tcpreplay up to 4.3.0 common/get.c get_l2len out-of-bounds

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in tcpreplay up to 4.3.0. The affected element is the function get_l2len of the file common/get.c. The manipulation leads to out-of-bounds. This vulnerability is traded as CVE-2018-20553. An attack has to be approached locally. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in tcpreplay up to 4.3.0. It has been rated as critical. This issue affects the function get_l2len of the file common/get.c. 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 confidentiality, integrity, and availability. The summary by CVE is:

Tcpreplay before 4.3.1 has a heap-based buffer over-read in get_l2len in common/get.c.

The bug was discovered 12/18/2018. The weakness was shared 12/28/2018 (Website). It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2018-20553 since 12/28/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. 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 10 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 4.3.1 eliminates this vulnerability.

The entry VDB-128518 is related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

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

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: tcpreplay 4.3.1
Patch: github.com

Timelineinfo

12/18/2018 🔍
12/28/2018 +10 days 🔍
12/28/2018 +0 days 🔍
12/28/2018 +0 days 🔍
12/29/2018 +1 days 🔍
06/22/2023 +1636 days 🔍

Sourcesinfo

Advisory: 530
Status: Not defined

CVE: CVE-2018-20553 (🔍)
GCVE (CVE): GCVE-0-2018-20553
GCVE (VulDB): GCVE-100-128519
See also: 🔍

Entryinfo

Created: 12/29/2018 18:42
Updated: 06/22/2023 13:21
Changes: 12/29/2018 18:42 (59), 04/25/2020 07:56 (1), 06/22/2023 13:21 (5)
Complete: 🔍
Cache ID: 216::103

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

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