peg-markdown 0.4.14 markdown_lib.c process_raw_blocks null pointer dereference
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.4 | $0-$5k | 0.00 |
A vulnerability classified as problematic was found in peg-markdown 0.4.14. Affected by this vulnerability is the function process_raw_blocks
in the library markdown_lib.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:
** UNSUPPORTED WHEN ASSIGNED ** peg-markdown 0.4.14 has a NULL pointer dereference in process_raw_blocks in markdown_lib.c. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.
The weakness was disclosed 09/23/2020. This vulnerability is known as CVE-2020-25821 since 09/23/2020. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.
The problem might be mitigated by replacing the product with as an alternative.
Product
Name
Version
Support
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
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CVSSv3
VulDB Meta Base Score: 6.4VulDB Meta Temp Score: 6.4
VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔍
CVSSv2
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Exploiting
Class: Null pointer dereferenceCWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
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Current Price Estimation: 🔍
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: AlternativeStatus: 🔍
0-Day Time: 🔍
Timeline
09/23/2020 🔍09/23/2020 🔍
09/23/2020 🔍
08/04/2024 🔍
Sources
Status: Not definedCVE: CVE-2020-25821 (🔍)
Entry
Created: 09/23/2020 12:34 PMUpdated: 08/04/2024 07:11 PM
Changes: 09/23/2020 12:34 PM (36), 09/23/2020 12:39 PM (17), 08/04/2024 07:11 PM (17)
Complete: 🔍
Cache ID: 44:D19:40
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