Oniguruma up to 6.9.3 regexec.c str_lower_case_match out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Oniguruma up to 6.9.3. Affected by this issue is the function str_lower_case_match of the file regexec.c. The manipulation results in out-of-bounds. This vulnerability was named CVE-2019-19246. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability classified as critical has been found in Oniguruma up to 6.9.3. Affected is the function str_lower_case_match of the file regexec.c. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Oniguruma through 6.9.3, as used in PHP 7.3.x and other products, has a heap-based buffer over-read in str_lower_case_match in regexec.c.

The weakness was presented 11/25/2019. This vulnerability is traded as CVE-2019-19246 since 11/25/2019. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 222851 (Linux Distros Unpatched Vulnerability : CVE-2019-19246), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (222851). Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
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: Out-of-bounds
CWE: CWE-125 / 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: 222851
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2019-19246

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

11/25/2019 🔍
11/25/2019 +0 days 🔍
11/26/2019 +1 days 🔍
03/05/2025 +1926 days 🔍

Sourcesinfo

Advisory: 78559
Status: Confirmed

CVE: CVE-2019-19246 (🔍)
GCVE (CVE): GCVE-0-2019-19246
GCVE (VulDB): GCVE-100-146268

Entryinfo

Created: 11/26/2019 08:35
Updated: 03/05/2025 08:23
Changes: 11/26/2019 08:35 (35), 11/26/2019 08:40 (17), 02/27/2024 13:59 (5), 02/27/2024 14:05 (1), 03/05/2025 08:23 (23)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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