CVE-2015-1338

Apport 2.19 (Ubuntu 15.04) - Local Privilege Escalation

Severity Score

5.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

kernel_crashdump in Apport before 2.19 allows local users to cause a denial of service (disk consumption) or possibly gain privileges via a (1) symlink or (2) hard link attack on /var/crash/vmcore.log.

kernel_crashdump en Apport en versiones anteriores a 2.19, permite a usuarios locales provocar una denegación de servicio (consumo de disco) o posiblemente obtener privilegios a través de un ataque de enlace (1) simbólico o (2) duro en /var/crash/vmcore.log.

Halfdog discovered that Apport incorrectly handled kernel crash dump files. A local attacker could use this issue to cause a denial of service, or possibly elevate privileges. The default symlink protections for affected releases should reduce the vulnerability to a denial of service.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-01-22 CVE Reserved
2015-09-24 CVE Published
2015-09-26 First Exploit
2024-08-06 CVE Updated
2025-06-21 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-59: Improper Link Resolution Before File Access ('Link Following')

CAPEC

References (8)

URL	Tag	Source
http://seclists.org/fulldisclosure/2015/Sep/101	Mailing List
https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1492570	X_refsource_confirm

URL	Date	SRC
https://packetstorm.news/files/id/133723	2015-09-26
https://www.exploit-db.com/exploits/38353	2024-08-06
http://packetstormsecurity.com/files/133723/Ubuntu-Apport-kernel_crashdump-Symlink.html	2024-08-06
http://www.halfdog.net/Security/2015/ApportKernelCrashdumpFileAccessVulnerabilities	2024-08-06

URL	Date	SRC
https://launchpad.net/apport/trunk/2.19	2015-10-02

URL	Date	SRC
http://www.ubuntu.com/usn/USN-2744-1	2015-10-02

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Apport Project Search vendor "Apport Project"		Apport Search vendor "Apport Project" for product "Apport"				<= 2.18.1 Search vendor "Apport Project" for product "Apport" and version " <= 2.18.1"		-		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"				15.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "15.04"		-		Affected