In sig_verify() in x509.c in axTLS version 2.1.3 and before, the PKCS#1 v1.5 signature verification blindly trusts the declared lengths in the ASN.1 structure. Consequently, when small public exponents are being used, a remote attacker can generate purposefully crafted signatures (and put them on X.509 certificates) to induce illegal memory access and crash the verifier.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2018-11-07T20:00:00

Updated: 2024-08-05T10:17:37.778Z

Reserved: 2018-08-29T00:00:00

Link: CVE-2018-16149

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2018-11-07T20:29:00.557

Modified: 2019-01-31T15:04:11.257

Link: CVE-2018-16149

cve-icon Redhat

No data.