Upstream information
Description
Crypt::URandom versions from 0.41 before 0.55 for Perl is vulnerable to a heap buffer overflow in the XS function crypt_urandom_getrandom().The function does not validate that the length parameter is non-negative. If a negative value (e.g. -1) is supplied, the expression length + 1u causes an integer wraparound, resulting in a zero-byte allocation. The subsequent call to getrandom(data, length, GRND_NONBLOCK) passes the original negative value, which is implicitly converted to a large unsigned value (typically SIZE_MAX). This can result in writes beyond the allocated buffer, leading to heap memory corruption and application crash (denial of service).
In common usage, the length argument is typically hardcoded by the caller, which reduces the likelihood of attacker-controlled exploitation. Applications that pass untrusted input to this parameter may be affected.
SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having important severity.
| CVSS detail | CNA (CISA-ADP) | SUSE |
|---|---|---|
| Base Score | 7.5 | 7.5 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| Attack Vector | Network | Network |
| Attack Complexity | Low | Low |
| Privileges Required | None | None |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | None | None |
| Integrity Impact | None | None |
| Availability Impact | High | High |
| CVSSv3 Version | 3.1 | 3.1 |
| CVSS detail | SUSE |
|---|---|
| Base Score | 8.2 |
| Vector | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| Attack Vector | Network |
| Attack Complexity | Low |
| Attack Requirements | Present |
| Privileges Required | None |
| User Interaction | None |
| Vulnerable System Confidentiality Impact | None |
| Vulnerable System Integrity Impact | None |
| Vulnerable System Availability Impact | High |
| Subsequent System Confidentiality Impact | None |
| Subsequent System Integrity Impact | None |
| Subsequent System Availability Impact | None |
| CVSSv4 Version | 4.0 |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise Desktop 15 SP7 | perl-Crypt-URandom | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP7 | perl-Crypt-URandom | Affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP7 | perl-Crypt-URandom | Affected |
| SUSE Linux Enterprise Server 15 SP7 | perl-Crypt-URandom | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | perl-Crypt-URandom | Affected |
| openSUSE Leap 15.6 | perl-Crypt-URandom | Affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | perl-Crypt-URandom | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | perl-Crypt-URandom | Affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS | perl-Crypt-URandom | Affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS Extended Security | perl-Crypt-URandom | Affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | perl-Crypt-URandom | Affected |
| SUSE Linux Enterprise Server 15 SP5-LTSS | perl-Crypt-URandom | Affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | perl-Crypt-URandom | Affected |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | perl-Crypt-URandom | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | perl-Crypt-URandom | Affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE Enterprise Storage 7.1 | perl-Crypt-URandom | Affected |
| SUSE Linux Enterprise Desktop 15 SP6 | perl-Crypt-URandom | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | perl-Crypt-URandom | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | perl-Crypt-URandom | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | perl-Crypt-URandom | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | perl-Crypt-URandom | Affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP6 | perl-Crypt-URandom | Affected |
| SUSE Linux Enterprise Server 15 SP3-LTSS | perl-Crypt-URandom | Affected |
| SUSE Linux Enterprise Server 15 SP6 | perl-Crypt-URandom | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | perl-Crypt-URandom | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | perl-Crypt-URandom | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | perl-Crypt-URandom | Affected |
SUSE Timeline for this CVE
CVE page created: Tue Feb 17 00:00:06 2026CVE page last modified: Wed Feb 18 01:41:31 2026