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CVE-2018-7263: Underbit Libmad: Memory corruption
CVE-2018-7263 is rated critical with a CVSS v3.0 base score of 9.8 and affects Underbit Libmad. Per its scoring, it can be exploited over the network, without authentication, without any user interaction. The scored impact on confidentiality, integrity and availability is the highest available.
Vulnerability description
The mad_decoder_run() function in decoder.c in Underbit libmad through 0.15.1b allows remote attackers to cause a denial of service (SIGABRT because of double free or corruption) or possibly have unspecified other impact via a crafted file. NOTE: this may overlap CVE-2017-11552.
Severity breakdown
CVSS v3.0 9.8: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
- Attack complexity: Low. No special conditions; the attack can be repeated reliably.
- Privileges required: None. No account or prior access is needed.
- User interaction: None. No action from any user is needed.
- Scope: Unchanged. Impact stays within the vulnerable component.
- Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
- Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
- Availability impact: High. Total loss of availability; the component can be shut down.
Underlying weakness
CWE-415: Double Free
The product calls free() twice on the same memory address.
Affected products
- Underbit Libmad: up to and including 0.15.1b