How severe is CVE-2008-1940?

CVE-2008-1940 has a CVSS 2.0 base score of 4.6, rated medium severity.

Is CVE-2008-1940 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-1940?

CVE-2008-1940 primarily affects Grsecurity Grsecurity Kernel Patch. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-1940?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2008-1940 published?

CVE-2008-1940 was published on 2008-04-25 and last updated on 2026-06-16.

CVE-2008-1940

CVE-2008-1940 is a medium-severity vulnerability in Grsecurity Grsecurity Kernel Patch with a CVSS 2.0 base score of 4.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-264.

Key facts

Severity: Medium (CVSS 2.0 base score 4.6)
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Grsecurity Grsecurity Kernel Patch
Published: 2008-04-25
Last modified: 2026-06-16

Description

The RBAC functionality in grsecurity before 2.1.11-2.6.24.5 and 2.1.11-2.4.36.2 does not enforce user_transition_deny and user_transition_allow rules for the (1) sys_setfsuid and (2) sys_setfsgid calls, which allows local users to bypass restrictions for those calls.

Frequently asked questions

What is CVE-2008-1940?: The RBAC functionality in grsecurity before 2.1.11-2.6.24.5 and 2.1.11-2.4.36.2 does not enforce user_transition_deny and user_transition_allow rules for the (1) sys_setfsuid and (2) sys_setfsgid calls, which allows local users to bypass restrictions for those calls.
How severe is CVE-2008-1940?: CVE-2008-1940 has a CVSS 2.0 base score of 4.6, rated medium severity.
Is CVE-2008-1940 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-1940?: CVE-2008-1940 primarily affects Grsecurity Grsecurity Kernel Patch. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2008-1940?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2008-1940 published?: CVE-2008-1940 was published on 2008-04-25 and last updated on 2026-06-16.

References

Affected products (7)

cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.4.33:*:*:*:*:*:*:*
cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.4.33.2:*:*:*:*:*:*:*
cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.4.33.3:*:*:*:*:*:*:*
cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.4.33.4:*:*:*:*:*:*:*
cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.4.34:*:*:*:*:*:*:*
cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.6.18:*:*:*:*:*:*:*
cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.6.24.4:*:*:*:*:*:*:*

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