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CVE-2020-17487

radare2 4.5.0 misparses signature information in PE files, causing a segmentation fault in...

7.5 HighFix available

radare2 4.5.0 misparses signature information in PE files, causing a segmentation fault in r_x509_parse_algorithmidentifier in libr/util/x509.c. This is due to a malformed object identifier in IMAGE_DIRECTORY_ENTRY_SECURITY.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

1.89%Up 1.1 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 7.5

radare2 4.5.0 misparses signature information in PE files, causing a segmentation fault in r_x509_parse_algorithmidentifier in libr/util/x509.c. This is due to a malformed object identifier in IMAGE_DIRECTORY_ENTRY_SECURITY.

Record
CVE-2020-17487
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Updated
2026-11-02
CVE List No score

radare2 4.5.0 misparses signature information in PE files, causing a segmentation fault in r_x509_parse_algorithmidentifier in libr/util/x509.c. This is due to a malformed object identifier in IMAGE_DIRECTORY_ENTRY_SECURITY.

Record
CVE-2020-17487
Updated
2026-11-02
EUVDEUVD-2020-9437 No score

radare2 4.5.0 misparses signature information in PE files, causing a segmentation fault in r_x509_parse_algorithmidentifier in libr/util/x509.c. This is due to a malformed object identifier in IMAGE_DIRECTORY_ENTRY_SECURITY.

Record
EUVD-2020-9437
Updated
2026-11-03
GitHub AdvisoriesGHSA-m3m4-q36r-mrf5 No score

radare2 4.5.0 misparses signature information in PE files, causing a segmentation fault in...

radare2 4.5.0 misparses signature information in PE files, causing a segmentation fault in r_x509_parse_algorithmidentifier in libr/util/x509.c. This is due to a malformed object identifier in IMAGE_DIRECTORY_ENTRY_SECURITY.

Record
GHSA-m3m4-q36r-mrf5
Updated
2026-11-02
OSVALPINE-CVE-2020-17487 7.5

radare2 4.5.0 misparses signature information in PE files, causing a segmentation fault in r_x509_parse_algorithmidentifier in libr/util/x509.c. This is due to a malformed object identifier in IMAGE_DIRECTORY_ENTRY_SECURITY.

Record
ALPINE-CVE-2020-17487
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-03
OSV 7.5

radare2 4.5.0 misparses signature information in PE files, causing a segmentation fault in r_x509_parse_algorithmidentifier in libr/util/x509.c. This is due to a malformed object identifier in IMAGE_DIRECTORY_ENTRY_SECURITY.

Record
CVE-2020-17487
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2020-17487 7.5

radare2 4.5.0 misparses signature information in PE files, causing a segmentation fault in r_x509_parse_algorithmidentifier in libr/util/x509.c. This is due to a malformed object identifier in IMAGE_DIRECTORY_ENTRY_SECURITY.

Record
UBUNTU-CVE-2020-17487
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVMGASA-2021-0160 No score

Updated radare2 packages fix security vulnerabilities

radare2 4.5.0 misparses DWARF information in executable files, causing a segmentation fault in parse_typedef in type_dwarf.c via a malformed DW_AT_name in the .debug_info section (CVE-2020-16269).

radare2 4.5.0 misparses signature information in PE files, causing a segmentation fault in r_x509_parse_algorithmidentifier in libr/util/x509.c. This is due to a malformed object identifier in IMAGE_DIRECTORY_ENTRY_SECURITY (CVE-2020-17487).

Also, the radare2-cutter package has been switched to a new upstream that uses a different versioning scheme.

Record
MGASA-2021-0160
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
radare2
Alpine:v3.18
 before 4.5.1-r0
4.5.1-r0
radare2
Alpine:v3.19
 before 4.5.1-r0
4.5.1-r0
radare2
Alpine:v3.20
 before 4.5.1-r0
4.5.1-r0
radare2
Alpine:v3.21
 before 4.5.1-r0
4.5.1-r0
radare2
Alpine:v3.22
 before 4.5.1-r0
4.5.1-r0
radare2
Alpine:v3.23
 before 4.5.1-r0
4.5.1-r0
radare2
Alpine:v3.24
 before 4.5.1-r0
4.5.1-r0
radare2
Mageia:7
From an advisory covering 2 CVEs
 before 5.1.1-1.mga7
5.1.1-1.mga7
radare2-cutter
Mageia:7
From an advisory covering 2 CVEs
 before 0.1.1-1.mga7
0.1.1-1.mga7
radare2
Mageia:8
From an advisory covering 2 CVEs
 before 5.1.1-1.mga8
5.1.1-1.mga8
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Affected packages
PackageAffectedFixed
radare2-cutter
Mageia:8
From an advisory covering 2 CVEs
 before 0.1.1-1.mga8
0.1.1-1.mga8
radare2
Ubuntu:16.04:LTS
 All versions, plus listed versions
0.9.6-3.1ubuntu1
 None known
radare2
Ubuntu:Pro:18.04:LTS
 All versions, plus listed versions
1.6.0+dfsg-12.0.0+dfsg-12.1.0+dfsg-12.3.0+dfsg-12.3.0+dfsg-22.3.0+dfsg-2ubuntu0.1~esm1
 None known
radare2
Ubuntu:Pro:20.04:LTS
 All versions, plus listed versions
3.2.1+dfsg-5build14.0.0+dfsg-14.2.1+dfsg-14.2.1+dfsg-24.2.1+dfsg-2ubuntu0.1~esm1
 None known
radare2
Ubuntu:Pro:24.04:LTS
 All versions, plus listed versions
5.5.0+dfsg-1ubuntu15.5.0+dfsg-1.1ubuntu25.5.0+dfsg-1.1ubuntu35.5.0+dfsg-1.1ubuntu3+esm1
 None known
radare2
Ubuntu:25.10
 All versions, plus listed versions
5.9.8+dfsg-25.9.8+dfsg-2ubuntu0.25.10.15.9.8+dfsg-2ubuntu0.25.10.2
 None known
radare2
Ubuntu:26.10
 All versions, plus listed versions
6.0.7+ds-16.1.6+ds-26.1.6+ds-36.1.8+ds-1
 None known
radare2
Ubuntu:26.04:LTS
 All versions, plus listed versions
5.9.8+dfsg-26.0.4+dfsg-16.0.7+ds-1
 None known

History

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

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

In short

CVE-2020-17487 is a high vulnerability (CVSS 7.5) in Radare Radare2, published August 11, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.89%, the 79th percentile. Fixed in radare2 4.5.1-r0.

References

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