vulnerability
Red Hat: CVE-2025-69420: openssl: OpenSSL: Denial of Service via malformed TimeStamp Response (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:M/Au:N/C:N/I:N/A:C) | Jan 27, 2026 | Jan 29, 2026 | Jan 29, 2026 |
Severity
7
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:C)
Published
Jan 27, 2026
Added
Jan 29, 2026
Modified
Jan 29, 2026
Description
A flaw was found in OpenSSL. A type confusion vulnerability exists in the TimeStamp Response verification code, where an ASN1_TYPE union member is accessed without proper type validation. A remote attacker can exploit this by providing a malformed TimeStamp Response to an application that verifies timestamp responses. This can lead to an invalid or NULL pointer dereference, resulting in a Denial of Service (DoS) due to an application crash.
Solutions
redhat-upgrade-opensslredhat-upgrade-openssl-debuginforedhat-upgrade-openssl-debugsourceredhat-upgrade-openssl-develredhat-upgrade-openssl-libsredhat-upgrade-openssl-libs-debuginforedhat-upgrade-openssl-perl
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