libical 0.47/1.0 icalparser_parse_string out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in libical 0.47/1.0. This affects the function icalparser_parse_string. Such manipulation leads to out-of-bounds. This vulnerability is traded as CVE-2016-5827. The attack may be launched remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in libical 0.47/1.0. Affected by this issue is the function icalparser_parse_string. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is availability. CVE summarizes:

The icaltime_from_string function in libical 0.47 and 1.0 allows remote attackers to cause a denial of service (out-of-bounds heap read) via a crafted string to the icalparser_parse_string function.

The bug was discovered 06/25/2016. The weakness was shared 01/27/2017 (Website). The advisory is shared for download at openwall.com. This vulnerability is handled as CVE-2016-5827 since 06/23/2016. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 216 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 102058 (openSUSE Security Update : libical (openSUSE-2017-869)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE 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 7 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (102058) and SecurityFocus (BID 91459†). The entries VDB-3243, VDB-95524, VDB-96100 and VDB-96101 are related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / 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: 102058
Nessus Name: openSUSE Security Update : libical (openSUSE-2017-869)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

06/23/2016 🔍
06/25/2016 +2 days 🔍
06/27/2016 +2 days 🔍
01/27/2017 +214 days 🔍
01/27/2017 +0 days 🔍
01/28/2017 +1 days 🔍
01/28/2017 +0 days 🔍
07/29/2017 +181 days 🔍
07/31/2017 +2 days 🔍

Sourcesinfo

Advisory: openwall.com
Status: Not defined

CVE: CVE-2016-5827 (🔍)
GCVE (CVE): GCVE-0-2016-5827
GCVE (VulDB): GCVE-100-96104
SecurityFocus: 91459 - libical Multiple Heap Overflow Vulnerabilities
OSVDB: - CVE-2016-5827 - libical - Out-of-Bounds Read Issue

See also: 🔍

Entryinfo

Created: 01/28/2017 09:09
Changes: 01/28/2017 09:09 (75)
Complete: 🔍
Cache ID: 216:616:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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