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Unrated severityNVD Advisory· Published Feb 2, 2018· Updated Aug 5, 2024

CVE-2018-6543

CVE-2018-6543

Description

Integer overflow in GNU Binutils 2.30's objdump.c allows remote attackers to cause denial of service via crafted ELF file.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Integer overflow in GNU Binutils 2.30's objdump.c allows remote attackers to cause denial of service via crafted ELF file.

Vulnerability

In GNU Binutils 2.30, the function load_specific_debug_section() in objdump.c contains an integer overflow vulnerability. When processing a crafted ELF file, the overflow causes malloc() to be called with a size of 0, leading to undefined behavior. The vulnerability is triggered when objdump is used to analyze a malicious ELF file.

Exploitation

An attacker can exploit this vulnerability by providing a specially crafted ELF file to a user and convincing them to process it with objdump. No authentication or special privileges are required. The user interaction is limited to opening the file with the vulnerable tool [1].

Impact

Successful exploitation results in a denial of service due to application crash. The description also mentions the possibility of other unspecified impacts, though the primary outcome is a crash.

Mitigation

The vulnerability is fixed in GNU Binutils version 2.30-r2 and later. Users should upgrade to the latest version. There is no known workaround at this time, as stated in the Gentoo advisory [1].

References
  1. Multiple vulnerabilities (GLSA 201811-17) — Gentoo security

AI Insight generated on May 26, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.

Affected products

44

Patches

0

No patches discovered yet.

Vulnerability mechanics

No source-code context for this CVE — mechanics is only generated when we can read the actual fix diff. Without that, the four sections (root cause, attack vector, affected code, fix) would be speculation rather than analysis.

References

5

News mentions

0

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