HAProxy up to 1.5.13 buffer_slow_realign memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in HAProxy up to 1.5.13. Impacted is the function buffer_slow_realign. Executing a manipulation can lead to memory corruption. This vulnerability is tracked as CVE-2015-3281. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic was found in HAProxy up to 1.5.13 (Firewall Software). This vulnerability affects the function buffer_slow_realign. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality. CVE summarizes:

The buffer_slow_realign function in HAProxy 1.5.x before 1.5.14 and 1.6-dev does not properly realign a buffer that is used for pending outgoing data, which allows remote attackers to obtain sensitive information (uninitialized memory contents of previous requests) via a crafted request.

The weakness was disclosed 07/06/2015 (Website). The advisory is shared for download at haproxy.org. This vulnerability was named CVE-2015-3281 since 04/10/2015. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 84511 (Debian DSA-3301-1 : haproxy - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196170 (Ubuntu Security Notification for Haproxy Vulnerability (USN-2668-1)).

Upgrading to version 1.5.14 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (84511), SecurityFocus (BID 75554†) and Vulnerability Center (SBV-51135†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

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

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: 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: 84511
Nessus Name: Debian DSA-3301-1 : haproxy - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 703301
OpenVAS Name: Debian Security Advisory DSA 3301-1 (haproxy - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: HAProxy 1.5.14
Patch: 7ec765568883b2d4e5a2796adbeb492a22ec9bd4

Timelineinfo

04/10/2015 🔍
07/06/2015 +87 days 🔍
07/06/2015 +0 days 🔍
07/06/2015 +0 days 🔍
07/06/2015 +0 days 🔍
07/07/2015 +1 days 🔍
07/14/2015 +7 days 🔍
11/25/2024 +3422 days 🔍

Sourcesinfo

Advisory: USN-2668-1
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-3281 (🔍)
GCVE (CVE): GCVE-0-2015-3281
GCVE (VulDB): GCVE-100-76312

OVAL: 🔍

SecurityFocus: 75554 - HAProxy CVE-2015-3281 Information Disclosure Vulnerability
Vulnerability Center: 51135 - HAProxy 1.5.x before 1.5.14 and 1.6-dev Remote Information Disclosure via a Crafted Request, Medium

Entryinfo

Created: 07/07/2015 10:13
Updated: 11/25/2024 19:44
Changes: 07/07/2015 10:13 (64), 07/12/2017 12:07 (5), 05/23/2022 14:38 (5), 05/23/2022 14:41 (1), 05/23/2022 14:43 (1), 11/25/2024 19:44 (18)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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