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CVE-2020-6615

GNU LibreDWG 0.9.3.2564 has an invalid pointer dereference in dwg_dynapi_entity_value in dynapi.c...

6.5 Medium

GNU LibreDWG 0.9.3.2564 has an invalid pointer dereference in dwg_dynapi_entity_value in dynapi.c (dynapi.c is generated by gen-dynapi.pl).

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

1.51%Up 0.7 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 6.5

GNU LibreDWG 0.9.3.2564 has an invalid pointer dereference in dwg_dynapi_entity_value in dynapi.c (dynapi.c is generated by gen-dynapi.pl).

Record
CVE-2020-6615
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness
CWE-476
Updated
2026-11-02
CVE List No score

GNU LibreDWG 0.9.3.2564 has an invalid pointer dereference in dwg_dynapi_entity_value in dynapi.c (dynapi.c is generated by gen-dynapi.pl).

Record
CVE-2020-6615
Updated
2026-11-02
EUVDEUVD-2020-27763 No score

GNU LibreDWG 0.9.3.2564 has an invalid pointer dereference in dwg_dynapi_entity_value in dynapi.c (dynapi.c is generated by gen-dynapi.pl).

Record
EUVD-2020-27763
Updated
2026-11-03
GitHub AdvisoriesGHSA-p956-w6xf-6v9r 6.5

GNU LibreDWG 0.9.3.2564 has an invalid pointer dereference in dwg_dynapi_entity_value in dynapi.c...

GNU LibreDWG 0.9.3.2564 has an invalid pointer dereference in dwg_dynapi_entity_value in dynapi.c (dynapi.c is generated by gen-dynapi.pl).

Record
GHSA-p956-w6xf-6v9r
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-476
Updated
2026-11-02
OSVopenSUSE-SU-2020:0096-1 No score

Security update for libredwg

This update for libredwg fixes the following issues:

libredwg was updated to release 0.10:

API breaking changes:

  • Added a new int *isnewp argument to all dynapi utf8text getters, if the returned string is freshly malloced or not.
  • removed the UNKNOWN supertype, there are only UNKNOWN_OBJ and UNKNOWN_ENT left, with common_entity_data.
  • renamed BLOCK_HEADER.preview_data to preview, preview_data_size to preview_size.
  • renamed SHAPE.shape_no to style_id.
  • renamed CLASS.wasazombie to is_zombie.

Bugfixes:

  • Harmonized INDXFB with INDXF, removed extra src/in_dxfb.c.
  • Fixed encoding of added r2000 AUXHEADER address.
  • Fixed EED encoding from dwgrewrite.
  • Add several checks against [CVE-2020-6609, boo#1160520], [CVE-2020-6610, boo#1160522], [CVE-2020-6611, boo#1160523], [CVE-2020-6612, boo#1160524], [CVE-2020-6613, boo#1160525], [CVE-2020-6614, boo#1160526], [CVE-2020-6615, boo#1160527]
Record
openSUSE-SU-2020:0096-1
Updated
2026-11-02
OSVopenSUSE-SU-2020:0115-1 No score

Security update for libredwg

This update for libredwg fixes the following issues:

libredwg was updated to release 0.10:

API breaking changes:

  • Added a new int *isnewp argument to all dynapi utf8text getters, if the returned string is freshly malloced or not.
  • removed the UNKNOWN supertype, there are only UNKNOWN_OBJ and UNKNOWN_ENT left, with common_entity_data.
  • renamed BLOCK_HEADER.preview_data to preview, preview_data_size to preview_size.
  • renamed SHAPE.shape_no to style_id.
  • renamed CLASS.wasazombie to is_zombie.

Bugfixes:

  • Harmonized INDXFB with INDXF, removed extra src/in_dxfb.c.
  • Fixed encoding of added r2000 AUXHEADER address.
  • Fixed EED encoding from dwgrewrite.
  • Add several checks against [CVE-2020-6609, boo#1160520], [CVE-2020-6610, boo#1160522], [CVE-2020-6611, boo#1160523], [CVE-2020-6612, boo#1160524], [CVE-2020-6613, boo#1160525], [CVE-2020-6614, boo#1160526], [CVE-2020-6615, boo#1160527] This update was imported from the openSUSE:Leap:15.1:Update update project.
Record
openSUSE-SU-2020:0115-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:10981-1 No score

libredwg-devel-0.11.1-1.6 on GA media

These are all security issues fixed in the libredwg-devel-0.11.1-1.6 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10981-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
libredwg
openSUSE:Leap 15.1
From an advisory covering 7 CVEs
 before 0.10-lp151.2.6.1
0.10-lp151.2.6.1
libredwg
SUSE:Package Hub 15 SP1
From an advisory covering 7 CVEs
 before 0.10-bp151.2.6.1
0.10-bp151.2.6.1
libredwg
openSUSE:Tumbleweed
From an advisory covering 20 CVEs
 before 0.11.1-1.6
0.11.1-1.6

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-6615 is a medium vulnerability (CVSS 6.5) in Gnu Libredwg, published January 8, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.51%, the 74th percentile. No source names a fixed version.

References

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