CVE-2022-48065

Service interruption via leaked DWARF name buffers

Published Aug 22, 2023 · Updated Oct 3, 2024

Memory leak in GNU Binutils before 2.40 allows context-dependent attackers to interrupt a local inspection tool via a crafted DWARF file. In dwarf2.c, find_abstract_instance double-allocates the name variable and replaces it without freeing the prior buffer while parsing DW_AT_decl_file data. Processing a crafted binary is required; repeated leakage can exhaust memory and interrupt the tool, although GNU disputes treating inspection-tool bugs as security issues.

CVSS severity5.5
Medium
EPSS probability0.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory leak in GNU Binutils before 2.40 allows context-dependent attackers to interrupt a local inspection tool via a crafted DWARF file. In dwarf2.c, find_abstract_instance double-allocates the name variable and replaces it without freeing the prior buffer while parsing DW_AT_decl_file data. Processing a crafted binary is required; repeated leakage can exhaust memory and interrupt the tool, although GNU disputes treating inspection-tool bugs as security issues.

The record

CVE
CVE-2022-48065
Published
Aug 22, 2023
Updated
Oct 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-401, T1499.004
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

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-401Missing Release of Memory after Effective Lifetime
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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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