VDB-112732 · CVE-2018-6484 · Qualys 170782

ZZIPlib 0.13.67 ZIP File zzip/zip.c __zzip_fetch_disk_trailer resource management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.8$0-$5k0.00

A vulnerability was found in ZZIPlib 0.13.67. It has been declared as problematic. This vulnerability affects the function __zzip_fetch_disk_trailer of the file zzip/zip.c of the component ZIP File Handler. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. CVE summarizes:

In ZZIPlib 0.13.67, there is a memory alignment error and bus error in the __zzip_fetch_disk_trailer function of zzip/zip.c. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted zip file.

The bug was discovered 01/31/2018. The weakness was disclosed 02/01/2018 (Website). The advisory is shared for download at github.com. This vulnerability was named CVE-2018-6484 since 01/31/2018. 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 was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 106911 (Fedora 27 : zziplib (2018-8d544ee879)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 170782 (SUSE Enterprise Linux Security Update for zziplib (SUSE-SU-2018:0548-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (106911).

Productinfo

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Version

CPE 2.3info

CPE 2.2info

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CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

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

NVD Base Score: 6.5
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CVSSv2info

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Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
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ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Nessus ID: 106911
Nessus Name: Fedora 27 : zziplib (2018-8d544ee879)
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OpenVAS ID: 867267
OpenVAS Name: Fedora Update for zziplib FEDORA-2018-8d544ee879
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OpenVAS Family: 🔍

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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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Timelineinfo

01/31/2018 🔍
01/31/2018 +0 days 🔍
02/01/2018 +1 days 🔍
02/01/2018 +0 days 🔍
02/02/2018 +1 days 🔍
02/20/2018 +18 days 🔍
02/21/2018 +1 days 🔍
02/03/2023 +1808 days 🔍

Sourcesinfo

Advisory: FEDORA-2018-8d544ee879
Status: Not defined

CVE: CVE-2018-6484 (🔍)

Entryinfo

Created: 02/02/2018 08:01
Updated: 02/03/2023 12:34
Changes: 02/02/2018 08:01 (73), 01/01/2020 07:40 (3), 02/03/2023 12:20 (4), 02/03/2023 12:27 (1), 02/03/2023 12:34 (1)
Complete: 🔍
Cache ID: 18:4A2:103

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