CVE-2021-32825

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Summary

CVECVE-2021-32825
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-08-16 19:15:00 UTC
Updated2022-07-02 18:22:00 UTC
Descriptionbblfshd is an open source self-hosted server for source code parsing. In bblfshd before commit 4265465b9b6fb5663c30ee43806126012066aad4 there is a "zipslip" vulnerability. The unsafe handling of symbolic links in an unpacking routine may enable attackers to read and/or write to arbitrary locations outside the designated target folder. This issue may lead to arbitrary file write (with same permissions as the program running the unpack operation) if the attacker can control the archive file. Additionally, if the attacker has read access to the unpacked files, he may be able to read arbitrary system files the parent process has permissions to read. For more details including a PoC see the referenced GHSL-2020-258.

Risk And Classification

Problem Types: CWE-59

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Bblfshd Project Bblfshd All All All All

References

ReferenceSourceLinkTags
untar: add check on link · bblfsh/bblfshd@4265465 · GitHub MISC github.com
Bugfix ghsl 2020 258 by david972 · Pull Request #341 · bblfsh/bblfshd · GitHub MISC github.com
GHSL-2020-258: ZipSlip vulnerability in bblfshd - CVE-2021-32825 | GitHub Security Lab CONFIRM securitylab.github.com
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