PicoC 3.2.2 expression.c ExpressionCoerceUnsignedInteger heap-based overflow
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
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5.9 | $0-$5k | 0.00 |
A vulnerability, which was classified as critical, was found in PicoC 3.2.2. This affects the function ExpressionCoerceUnsignedInteger
of the file expression.c. The manipulation with an unknown input leads to a heap-based overflow vulnerability. CWE is classifying the issue as CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:
PicoC Version 3.2.2 was discovered to contain a heap buffer overflow in the ExpressionCoerceUnsignedInteger function in expression.c when called from ExpressionParseFunctionCall.
The weakness was published 11/08/2022 as 37. The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2022-44313 since 10/30/2022. Technical details are known, but no exploit is available.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Product
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.9VulDB Meta Temp Score: 5.9
VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.5
NVD Vector: 🔍
CVSSv2
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Heap-based overflowCWE: CWE-122 / CWE-119
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
10/30/2022 🔍11/08/2022 🔍
11/08/2022 🔍
12/05/2022 🔍
Sources
Advisory: 37Status: Confirmed
CVE: CVE-2022-44313 (🔍)
Entry
Created: 11/08/2022 18:34Updated: 12/05/2022 14:37
Changes: 11/08/2022 18:34 (39), 12/05/2022 14:37 (12)
Complete: 🔍
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