise Server" and version "12"		sp1		Affected
Suse Search vendor "Suse"		Linux Enterprise Software Development Kit Search vendor "Suse" for product "Linux Enterprise Software Development Kit"				12 Search vendor "Suse" for product "Linux Enterprise Software Development Kit" and version "12"		sp1		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				15.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "15.10"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		lts		Affected
Libarchive Search vendor "Libarchive"		Libarchive Search vendor "Libarchive" for product "Libarchive"				<= 3.1.901a Search vendor "Libarchive" for product "Libarchive" and version " <= 3.1.901a"		-		Affected