Local denial of service via unreleased type strings
Published Aug 22, 2023 · Updated Oct 3, 2024
Memory leak in GNU Binutils 2.34 through 2.38 allows local users to interrupt objdump processing through a crafted binary file. The pr_function_type function in prdbg.c pops heap-allocated argument-type strings and appends their contents to a formatted type, but releases only the pointer array and leaves each string allocated. Triggering the flaw requires a user to process attacker-controlled binary debug data; repeated leaked allocations exhaust process memory and stop the affected operation.
Summary
What happened
Memory leak in GNU Binutils 2.34 through 2.38 allows local users to interrupt objdump processing through a crafted binary file. The pr_function_type function in prdbg.c pops heap-allocated argument-type strings and appends their contents to a formatted type, but releases only the pointer array and leaves each string allocated. Triggering the flaw requires a user to process attacker-controlled binary debug data; repeated leaked allocations exhaust process memory and stop the affected operation.
The record
- CVE
- CVE-2022-47010
- Published
- Aug 22, 2023
- Updated
- Oct 3, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-401, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 22, 2023CVE publishedPublication date reported by the CVE source.
- Oct 3, 2024Record updatedLatest update available in the CVE record.
Exploitability
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What is affected?
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Published CVSS scores
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Attacks
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Technologies
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