Security readout for executives and security teams
This flaw affects Ubuntu's apt-add-repository when adding PPAs. A network attacker positioned between the system and keyserver could cause the tool to trust the wrong repository signing key. That can undermine package trust on affected legacy Ubuntu systems. Exposure is most likely on old Ubuntu systems using vulnerable software-properties packages and adding PPAs through apt-add-repository. Fully updated supported Ubuntu systems are less likely exposed. Prioritize remediation for legacy Ubuntu systems that add PPAs or manage third-party repositories. This is not KEV-listed, but package trust compromise can become serious in managed server or workstation fleets. Mitigation focus: Apply Ubuntu updates referenced by USN-1588-1.; Ensure software-properties is at or above the fixed version for the Ubuntu release.; Avoid adding PPAs from untrusted networks until patched..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2012-5356 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- ubuntu-gpg-sec-bypass(78990)CVE reference · vdb-entry, x_refsource_XF
- https://bugs.launchpad.net/ubuntu/+source/software-properties/+bug/1016643CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
