openEuler byacc next_inline infinite loop

CVSS Meta Temp Score
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability was found in openEuler byacc and classified as problematic. The affected element is the function next_inline. Such manipulation leads to infinite loop. This vulnerability is traded as CVE-2021-33642. There is no exploit available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in openEuler byacc (the affected version is unknown). It has been rated as problematic. Affected by this issue is the function next_inline. The manipulation with an unknown input leads to a infinite loop vulnerability. Using CWE to declare the problem leads to CWE-835. The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. Impacted is availability. CVE summarizes:

When a file is processed, an infinite loop occurs in next_inline() of the more_curly() function.

The weakness was shared 01/21/2023 as 50225f48c6b53e9d7c936681a06682404cb8ec4d. The advisory is shared for download at gitee.com. This vulnerability is handled as CVE-2021-33642 since 05/28/2021. There are known technical details, but no exploit is available.

Applying the patch 50225f48c6b53e9d7c936681a06682404cb8ec4d is able to eliminate this problem. The bugfix is ready for download at gitee.com.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Infinite loop
CWE: CWE-835 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 50225f48c6b53e9d7c936681a06682404cb8ec4d

Timelineinfo

05/28/2021 🔍
01/21/2023 +603 days 🔍
01/21/2023 +0 days 🔍
04/02/2025 +802 days 🔍

Sourcesinfo

Advisory: 50225f48c6b53e9d7c936681a06682404cb8ec4d
Status: Confirmed

CVE: CVE-2021-33642 (🔍)
GCVE (CVE): GCVE-0-2021-33642
GCVE (VulDB): GCVE-100-219104

Entryinfo

Created: 01/21/2023 09:39
Updated: 04/02/2025 23:16
Changes: 01/21/2023 09:39 (41), 02/18/2023 08:45 (11), 04/02/2025 23:16 (21)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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