IBM DB2 9.7/10.1/10.5/11.1 GSKit Environment Variable memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in IBM DB2 9.7/10.1/10.5/11.1. The impacted element is an unknown function of the component GSKit. This manipulation as part of Environment Variable causes memory corruption. This vulnerability appears as CVE-2018-1427. The attack requires local access. There is no available exploit.

Detailsinfo

A vulnerability classified as critical was found in IBM DB2 9.7/10.1/10.5/11.1 (Database Software). Affected by this vulnerability is an unknown functionality of the component GSKit. The manipulation as part of a Environment Variable 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, integrity, and availability. The summary by CVE is:

IBM GSKit (IBM DB2 for Linux, UNIX and Windows 9.7, 10.1, 10.5, and 11.1) contains several environment variables that a local attacker could overflow and cause a denial of service. IBM X-Force ID: 139072.

The bug was discovered 03/15/2018. The weakness was presented 03/22/2018 (Website). The advisory is shared at ibm.com. This vulnerability is known as CVE-2018-1427 since 12/13/2017. An attack has to be approached locally. The successful exploitation needs a single authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 02/22/2023).

The vulnerability was handled as a non-public zero-day exploit for at least 7 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 87335 (IBM HTTP Server Multiple Vulnerabilities(swg22015347)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 103536†). See VDB-81145, VDB-90006, VDB-93151 and VDB-114912 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.4

VulDB Base Score: 4.4
VulDB Temp Score: 4.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CNA Base Score: 6.2
CNA Vector (IBM Corporation): 🔍

CVSSv2info

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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: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/13/2017 🔍
03/14/2018 +91 days 🔍
03/15/2018 +1 days 🔍
03/22/2018 +7 days 🔍
03/22/2018 +0 days 🔍
03/23/2018 +1 days 🔍
02/22/2023 +1797 days 🔍

Sourcesinfo

Vendor: ibm.com

Advisory: ibm.com
Researcher: IBM
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-1427 (🔍)
GCVE (CVE): GCVE-0-2018-1427
GCVE (VulDB): GCVE-100-114913
X-Force: 139072
SecurityFocus: 103536 - IBM DB2 CVE-2018-1427 Multiple Local Buffer Overflow Vulnerabilities
SecurityTracker: 1041012

See also: 🔍

Entryinfo

Created: 03/23/2018 09:55
Updated: 02/22/2023 15:41
Changes: 03/23/2018 09:55 (64), 01/15/2020 20:56 (4), 02/05/2021 17:50 (3), 02/05/2021 17:55 (1), 02/05/2021 17:57 (1), 02/22/2023 15:41 (12)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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