CVE-2026-5260

Discovered by AISLEPUBLISHEDCWE-126

Description

A flaw was found in libgnutls. A remote attacker, by sending an extremely short premaster secret during an RSA key exchange to a server using an RSA key backed by a PKCS#11 token, could trigger a short heap overread. This memory corruption vulnerability could lead to information disclosure.

CVSS Base Scores

CVSS v3.1(Primary)
8.2

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Affected Products

VendorProductVersionStatus
Red HatGnuTLS0:3.8.10-4.el10_2unaffected
Red HatGnuTLS0:3.8.9-9.el10_0.19
Red HatGnuTLS0:3.6.16-8.el8_10.6
Red HatGnuTLS0:3.6.14-10.el8_4.1
Red HatGnuTLS0:4.13-3.el8_4.1
Red HatGnuTLS0:3.6.16-5.el8_6.5
Red HatGnuTLS0:4.13-3.el8_6.2
Red HatGnuTLS0:3.6.16-7.el8_8.4
Red HatGnuTLS0:4.13-4.el8_8.1
Red HatGnuTLS0:3.8.10-4.el9_8
Red HatGnuTLS0:3.8.3-4.el9_4.6
Red HatGnuTLS0:3.8.3-6.el9_6.4
Red HatGnuTLS1782159791
Red HatGnuTLS1782166952
Red HatGnuTLS1781525684
Red HatGnuTLS1781525671
Red HatGnuTLS1781525693
Red HatGnuTLS1781525739

Credits

  • Red Hat would like to thank Joshua Rogers (AISLE Research Team) for reporting this issue.

References