CVE-2016-0773

postgresql: case insensitive range handling integer overflow leading to buffer overflow

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

PostgreSQL before 9.1.20, 9.2.x before 9.2.15, 9.3.x before 9.3.11, 9.4.x before 9.4.6, and 9.5.x before 9.5.1 allows remote attackers to cause a denial of service (infinite loop or buffer overflow and crash) via a large Unicode character range in a regular expression.

PostgreSQL en versiones anteriores a 9.1.20, 9.2.x en versiones anteriores a 9.2.15, 9.3.x en versiones anteriores a 9.3.11, 9.4.x en versiones anteriores a 9.4.6 y 9.5.x en versiones anteriores a 9.5.1 permite a atacantes remotos provocar una denegación de servicio (bucle infinito o desbordamiento de buffer y caída) a través de un amplio rango de caracteres Unicode en una expresión regular.

An integer overflow flaw, leading to a heap-based buffer overflow, was found in the PostgreSQL handling code for regular expressions. A remote attacker could use a specially crafted regular expression to cause PostgreSQL to crash or possibly execute arbitrary code.

*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

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-12-16 CVE Reserved
2016-02-12 CVE Published
2023-05-20 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-122: Heap-based Buffer Overflow

CAPEC

References (25)

URL	Tag	Source
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html	X_refsource_confirm
http://www.postgresql.org/docs/current/static/release-9-1-20.html	X_refsource_confirm
http://www.postgresql.org/docs/current/static/release-9-2-15.html	X_refsource_confirm
http://www.postgresql.org/docs/current/static/release-9-3-11.html	X_refsource_confirm
http://www.postgresql.org/docs/current/static/release-9-4-6.html	X_refsource_confirm
http://www.postgresql.org/docs/current/static/release-9-5-1.html	X_refsource_confirm
http://www.securityfocus.com/bid/83184	Vdb Entry
http://www.securitytracker.com/id/1035005	Vdb Entry
https://kc.mcafee.com/corporate/index?page=content&id=SB10152	X_refsource_confirm
https://puppet.com/security/cve/CVE-2016-0773	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177820.html	2017-12-09
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177878.html	2017-12-09
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00049.html	2017-12-09
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00052.html	2017-12-09
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00054.html	2017-12-09
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00056.html	2017-12-09
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00016.html	2017-12-09
http://rhn.redhat.com/errata/RHSA-2016-1060.html	2017-12-09
http://www.debian.org/security/2016/dsa-3475	2017-12-09
http://www.debian.org/security/2016/dsa-3476	2017-12-09
http://www.postgresql.org/about/news/1644	2017-12-09
http://www.ubuntu.com/usn/USN-2894-1	2017-12-09
https://security.gentoo.org/glsa/201701-33	2017-12-09
https://access.redhat.com/security/cve/CVE-2016-0773	2016-05-12
https://bugzilla.redhat.com/show_bug.cgi?id=1303832	2016-05-12

