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CVE-2017-9053: Libdwarf Project: Buffer overflow
CVE-2017-9053 is rated critical with a CVSS v3.1 base score of 9.1 and affects Libdwarf Project. Per its scoring, it can be exploited over the network, without authentication, without any user interaction.
Vulnerability description
An issue, also known as DW201703-005, was discovered in libdwarf 2017-03-21. A heap-based buffer over-read in _dwarf_read_loc_expr_op() is due to a failure to check a pointer for being in bounds (in a few places in this function).
Severity breakdown
CVSS v3.1 9.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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: None. No loss of integrity.
- Availability impact: High. Total loss of availability; the component can be shut down.
Underlying weakness
CWE-125: Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.
Affected products
- Libdwarf Project: 2017-03-21