CVE-2022-47695Public exploit

Objdump crash via uninitialized symbol owner

Published Aug 22, 2023 · Updated Oct 3, 2024

Uninitialized-symbol handling in GNU Binutils objdump before 2.39.3 allows local users to crash the utility with a crafted Mach-O file. bfd_mach_o_get_synthetic_symtab leaves the asymbol the_bfd owner field uninitialized, and compare_symbols later dereferences it while sorting synthetic symbols. The flaw requires objdump to inspect attacker-supplied input; upstream GNU Binutils and Red Hat dispute treating inspection-tool crashes as security vulnerabilities.

CVSS severity7.8
High
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uninitialized-symbol handling in GNU Binutils objdump before 2.39.3 allows local users to crash the utility with a crafted Mach-O file. bfd_mach_o_get_synthetic_symtab leaves the asymbol the_bfd owner field uninitialized, and compare_symbols later dereferences it while sorting synthetic symbols. The flaw requires objdump to inspect attacker-supplied input; upstream GNU Binutils and Red Hat dispute treating inspection-tool crashes as security vulnerabilities.

The record

CVE
CVE-2022-47695
Published
Aug 22, 2023
Updated
Oct 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-400, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 22, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8SUSECVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1204.002Malicious File

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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