CVE Feed

    Dashboard / CVE / CVE-2007-2453

    CVE-2007-2453

    The random number feature in Linux kernel 2.6 before 2.6.20.13, and 2.6.21.x before 2.6.21.4, (1) does not properly seed pools when there is no entropy, or (2) uses an incorrect cast when extracting entropy, which might cause the random number generator to provide the same values after reboots on systems without an entropy source.

    Published:May 30, 2007
    Last Modified:Apr 23, 2026
    EPS:Jun 11, 2007
    EPSS Score:0.00109
    CVSS Score:1.2

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-80925 — In the Linux kernel, the following vulnerability has been resolved: vlan: fix skb_under_panic and races when …
    CVE-2026-80924 (CVSS 7.5) — In the Linux kernel, the following vulnerability has been resolved: crypto: krb5 - use kfree_sensitive() for …
    CVE-2026-80923 — In the Linux kernel, the following vulnerability has been resolved: xhci: dbgtty: Fix unregister on tty_regis…
    CVE-2026-80922 — In the Linux kernel, the following vulnerability has been resolved: crypto: qcom-rng - Allow zero as a random…
    CVE-2026-80921 (CVSS 8.8) — In the Linux kernel, the following vulnerability has been resolved: KVM: s390: vsie: zero stale crypto bits …
    CVE-2026-80920 — In the Linux kernel, the following vulnerability has been resolved: io_uring: defer eventfd signaling when qu…
    CVE-2026-80919 — In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix recursive ww_mutex acquir…
    CVE-2026-80918 — In the Linux kernel, the following vulnerability has been resolved: HID: core: fix number/pointer type confus…
    CVE-2026-80917 — In the Linux kernel, the following vulnerability has been resolved: PCI: host-generic: Fix NULL pointer deref…
    CVE-2026-80916 — In the Linux kernel, the following vulnerability has been resolved: kcov: fix data corruption and race condit…

    References

    http://marc.info/?l=linux-kernel&m=118128610219959&w=2
    http://marc.info/?l=linux-kernel&m=118128622431272&w=2
    http://osvdb.org/37114
    http://secunia.com/advisories/25596
    http://secunia.com/advisories/25700
    http://secunia.com/advisories/25961
    http://secunia.com/advisories/26133
    http://secunia.com/advisories/26139
    http://secunia.com/advisories/26450
    http://secunia.com/advisories/26620
    http://secunia.com/advisories/26664
    http://www.debian.org/security/2007/dsa-1356
    http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.21.4
    http://www.mandriva.com/security/advisories?name=MDKSA-2007:171
    http://www.mandriva.com/security/advisories?name=MDKSA-2007:196
    http://www.mandriva.com/security/advisories?name=MDKSA-2007:216
    http://www.novell.com/linux/security/advisories/2007_43_kernel.html
    http://www.novell.com/linux/security/advisories/2007_51_kernel.html
    http://www.securityfocus.com/bid/24390
    http://www.securitytracker.com/id?1018248
    http://www.ubuntu.com/usn/usn-470-1
    http://www.ubuntu.com/usn/usn-486-1
    http://www.ubuntu.com/usn/usn-489-1
    http://www.vupen.com/english/advisories/2007/2105
    https://exchange.xforce.ibmcloud.com/vulnerabilities/34781
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9960
    https://rhn.redhat.com/errata/RHSA-2007-0376.html
    http://marc.info/?l=linux-kernel&m=118128610219959&w=2
    http://marc.info/?l=linux-kernel&m=118128622431272&w=2
    http://osvdb.org/37114
    http://secunia.com/advisories/25596
    http://secunia.com/advisories/25700
    http://secunia.com/advisories/25961
    http://secunia.com/advisories/26133
    http://secunia.com/advisories/26139
    http://secunia.com/advisories/26450
    http://secunia.com/advisories/26620
    http://secunia.com/advisories/26664
    http://www.debian.org/security/2007/dsa-1356
    http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.21.4
    http://www.mandriva.com/security/advisories?name=MDKSA-2007:171
    http://www.mandriva.com/security/advisories?name=MDKSA-2007:196
    http://www.mandriva.com/security/advisories?name=MDKSA-2007:216
    http://www.novell.com/linux/security/advisories/2007_43_kernel.html
    http://www.novell.com/linux/security/advisories/2007_51_kernel.html
    http://www.securityfocus.com/bid/24390
    http://www.securitytracker.com/id?1018248
    http://www.ubuntu.com/usn/usn-470-1
    http://www.ubuntu.com/usn/usn-486-1
    http://www.ubuntu.com/usn/usn-489-1
    http://www.vupen.com/english/advisories/2007/2105
    https://exchange.xforce.ibmcloud.com/vulnerabilities/34781
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9960
    https://rhn.redhat.com/errata/RHSA-2007-0376.html

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High