libical 0.47/1.0 icalparser_parse_string out-of-bounds

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability was found in libical 0.47/1.0. It has been rated as problematic. The impacted element is the function icalparser_parse_string. This manipulation causes out-of-bounds. This vulnerability appears as CVE-2016-5826. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic was found in libical 0.47/1.0. Affected by this vulnerability is the function icalparser_parse_string. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect availability. The summary by CVE is:

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

The bug was discovered 06/25/2016. The weakness was presented 01/27/2017 (Website). It is possible to read the advisory at openwall.com. This vulnerability is known as CVE-2016-5826 since 06/23/2016. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

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 106130 (SUSE SLES11 Security Update : Recommended update for libical (SUSE-SU-2018:0119-1)), 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 170690 (SUSE Enterprise Linux Security Update for libical (SUSE-SU-2018:0119-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 years after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (106130) and SecurityFocus (BID 91459†). See VDB-96100, VDB-96101, VDB-96102 and VDB-96104 for similar entries. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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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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NVD Base Score: 🔍

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: 106130
Nessus Name: SUSE SLES11 Security Update : Recommended update for libical (SUSE-SU-2018:0119-1)
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 🔍
01/17/2018 +353 days 🔍
01/18/2018 +1 days 🔍

Sourcesinfo

Advisory: openwall.com
Status: Not defined

CVE: CVE-2016-5826 (🔍)
GCVE (CVE): GCVE-0-2016-5826
GCVE (VulDB): GCVE-100-96103
SecurityFocus: 91459 - libical Multiple Heap Overflow Vulnerabilities
OSVDB: - CVE-2016-5826 - 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:ECA:103

Be aware that VulDB is the high quality source for vulnerability data.

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