Security readout for executives and security teams
This flaw affects libalpm in pacman 5.0.1. A maliciously crafted signature file can make the package manager hang or read outside expected memory. The main business risk is denial of service to package management workflows, not confirmed system compromise. Exposure is most likely on systems using pacman 5.0.1 or its libalpm library when processing signature files from untrusted or attacker-influenced sources. The source bundle does not prove broader product or version impact. Treat this as a targeted package-management availability risk. Prioritize systems where pacman updates are operationally critical or consume untrusted package metadata, but do not escalate as actively exploited based on current sources. Mitigation focus: Identify systems using pacman 5.0.1 or bundled libalpm.; Apply the vendor-supported pacman/libalpm update containing the signature parser fix.; Use only trusted package repositories, mirrors, and signature sources..
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-2016-5434 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
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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
- [pacman-dev] 20160606 [PATCH] Fix OOB read and endless loop in signature parser.CVE reference · mailing-list, x_refsource_MLIST
Products and packages named in the record
CWE details
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