PT-2020-15022 · Radare2+1 · Radare2+1

Architect + 1 · Published 2020-08-11 · Updated 2021-03-30 · CVE-2020-17487

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions radare2 version 4.5.0

Description The issue is caused by radare2 misparsing signature information in PE files, leading to a segmentation fault in the r x509 parse algorithmidentifier function in libr/util/x509.c. This occurs due to a malformed object identifier in IMAGE DIRECTORY ENTRY SECURITY.

Recommendations For radare2 version 4.5.0, consider disabling the r x509 parse algorithmidentifier function as a temporary workaround until a patch is available. Restrict access to the libr/util/x509.c module to minimize the risk of exploitation. Avoid processing PE files with malformed object identifiers in IMAGE DIRECTORY ENTRY SECURITY until the issue is resolved.

Exploit

Fix

Related Identifiers

ALT-PU-2020-2739

CVE-2020-17487

MGASA-2021-0160

Affected Products

Alt Linux

Radare2

References · 17

• 🔥 https://github.com/radareorg/radare2/issues/17431 · Exploit
• https://ubuntu.com/security/CVE-2020-17487 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2021-0160 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-17487 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2021-0160.html · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-17487 · Security Note
• https://lists.fedoraproject.org/archives/list/[e-mail]/thread/45SGGCWFIIV7N2X2QZRREHOW7ODT3IH7 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-17487 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-17487 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-17487 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZJET3RR6W7LAK4H6VPTMAZS24W7XYHRZ · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/45SGGCWFIIV7N2X2QZRREHOW7ODT3IH7 · Vendor Advisory
• https://github.com/rizinorg/cutter/releases/tag/v1.12.0 · Note
• https://github.com/radareorg/r2cutter/releases/tag/0.1.1 · Note
• https://github.com/radareorg/r2cutter/releases/tag/0.1.0 · Note