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Vulnerability of libbfd: NULL pointer dereference via debug_get_real_type

Synthesis of the vulnerability 

An attacker can force a NULL pointer to be dereferenced via debug_get_real_type() of libbfd, in order to trigger a denial of service.
Impacted products: Fedora.
Severity of this bulletin: 1/4.
Creation date: 28/12/2020.
Références of this threat: CVE-2020-16598-REJECT, FEDORA-2020-18ec0bf4bb, FEDORA-2020-f903e139b1, VIGILANCE-VUL-34203.

Description of the vulnerability 

An attacker can force a NULL pointer to be dereferenced via debug_get_real_type() of libbfd, in order to trigger a denial of service.
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This computer weakness announce impacts software or systems such as Fedora.

Our Vigil@nce team determined that the severity of this security alert is low.

The trust level is of type confirmed by the editor, with an origin of document.

An attacker with a expert ability can exploit this vulnerability.

Solutions for this threat 

Fedora 32-33: new mingw-binutils packages.
New packages are available:
  Fedora 32: mingw-binutils 2.32-8.fc32
  Fedora 33: mingw-binutils 2.34-4.fc33
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