CVE-2015-5523

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The ParseValue function in lexer.c in tidy before 4.9.31 allows remote attackers to cause a denial of service (crash) via vectors involving multiple whitespace characters before an empty href, which triggers a large memory allocation.

Vulnerabilidad en la función ParseValue en lexer.c en tidy en versiones anteriores a 4.9.31, permite a atacantes remotos provocar una denegación de servicio (caída) a través de vectores implicando múltiples espacios en blanco antes de un href vacío, lo que desencadena una asignación de memoria de gran tamaño.

*Credits: N/A

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

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-07-14 CVE Reserved
2015-07-20 CVE Published
2024-08-06 CVE Updated
2024-08-06 First Exploit
2024-12-17 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CAPEC

References (14)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2015/07/15/3	Mailing List
http://www.securityfocus.com/bid/75037	Vdb Entry
http://www.securitytracker.com/id/1033703	Vdb Entry
https://support.apple.com/HT205212	Third Party Advisory
https://support.apple.com/HT205213	Third Party Advisory
https://support.apple.com/HT205267	Third Party Advisory

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2015/06/04/2	2024-08-06
http://www.openwall.com/lists/oss-security/2015/07/13/7	2024-08-06
https://github.com/htacg/tidy-html5/issues/217#issuecomment-108565501	2024-08-06

URL	Date	SRC

URL	Date	SRC
http://lists.apple.com/archives/security-announce/2015/Sep/msg00001.html	2016-12-08
http://lists.apple.com/archives/security-announce/2015/Sep/msg00005.html	2016-12-08
http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html	2016-12-08
http://www.debian.org/security/2015/dsa-3309	2016-12-08
http://www.ubuntu.com/usn/USN-2695-1	2016-12-08

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
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"				15.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "15.04"		-		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
Apple Search vendor "Apple"		Iphone Os Search vendor "Apple" for product "Iphone Os"				<= 8.2 Search vendor "Apple" for product "Iphone Os" and version " <= 8.2"		-		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				<= 10.6.8 Search vendor "Apple" for product "Mac Os X" and version " <= 10.6.8"		-		Affected
Apple Search vendor "Apple"		Watchos Search vendor "Apple" for product "Watchos"				<= 1.0.1 Search vendor "Apple" for product "Watchos" and version " <= 1.0.1"		-		Affected
Htacg Search vendor "Htacg"		Tidy Search vendor "Htacg" for product "Tidy"				<= 4.9.30 Search vendor "Htacg" for product "Tidy" and version " <= 4.9.30"		-		Affected