Apple tvOS up to 12.3 libxslt type confusion

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple tvOS up to 12.3 and classified as critical. Affected is an unknown function of the component libxslt. Such manipulation leads to input validation. This vulnerability is uniquely identified as CVE-2019-13118. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple tvOS up to 12.3 (Digital Media Player) and classified as critical. Affected by this issue is an unknown code of the component libxslt. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-843. The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In numbers.c in libxslt 1.1.33, a type holding grouping characters of an xsl:number instruction was too narrow and an invalid character/length combination could be passed to xsltNumberFormatDecimal, leading to a read of uninitialized stack data.

The weakness was disclosed 07/22/2019 as HT210351 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2019-13118 since 06/30/2019. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The advisory points out:

A stack overflow was addressed with improved input validation.

Upgrading to version 12.4 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The entries VDB-137112, VDB-137113, VDB-138544 and VDB-138575 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

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

NVD Base Score: 5.3
NVD Vector: 🔍

ADP CISA Base Score: 5.3
ADP CISA 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: Type confusion
CWE: CWE-843
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: tvOS 12.4
Patch: gitlab.gnome.org

Timelineinfo

06/30/2019 🔍
07/22/2019 +22 days 🔍
07/22/2019 +0 days 🔍
07/24/2019 +2 days 🔍
05/29/2026 +2501 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT210351
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2019-13118 (🔍)
GCVE (CVE): GCVE-0-2019-13118
GCVE (VulDB): GCVE-100-138632
See also: 🔍

Entryinfo

Created: 07/24/2019 15:54
Updated: 05/29/2026 06:53
Changes: 07/24/2019 15:54 (62), 07/11/2020 07:06 (3), 11/07/2023 08:09 (4), 05/29/2026 06:53 (30)
Complete: 🔍
Cache ID: 216::103

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