FreeXL up to 1.0.4 parse_unicode_string Unicode memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability has been found in FreeXL up to 1.0.4 and classified as critical. This affects the function parse_unicode_string. Performing a manipulation as part of Unicode results in memory corruption. This vulnerability is identified as CVE-2018-7438. The attack is only possible with local access. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in FreeXL up to 1.0.4. This affects the function parse_unicode_string. The manipulation as part of a Unicode 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 confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in FreeXL before 1.0.5. There is a heap-based buffer over-read in the parse_unicode_string function.

The bug was discovered 02/22/2018. The weakness was released 02/23/2018 (Website). The advisory is shared at bugzilla.redhat.com. This vulnerability is uniquely identified as CVE-2018-7438 since 02/23/2018. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, 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 107113 (openSUSE Security Update : freexl (openSUSE-2018-217)), 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 176311 (Debian Security Update for freexl (DSA 4129-1)).

Upgrading to version 1.0.5 eliminates this vulnerability. A possible mitigation has been published 6 days after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (107113). Entries connected to this vulnerability are available at VDB-113778, VDB-113779, VDB-113780 and VDB-113782. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 6.9

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

NVD Base Score: 8.8
NVD Vector: 🔍

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: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 107113
Nessus Name: openSUSE Security Update : freexl (openSUSE-2018-217)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 866348
OpenVAS Name: SuSE Update for freexl openSUSE-SU-2018:0570-1 (freexl)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: FreeXL 1.0.5

Timelineinfo

02/22/2018 🔍
02/23/2018 +1 days 🔍
02/23/2018 +0 days 🔍
02/23/2018 +0 days 🔍
02/24/2018 +1 days 🔍
03/01/2018 +5 days 🔍
03/02/2018 +1 days 🔍
02/10/2023 +1806 days 🔍

Sourcesinfo

Advisory: DLA 1297-1
Status: Not defined

CVE: CVE-2018-7438 (🔍)
GCVE (CVE): GCVE-0-2018-7438
GCVE (VulDB): GCVE-100-113781

OVAL: 🔍
See also: 🔍

Entryinfo

Created: 02/24/2018 12:31
Updated: 02/10/2023 08:24
Changes: 02/24/2018 12:31 (75), 01/08/2020 13:13 (2), 02/10/2023 08:24 (4)
Complete: 🔍
Cache ID: 216::103

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