Application crash via hash_destroy use-after-free
Published Nov 17, 2023 · Updated Aug 29, 2024
Use-after-free in Liblisp through commit 4c65969 allows attackers to crash processes via crafted Lisp input over a network-delivered payload. The hash_destroy function frees hash entries and then dereferences freed memory while traversing the table during garbage-collection teardown, producing a heap-use-after-free. Remote attackers still require user interaction to make a victim process the malicious input; the demonstrated consequence is process termination and service interruption, with no supported confidentiality or integrity impact.
Summary
What happened
Use-after-free in Liblisp through commit 4c65969 allows attackers to crash processes via crafted Lisp input over a network-delivered payload. The hash_destroy function frees hash entries and then dereferences freed memory while traversing the table during garbage-collection teardown, producing a heap-use-after-free. Remote attackers still require user interaction to make a victim process the malicious input; the demonstrated consequence is process termination and service interruption, with no supported confidentiality or integrity impact.
The record
- CVE
- CVE-2023-48024
- Published
- Nov 17, 2023
- Updated
- Aug 29, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-416, T1203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 17, 2023CVE publishedPublication date reported by the CVE source.
- Aug 29, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
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Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
- uaf-liblisp.zip reproductionproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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