CVE-2016-4809

libarchive: Memory allocate error with symbolic links in cpio archives

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The archive_read_format_cpio_read_header function in archive_read_support_format_cpio.c in libarchive before 3.2.1 allows remote attackers to cause a denial of service (application crash) via a CPIO archive with a large symlink.

La función archive_read_format_cpio_read_header en archive_read_support_format_cpio.c en libarchive en versiones anteriores a 3.2.1 permite a atacantes remotos provocar denegación de servicio (caída de aplicación) a través de un archivo CPIO con un enlace simbólico grande.

A vulnerability was found in libarchive. A specially crafted cpio archive containing a symbolic link to a ridiculously large target path can cause memory allocation to fail, resulting in any attempt to view or extract the archive crashing.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-05-16 CVE Reserved
2016-07-14 CVE Published
2024-07-14 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation
CWE-770: Allocation of Resources Without Limits or Throttling

CAPEC

References (10)

URL	Tag	Source
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html	Third Party Advisory
http://www.securityfocus.com/bid/91813	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://github.com/libarchive/libarchive/commit/fd7e0c02	2019-12-27
https://github.com/libarchive/libarchive/issues/705	2019-12-27

URL	Date	SRC
http://rhn.redhat.com/errata/RHSA-2016-1844.html	2019-12-27
http://rhn.redhat.com/errata/RHSA-2016-1850.html	2019-12-27
http://www.debian.org/security/2016/dsa-3657	2019-12-27
https://bugzilla.redhat.com/show_bug.cgi?id=1347084	2016-09-12
https://security.gentoo.org/glsa/201701-03	2019-12-27
https://access.redhat.com/security/cve/CVE-2016-4809	2016-09-12

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Redhat Search vendor "Redhat"		Enterprise Linux Desktop Search vendor "Redhat" for product "Enterprise Linux Desktop"				6.0 Search vendor "Redhat" for product "Enterprise Linux Desktop" and version "6.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Hpc Node Search vendor "Redhat" for product "Enterprise Linux Hpc Node"				6.0 Search vendor "Redhat" for product "Enterprise Linux Hpc Node" and version "6.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Search vendor "Redhat" for product "Enterprise Linux Server"				6.0 Search vendor "Redhat" for product "Enterprise Linux Server" and version "6.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Workstation Search vendor "Redhat" for product "Enterprise Linux Workstation"				6.0 Search vendor "Redhat" for product "Enterprise Linux Workstation" and version "6.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Desktop Search vendor "Redhat" for product "Enterprise Linux Desktop"				7.0 Search vendor "Redhat" for product "Enterprise Linux Desktop" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Hpc Node Search vendor "Redhat" for product "Enterprise Linux Hpc Node"				7.0 Search vendor "Redhat" for product "Enterprise Linux Hpc Node" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Hpc Node Eus Search vendor "Redhat" for product "Enterprise Linux Hpc Node Eus"				7.2 Search vendor "Redhat" for product "Enterprise Linux Hpc Node Eus" and version "7.2"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Search vendor "Redhat" for product "Enterprise Linux Server"				7.0 Search vendor "Redhat" for product "Enterprise Linux Server" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Aus Search vendor "Redhat" for product "Enterprise Linux Server Aus"				7.2 Search vendor "Redhat" for product "Enterprise Linux Server Aus" and version "7.2"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Eus Search vendor "Redhat" for product "Enterprise Linux Server Eus"				7.2 Search vendor "Redhat" for product "Enterprise Linux Server Eus" and version "7.2"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Workstation Search vendor "Redhat" for product "Enterprise Linux Workstation"				7.0 Search vendor "Redhat" for product "Enterprise Linux Workstation" and version "7.0"		-		Affected
Oracle Search vendor "Oracle"		Linux Search vendor "Oracle" for product "Linux"				6 Search vendor "Oracle" for product "Linux" and version "6"		-		Affected
Oracle Search vendor "Oracle"		Linux Search vendor "Oracle" for product "Linux"				7 Search vendor "Oracle" for product "Linux" and version "7"		-		Affected
Libarchive Search vendor "Libarchive"		Libarchive Search vendor "Libarchive" for product "Libarchive"				<= 3.2.0 Search vendor "Libarchive" for product "Libarchive" and version " <= 3.2.0"		-		Affected