What is the CVSS score of CVE-2016-9558?

CVE-2016-9558 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 2.7%.

Is there a public PoC exploit available for CVE-2016-9558?

Yes, a public proof-of-concept exploit is available for CVE-2016-9558. Prioritise patching immediately. EPSS: 2.7%.

Is there a patch available for CVE-2016-9558?

Yes, a patch is available for CVE-2016-9558. Update the affected software to the latest version immediately.

Libdwarf CVE-2016-9558

CRITICAL

Integer Overflow or Wraparound (CWE-190)

2017-02-28 cve@mitre.org

Integer Overflow Buffer Overflow Libdwarf

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Feb 28, 2017 - 18:59 cve.org

CRITICAL 9.8

DescriptionCVE.org

AnalysisAI

(1) libdwarf/dwarf_leb.c and (2) dwarfdump/print_frames.c in libdwarf before 20161124 allow remote attackers to have unspecified impact via a crafted bit pattern in a signed leb number, aka a. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified as Integer Overflow (CWE-190), which allows attackers to cause unexpected behavior through arithmetic overflow. (1) libdwarf/dwarf_leb.c and (2) dwarfdump/print_frames.c in libdwarf before 20161124 allow remote attackers to have unspecified impact via a crafted bit pattern in a signed leb number, aka a "negation overflow." Affected products include: Libdwarf Project Libdwarf. Version information: before 20161124.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Validate arithmetic operations, use safe integer libraries, check bounds before allocation.