Medium severity · published Apr 16, 2023
CVE-2020-28163
libdwarf before 20201201 allows a dwarf_print_lines.c NULL pointer dereference and application crash via a DWARF5 line-table header that has an invalid FORM for a pathname
6.5
CVSS
0.8%
EPSS
No
On KEV
Description
libdwarf before 20201201 allows a dwarf_print_lines.c NULL pointer dereference and application crash via a DWARF5 line-table header that has an invalid FORM for a pathname.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 56% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Libdwarf · Libdwarf Project
before 2020-12-01 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-28163
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-28163
Product
http://web.archive.org/web/20190601140703/https://sourceforge.net/projects/libdwarf/
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2026000
Patch
https://github.com/davea42/libdwarf-code/commit/faf99408e3f9f706fc3809dd400e831f989778d3
Third Party Advisory
https://www.prevanders.net/dwarfbug.html#DW202010-003
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