Security readout for executives and security teams
This vulnerability affects libarchive's RAR handling. A crafted RAR archive can trigger a use-after-free bug when a vulnerable system opens or processes it, causing a crash or denial of service. Public sources say remote code execution is unknown, not confirmed. Exposure is most likely where servers, desktops, scanning tools, backup systems, or applications use vulnerable libarchive versions to process user-supplied or untrusted RAR archives. Treat this as a practical availability risk for archive-processing workflows, especially internet-facing upload or scanning paths. Prioritize patching over emergency response unless local evidence shows exploitation or crashes. Mitigation focus: Apply vendor libarchive security updates for affected Linux distributions.; Check upstream libarchive guidance and PR 1105 for fixed code context.; Restrict processing of untrusted RAR archives 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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Execution behavior lookup
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Open ATT&CK lookupCVE-2018-1000878 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
- USN-3859-1CVE reference · vendor-advisory, x_refsource_UBUNTU
- [debian-lts-announce] 20181221 [SECURITY] [DLA 1612-1] libarchive security updateCVE reference · mailing-list, x_refsource_MLIST
- https://bugs.launchpad.net/ubuntu/+source/libarchive/+bug/1794909CVE reference · x_refsource_MISC
- DSA-4360CVE reference · vendor-advisory, x_refsource_DEBIAN
- https://github.com/libarchive/libarchive/pull/1105CVE reference · x_refsource_MISC
- https://github.com/libarchive/libarchive/pull/1105/commits/bfcfe6f04ed20db2504db8a254d1f40a1d84eb28CVE reference · x_refsource_MISC
- FEDORA-2019-0233ec0ff3CVE reference · vendor-advisory, x_refsource_FEDORA
- FEDORA-2019-fbe83d0e32CVE reference · vendor-advisory, x_refsource_FEDORA
- FEDORA-2019-c595a93536CVE reference · vendor-advisory, x_refsource_FEDORA
- RHSA-2019:2298CVE reference · vendor-advisory, x_refsource_REDHAT
- RHSA-2019:3698CVE reference · vendor-advisory, x_refsource_REDHAT
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.