CWE-457
Use of Uninitialized Variable
The code uses a variable that has not been initialized, leading to unpredictable or unintended results.
CVE-2026-47336 (GCVE-0-2026-47336)
Vulnerability from cvelistv5 – Published: 2026-05-28 18:29 – Updated: 2026-05-28 19:23
VLAI
Title
Use of uninitialized value in Ubuntu Linux AppArmor IPv4/IPv6 socket mediation rules
Summary
Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/AF_INET6 socket mediation code. The bug can be triggered by an unprivileged local user and could result in incorrect fine-grained mediation of network sockets.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-457 - Use of uninitialized variable
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://git.launchpad.net/~ubuntu-kernel/ubuntu/+… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Canonical | Ubuntu Linux |
Affected:
6.8.0 , < 6.8.0-124.124
(dpkg)
|
Credits
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CVE-2026-9754 (GCVE-0-2026-9754)
Vulnerability from cvelistv5 – Published: 2026-06-09 22:33 – Updated: 2026-06-10 18:29
VLAI
Title
Stack memory disclosure in filemd5 command
Summary
An authenticated user with the read role may read limited amounts of uninitialized stack memory via specially-crafted issuances of the filemd5 command
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-457 - Use of uninitialized variable
Assigner
References
1 reference
Impacted products
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Mitigation ID: MIT-57
Phase: Implementation
Strategy: Attack Surface Reduction
Description:
- Ensure that critical variables are initialized before first use [REF-1485].
Mitigation
Phase: Build and Compilation
Strategy: Compilation or Build Hardening
Description:
- Most compilers will complain about the use of uninitialized variables if warnings are turned on.
Mitigation
Phases: Implementation, Operation
Description:
- When using a language that does not require explicit declaration of variables, run or compile the software in a mode that reports undeclared or unknown variables. This may indicate the presence of a typographic error in the variable's name.
Mitigation
Phase: Requirements
Strategy: Language Selection
Description:
- Choose a language that is not susceptible to these issues.
Mitigation
Phase: Architecture and Design
Description:
- Mitigating technologies such as safe string libraries and container abstractions could be introduced.
No CAPEC attack patterns related to this CWE.