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CVE-2018-1000877: libarchive version commit 416694915449219d505531b1096384f3237dd6cc onwards (release v3.1.0 onwards) contain...

libarchive version commit 416694915449219d505531b1096384f3237dd6cc onwards (release v3.1.0 onwards) contains a CWE-415: Double Free vulnerability in RAR decoder - libarchive/archive_read_support_format_rar.c, parse_codes(), realloc(rar->lzss.window, new_size) with new_size = 0 that can result in Crash/DoS. This attack appear to be exploitable via the victim must open a specially crafted RAR archive.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2018-1000877 is a libarchive flaw that can crash software when it opens a specially crafted RAR archive. The main business risk is service disruption where archive handling is automated, such as upload processing or mail/security scanning. The source bundle does not show confirmed active exploitation. Exposure is most likely where libarchive v3.1.0 or later processes untrusted RAR files. Desktop users, servers, upload pipelines, scanners, and package-processing workflows may be affected if they rely on vulnerable libarchive builds. Treat this as a targeted availability risk, not a confirmed breach indicator. Patch promptly where archive processing is automated or exposed to external files; routine patch cycles may be acceptable for low-exposure endpoints. Mitigation focus: Apply libarchive security updates from the relevant OS or distribution vendor.; For source builds, review the upstream libarchive PR and vendor guidance before patching.; Limit or disable untrusted RAR processing until affected systems are updated..

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Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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12Source links

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