HAProxy up to 1.8.x/1.9.0 Protocol Decoder out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in HAProxy up to 1.8.x/1.9.0. The affected element is an unknown function of the component Protocol Decoder. The manipulation leads to out-of-bounds. This vulnerability is documented as CVE-2018-20615. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in HAProxy up to 1.8.x/1.9.0 (Firewall Software). This issue affects an unknown functionality of the component Protocol Decoder. 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. The summary by CVE is:

An out-of-bounds read issue was discovered in the HTTP/2 protocol decoder in HAProxy 1.8.x and 1.9.x through 1.9.0 which can result in a crash. The processing of the PRIORITY flag in a HEADERS frame requires 5 extra bytes, and while these bytes are skipped, the total frame length was not re-checked to make sure they were present in the frame.

The weakness was released 03/21/2019 (Website). It is possible to read the advisory at securityfocus.com. The identification of this vulnerability is CVE-2018-20615 since 12/31/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 121210 (Ubuntu 16.04 LTS / 18.04 LTS / 18.10 : haproxy vulnerabilities (USN-3858-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 197342 (Ubuntu Security Notification for Haproxy Vulnerabilities (USN-3858-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (121210) and SecurityFocus (BID 106223†). Entries connected to this vulnerability are available at VDB-127920 and VDB-127921. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

License

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: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

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: 121210
Nessus Name: Ubuntu 16.04 LTS / 18.04 LTS / 18.10 : haproxy vulnerabilities (USN-3858-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/12/2018 🔍
12/31/2018 +19 days 🔍
01/15/2019 +15 days 🔍
01/16/2019 +1 days 🔍
03/21/2019 +64 days 🔍
03/21/2019 +0 days 🔍
08/03/2023 +1596 days 🔍

Sourcesinfo

Advisory: USN-3858-1⛔
Status: Confirmed

CVE: CVE-2018-20615 (🔍)
GCVE (CVE): GCVE-0-2018-20615
GCVE (VulDB): GCVE-100-131951
SecurityFocus: 106223 - HAProxy CVE-2018-20102 Out-of-Bounds Read Memory Corruption Vulnerability

See also: 🔍

Entryinfo

Created: 03/21/2019 23:18
Updated: 08/03/2023 15:56
Changes: 03/21/2019 23:18 (70), 05/18/2020 09:25 (3), 08/03/2023 15:49 (4), 08/03/2023 15:56 (1)
Complete: 🔍
Cache ID: 216::103

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

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