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Postgresql Search vendor "Postgresql"		Postgresql Search vendor "Postgresql" for product "Postgresql"				<= 9.1.19 Search vendor "Postgresql" for product "Postgresql" and version " <= 9.1.19"		-		Affected
Postgresql Search vendor "Postgresql"		Postgresql Search vendor "Postgresql" for product "Postgresql"				9.2 Search vendor "Postgresql" for product "Postgresql" and version "9.2"		-		Affected
Postgresql Search vendor "Postgresql"		Postgresql Search vendor "Postgresql" for product "Postgresql"				9.2.1 Search vendor "Postgresql" for product "Postgresql" and version "9.2.1"		-		Affected
Postgresql Search vendor "Postgresql"		Postgresql Search vendor "Postgresql" for product "Postgresql"				9.2.2 Search vendor "Postgresql" for product "Postgresql" and version "9.2.2"		-		Affected
Postgresql Search vendor "Postgresql"		Postgresql Search vendor "Postgresql" for product "Postgresql"				9.2.3 Search vendor "Postgresql" for product "Postgresql" and version "9.2.3"		-		Affected
Postgresql Search vendor "Postgresql"		Postgresql Search vendor "Postgresql" for product "Postgresql"				9.2.4 Search vendor "Postgresql" for product "Postgresql" and version "9.2.4"		-		Affected
Postgresql Search vendor "Postgresql"		Postgresql Search vendor "Postgresql" for product "Postgresql"				9.2.5 Search vendor "Postgresql" for product "Postgresql" and version "9.2.5"		-		Affected
Postgresql Search vendor "Postgresql"		Postgresql Search vendor "Postgresql" for product "Postgresql"				9.2.6 Search vendor "Postgresql" for product "Postgresql" and version "9.2.6"		-		Affected
Postgresql Search vendor "Postgresql"		Postgresql Search vendor "Postgresql" for product "Postgresql"				9.2.7 Search vendor "Postgresql" for product "Postgresql" and version "9.2.7"		-		Affected
Postgresql Search vendor "Postgresql"		Postgresql Search vendor "Postgresql" for product "Postgresql"				9.2.8 Search vendor "Postgresql" for product "Postgresql" and version "9.2.8"		-		Affected
Postgresql Search vendor "Postgresql"		Postgresql Search vendor "Postgresql" for product "Postgresql"				9.2.9 Search vendor "Postgresql" for product "Postgresql" and version "9.2.9"		-		Affected
Postgresql Search vendor "Postgresql"		Postgresql Search vendor "Postgresql" for product "Postgresql"				9.2.10 Search vendor "Postgresql" for product "Postgresql" and version "9.2.10"		-		Affected
Postgresql Search vendor "Postgresql"		Postgresql Search vendor "Postgresql" for product "Postgresql"				9.2.11 Search vendor "Postgresql" for product "Postgresql" and version "9.2.11"		-		Affected
Postgresql Search vendor "Postgresql"		Postgresql Search vendor "Postgresql" for product "Postgresql"				9.2.12 Search vendor "Postgresql" for product "Postgresql" and version "9.2.12"		-		Affected
Postgresql Search vendor "Postgresql"		Postgresql Search vendor "Postgresql" for product "Postgresql"				9.2.13 Search vendor "Postgresql" for product "Postgresql" and version "9.2.13"		-		Affected
Postgresql Search vendor "Postgresql"		Postgresql Search vendor "Postgresql" for product "Postgresql"				9.2.14 Search vendor "Postgresql" for product "Postgresql" and version "9.2.14"		-		Affected
Postgresql Search vendor "Postgresql"		Postgresql Search vendor "Postgresql" for product "Postgresql"				9.4 Search vendor "Postgresql" for product "Postgresql" and version "9.4"		-		Affected
Postgresql Search vendor "Postgresql"		Postgresql Search vendor "Postgresql" for product "Postgresql"				9.4.1 Search vendor "Postgresql" for product "Postgresql" and version "9.4.1"		-		Affected
Postgresql Search vendor "Postgresql"		Postgresql Search vendor "Postgresql" for product "Postgresql"				9.4.2 Search vendor "Postgresql" for product "Postgresql" and version "9.4.2"		-		Affected
Postgresql Search vendor "Postgresql"		Postgresql Search vendor "Postgresql" for product "Postgresql"				9.4.3 Search vendor "Postgresql" for product "Postgresql" and version "9.4.3"		-		Affected
Postgresql Search vendor "Postgresql"		Postgresql Search vendor "Postgresql" for product "Postgresql"				9.4.4 Search vendor "Postgresql" for product "Postgresql" and version "9.4.4"		-		Affected
Postgresql Search vendor "Postgresql"		Postgresql Search vendor "Postgresql" for product "Postgresql"				9.4.5 Search vendor "Postgresql" for product "Postgresql" and version "9.4.5"		-		Affected
Postgresql Search vendor "Postgresql"		Postgresql Search vendor "Postgresql" for product "Postgresql"				9.5 Search vendor "Postgresql" for product "Postgresql" and version "9.5"		-		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
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				7.0 Search vendor "Debian" for product "Debian Linux" and version "7.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected