GNU Libextractor 1.4 plugins/nsfe_extractor.c EXTRACTOR_nsfe_extract_method Infinite Loop memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability was found in GNU Libextractor 1.4. It has been rated as problematic. Impacted is the function EXTRACTOR_nsfe_extract_method of the file plugins/nsfe_extractor.c. Performing a manipulation as part of Infinite Loop results in memory corruption. This vulnerability was named CVE-2017-15602. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, was found in GNU Libextractor 1.4. This affects the function EXTRACTOR_nsfe_extract_method of the file plugins/nsfe_extractor.c. The manipulation as part of a Infinite Loop leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. The summary by CVE is:

In GNU Libextractor 1.4, there is an integer signedness error for the chunk size in the EXTRACTOR_nsfe_extract_method function in plugins/nsfe_extractor.c, leading to an infinite loop for a crafted size.

The bug was discovered 10/13/2017. The weakness was presented 10/18/2017 (Website). It is possible to read the advisory at lists.gnu.org. This vulnerability is uniquely identified as CVE-2017-15602 since 10/18/2017. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. 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 5 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 105009 (Debian DLA-1198-1 : libextractor 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 and running in the context l.

Upgrading 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 (105009). See VDB-107800, VDB-107801, VDB-108001 and VDB-108002 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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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: 🔍
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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: 105009
Nessus Name: Debian DLA-1198-1 : libextractor security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

10/13/2017 🔍
10/18/2017 +5 days 🔍
10/18/2017 +0 days 🔍
10/18/2017 +0 days 🔍
10/19/2017 +1 days 🔍
12/04/2017 +46 days 🔍
12/05/2017 +1 days 🔍
01/04/2023 +1856 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: DLA 1198-1
Status: Not defined

CVE: CVE-2017-15602 (🔍)
GCVE (CVE): GCVE-0-2017-15602
GCVE (VulDB): GCVE-100-108003
See also: 🔍

Entryinfo

Created: 10/19/2017 09:22
Updated: 01/04/2023 08:18
Changes: 10/19/2017 09:22 (68), 11/26/2019 08:34 (3), 01/04/2023 08:18 (4)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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