Apple macOS up to 10.13.2 apache use after free

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability has been found in Apple macOS up to 10.13.2 and classified as problematic. This affects an unknown function of the component apache. The manipulation leads to use after free. This vulnerability is listed as CVE-2017-9798. The attack may be initiated remotely. In addition, an exploit is available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in Apple macOS up to 10.13.2 (Operating System). It has been rated as problematic. This issue affects an unknown part of the component apache. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality.

The bug was discovered 09/18/2017. The weakness was presented 12/06/2017 as HT208331 as confirmed advisory (Website). The advisory is shared at support.apple.com. The identification of this vulnerability is CVE-2017-9798 since 06/21/2017. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available. The advisory points out:

Multiple issues were addressed by updating to version 2.4.28.

The exploit is available at exploit-db.com. It is declared as highly functional. We expect the 0-day to have been worth approximately $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 109294 (openSUSE Security Update : virtualbox (openSUSE-2018-389) (Optionsbleed)), 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 370677 (Apple macOS High Sierra 10.13.2, Security Update 2017-002 Sierra, and Security Update 2017-005 El Capitan Not Installed).

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (42745), Tenable (109294) and SecurityFocus (BID 105414†). See VDB-92314, VDB-92773, VDB-92782 and VDB-92786 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Version

License

Website

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 109294
Nessus Name: openSUSE Security Update : virtualbox (openSUSE-2018-389) (Optionsbleed)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53754
OpenVAS Name: Debian Security Advisory DSA 3980-1 (apache2 - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: apache_optionsbleed.rb
MetaSploit Name: Jenkins-CI Login Utility
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: github.com
Suricata ID: 2024759
Suricata Class: 🔍
Suricata Message: 🔍

Timelineinfo

06/21/2017 🔍
09/18/2017 +89 days 🔍
09/18/2017 +0 days 🔍
12/06/2017 +79 days 🔍
12/06/2017 +0 days 🔍
12/10/2017 +4 days 🔍
04/24/2018 +135 days 🔍
09/25/2018 +154 days 🔍
11/04/2025 +2597 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT208331
Researcher: Gal Goldshtein
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-9798 (🔍)
GCVE (CVE): GCVE-0-2017-9798
GCVE (VulDB): GCVE-100-110393

OVAL: 🔍

SecurityFocus: 105414 - Apache HTTP Server CVE-2018-11763 Denial of Service Vulnerability
SecurityTracker: 1039387

scip Labs: https://www.scip.ch/en/?labs.20180712
See also: 🔍

Entryinfo

Created: 12/10/2017 09:12
Updated: 11/04/2025 17:38
Changes: 12/10/2017 09:12 (69), 12/13/2019 09:06 (25), 01/26/2021 10:59 (4), 01/26/2021 11:03 (1), 01/17/2023 10:33 (3), 01/02/2025 21:43 (14), 11/04/2025 17:38 (1)
Complete: 🔍
Cache ID: 216::103

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

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