libical ICS File use after free

CVSS Meta Temp Score
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CTI Interest Score
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8.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in libical. Affected by this vulnerability is an unknown functionality of the component ICS File Handler. Executing a manipulation can lead to use after free. The identification of this vulnerability is CVE-2016-9584. The attack may be launched remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in libical (affected version not known). It has been declared as critical. This vulnerability affects some unknown functionality of the component ICS File Handler. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

libical allows remote attackers to cause a denial of service (use-after-free) and possibly read heap memory via a crafted ics file.

The bug was discovered 01/18/2017. The weakness was shared 01/18/2017 (Website). The advisory is shared for download at openwall.com. This vulnerability was named CVE-2016-9584 since 11/23/2016. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 100479 (Debian DLA-959-1 : libical security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 170210 (SUSE Enterprise Linux Security Update for libical (SUSE-SU-2017:1989-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 5 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (100479) and SecurityFocus (BID 94948†). The entries VDB-96101 and VDB-96104 are related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.2
VulDB Meta Temp Score: 8.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.1
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 100479
Nessus Name: Debian DLA-959-1 : libical security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 870934
OpenVAS Name: Debian LTS Advisory ([SECURITY] [DLA 959-1] libical security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

11/23/2016 🔍
12/15/2016 +22 days 🔍
01/18/2017 +34 days 🔍
01/18/2017 +0 days 🔍
01/18/2017 +0 days 🔍
01/19/2017 +1 days 🔍
05/28/2017 +129 days 🔍
05/30/2017 +2 days 🔍
05/13/2026 +3270 days 🔍

Sourcesinfo

Advisory: openwall.com
Status: Confirmed

CVE: CVE-2016-9584 (🔍)
GCVE (CVE): GCVE-0-2016-9584
GCVE (VulDB): GCVE-100-95524
SecurityFocus: 94948 - libical CVE-2016-9584 Heap Based Buffer Overflow Vulnerability
OSVDB: - CVE-2016-9584 - libical - Use-After-Free Issue

See also: 🔍

Entryinfo

Created: 01/19/2017 09:46
Updated: 05/13/2026 16:18
Changes: 01/19/2017 09:46 (71), 07/24/2020 18:22 (7), 05/13/2026 16:18 (20)
Complete: 🔍
Cache ID: 216::103

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