Wireshark up to 2.6.5 RTSE Dissector epan/charsets.c get_t61_string out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Wireshark. This impacts the function get_t61_string of the file epan/charsets.c of the component RTSE Dissector. Such manipulation leads to out-of-bounds. This vulnerability is documented as CVE-2019-5718. The attack needs to be performed locally. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Wireshark (Packet Analyzer Software) and classified as problematic. Affected by this issue is the function get_t61_string of the file epan/charsets.c of the component RTSE Dissector. 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:

In Wireshark 2.6.0 to 2.6.5 and 2.4.0 to 2.4.11, the RTSE dissector and other ASN.1 dissectors could crash. This was addressed in epan/charsets.c by adding a get_t61_string length check.

The bug was discovered 12/20/2018. The weakness was released 01/08/2019 (Website). The advisory is available at securityfocus.com. This vulnerability is handled as CVE-2019-5718 since 01/08/2019. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 19 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 121299 (SUSE SLED15 / SLES15 Security Update : wireshark (SUSE-SU-2019:0130-1)), 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 371403 (Wireshark Multiple Vulnerabilities (wnpa-sec-2019-01 to wnpa-sec-2019-05)).

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

The vulnerability is also documented in the databases at Tenable (121299) and SecurityFocus (BID 106482†). Entries connected to this vulnerability are available at VDB-128784, VDB-128785, VDB-128787 and VDB-128789. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 121299
Nessus Name: SUSE SLED15 / SLES15 Security Update : wireshark (SUSE-SU-2019:0130-1)
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: 🔍

Patch: cd09cb5cfb673beca3cce20b1d6a9bc67a134ae1

Timelineinfo

12/20/2018 🔍
01/08/2019 +19 days 🔍
01/08/2019 +0 days 🔍
01/08/2019 +0 days 🔍
01/08/2019 +0 days 🔍
01/09/2019 +1 days 🔍
01/18/2019 +9 days 🔍
01/22/2019 +4 days 🔍
06/23/2023 +1613 days 🔍

Sourcesinfo

Product: wireshark.org

Advisory: securityfocus.com⛔
Status: Confirmed

CVE: CVE-2019-5718 (🔍)
GCVE (CVE): GCVE-0-2019-5718
GCVE (VulDB): GCVE-100-128786
SecurityFocus: 106482 - Wireshark Multiple Denial of Service Vulnerabilities

See also: 🔍

Entryinfo

Created: 01/09/2019 17:48
Updated: 06/23/2023 12:28
Changes: 01/09/2019 17:48 (76), 04/26/2020 18:57 (4), 06/23/2023 12:28 (5)
Complete: 🔍
Cache ID: 216::103

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