CVE-2026-47336: CWE-457 Use of uninitialized variable in Canonical Ubuntu Linux
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.
AI Analysis
Technical Summary
This vulnerability arises from the use of an uninitialized variable in the AppArmor socket mediation code for AF_INET and AF_INET6 protocols in Ubuntu Linux version 6.8. An unprivileged local user can trigger this bug, potentially causing AppArmor to incorrectly mediate network socket operations. The issue is classified under CWE-457 (Use of Uninitialized Variable) and has a CVSS v3.1 base score of 3.3, indicating low severity. No known exploits are reported, and no official remediation or patch has been documented at this time.
Potential Impact
The impact is limited to incorrect enforcement of network socket mediation by AppArmor, which could allow an unprivileged local user to bypass intended fine-grained network access controls. There is no reported impact on confidentiality or availability. The vulnerability does not appear to enable privilege escalation or remote exploitation.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should monitor for updates from Canonical. No vendor-provided mitigation or workaround is currently documented.
CVE-2026-47336: CWE-457 Use of uninitialized variable in Canonical Ubuntu Linux
Description
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.
CVSS v3.1
Score 3.3low
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from the use of an uninitialized variable in the AppArmor socket mediation code for AF_INET and AF_INET6 protocols in Ubuntu Linux version 6.8. An unprivileged local user can trigger this bug, potentially causing AppArmor to incorrectly mediate network socket operations. The issue is classified under CWE-457 (Use of Uninitialized Variable) and has a CVSS v3.1 base score of 3.3, indicating low severity. No known exploits are reported, and no official remediation or patch has been documented at this time.
Potential Impact
The impact is limited to incorrect enforcement of network socket mediation by AppArmor, which could allow an unprivileged local user to bypass intended fine-grained network access controls. There is no reported impact on confidentiality or availability. The vulnerability does not appear to enable privilege escalation or remote exploitation.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should monitor for updates from Canonical. No vendor-provided mitigation or workaround is currently documented.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- canonical
- Date Reserved
- 2026-05-19T10:37:36.434Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a188e0de29bf47b501d6908
Added to database: 5/28/2026, 6:48:45 PM
Last enriched: 5/28/2026, 7:04:32 PM
Last updated: 5/29/2026, 12:25:24 PM
Views: 12
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