Home/CVE/libdwarf before 20201017 has a one-byte out-of-bounds read because of an invalid pointer dereference via an invalid line
CVE

CVE-2020-27545

libdwarf before 20201017 has a one-byte out-of-bounds read because of an invalid pointer dereference via an invalid line

libdwarf before 20201017 has a one-byte out-of-bounds read because of an invalid pointer dereference via an invalid line table in a crafted object.

MEDIUM · CVSS 6.5 EPSS 0.00113
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-763Release of Invalid Pointer or Reference
CWE-763Release of Invalid Pointer or Reference
▤

Affected Products & Versions

1
libdwarf project libdwarf< 2020-10-17
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD16 Apr 2023 · 12:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

2
msrcCVE-2020-27545
suse-csafSUSE-SU-2023:2784-1
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://web.archive.org/web/20190601140703/https://sourceforge.net/projects/libdwarf/Product
https://bugzilla.redhat.com/show_bug.cgi?id=2025694Issue TrackingPermissions RequiredThird Party Advisory
https://github.com/davea42/libdwarf-code/commit/95f634808c01f1c61bbec56ed2395af997f397eaPatch
https://sourceforge.net/projects/libdwarf/Product
https://www.prevanders.net/dwarfbug.html#DW202010-001Third Party Advisory
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