HAProxy up to 1.8.13 HPACK Decoder hpack_valid_idx out-of-bounds
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.7 | $0-$5k | 0.00 |
A vulnerability was found in HAProxy up to 1.8.13 (Firewall Software). It has been declared as problematic. Affected by this vulnerability is the function hpack_valid_idx
of the component HPACK Decoder. 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:
A flaw was discovered in the HPACK decoder of HAProxy, before 1.8.14, that is used for HTTP/2. An out-of-bounds read access in hpack_valid_idx() resulted in a remote crash and denial of service.
The bug was discovered 09/25/2018. The weakness was presented 09/21/2018 (Website). The advisory is shared at mail-archive.com. This vulnerability is known as CVE-2018-14645 since 07/27/2018. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.
The vulnerability scanner Nessus provides a plugin with the ID 118344 (openSUSE Security Update : haproxy (openSUSE-2018-1229)), 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 171847 (OpenSUSE Security Update for haproxy (openSUSE-SU-2018:3324-1)).
Upgrading to version 1.8.14 eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (118344). See 118220 for similar entry.
Product
Type
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.8VulDB Meta Temp Score: 6.7
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔍
CNA Base Score: 7.5
CNA Vector (Red Hat, Inc.): 🔍
CVSSv2
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VulDB Base Score: 🔍
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NVD Base Score: 🔍
Exploiting
Class: Out-of-boundsCWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Nessus ID: 118344
Nessus Name: openSUSE Security Update : haproxy (openSUSE-2018-1229)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: HAProxy 1.8.14
Timeline
05/25/2018 🔍07/27/2018 🔍
09/21/2018 🔍
09/21/2018 🔍
09/21/2018 🔍
09/25/2018 🔍
10/23/2018 🔍
10/24/2018 🔍
05/17/2023 🔍
Sources
Advisory: RHSA-2018:2882Status: Confirmed
Confirmation: 🔍
CVE: CVE-2018-14645 (🔍)
SecurityFocus: 104347 - HAProxy CVE-2018-11469 Information Disclosure Vulnerability
See also: 🔍
Entry
Created: 09/21/2018 17:12Updated: 05/17/2023 13:26
Changes: 09/21/2018 17:12 (76), 03/26/2020 09:27 (4), 05/17/2023 13:21 (4), 05/17/2023 13:26 (12)
Complete: 🔍
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