CVE-2009-3623
High
Description
The lookup_cb_cred function in fs/nfsd/nfs4callback.c in the nfsd4 subsystem in the Linux kernel before 2.6.31.2 attempts to access a credentials cache even when a client specifies the AUTH_NULL authentication flavor, which allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) via an NFSv4 mount request.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedOct 30, 2009
First seenOct 30, 2009
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v ≤ 2.6.31.1, 2.6.0, 2.6.1, 2.6.2, 2.6.3, 2.6.4, 2.6.5, 2.6.6, 2.6.7, 2.6.8, 2.6.8.1, 2.6.9, 2.6.10, 2.6.11, 2.6.11.1, 2.6.11.2, 2.6.11.3, 2.6.11.4, 2.6.11.5, 2.6.11.6, 2.6.11.7, 2.6.11.8, 2.6.11.9, 2.6.11.10, 2.6.11.11, 2.6.11.12, 2.6.12, 2.6.12.1, 2.6.12.2, 2.6.12.3, 2.6.12.4, 2.6.12.5, 2.6.12.6, 2.6.13, 2.6.13.1, 2.6.13.2, 2.6.13.3, 2.6.13.4, 2.6.13.5, 2.6.14, 2.6.14.1, 2.6.14.2, 2.6.14.3, 2.6.14.4, 2.6.14.5, 2.6.14.6, 2.6.14.7, 2.6.15, 2.6.15.1, 2.6.15.2, 2.6.15.3, 2.6.15.4, 2.6.15.5, 2.6.15.6, 2.6.15.7, 2.6.16, 2.6.16.1, 2.6.16.2, 2.6.16.3, 2.6.16.4, 2.6.16.5, 2.6.16.6, 2.6.16.7, 2.6.16.8, 2.6.16.9, 2.6.16.10, 2.6.16.11, 2.6.16.12, 2.6.16.13, 2.6.16.14, 2.6.16.15, 2.6.16.16, 2.6.16.17, 2.6.16.18, 2.6.16.19, 2.6.16.20, 2.6.16.21, 2.6.16.22, 2.6.16.23, 2.6.16.24, 2.6.16.25, 2.6.16.26, 2.6.16.27, 2.6.16.28, 2.6.16.29, 2.6.16.30, 2.6.16.31, 2.6.16.32, 2.6.16.33, 2.6.16.34, 2.6.16.35, 2.6.16.36, 2.6.16.37, 2.6.16.38, 2.6.16.39, 2.6.16.40, 2.6.16.41, 2.6.16.42, 2.6.16.43, 2.6.16.44, 2.6.16.45, 2.6.16.46, 2.6.16.47, 2.6.16.48, 2.6.16.49, 2.6.16.50, 2.6.16.51, 2.6.16.52, 2.6.16.53, 2.6.16.54, 2.6.16.55, 2.6.16.56, 2.6.16.57, 2.6.16.58, 2.6.16.59, 2.6.16.60, 2.6.16.61, 2.6.16.62, 2.6.17, 2.6.17.1, 2.6.17.2, 2.6.17.3, 2.6.17.4, 2.6.17.5, 2.6.17.6, 2.6.17.7, 2.6.17.8, 2.6.17.9, 2.6.17.10, 2.6.17.11, 2.6.17.12, 2.6.17.13, 2.6.17.14, 2.6.18, 2.6.18.1, 2.6.18.2, 2.6.18.3, 2.6.18.4, 2.6.18.5, 2.6.18.6, 2.6.18.7, 2.6.18.8, 2.6.19, 2.6.19.1, 2.6.19.2, 2.6.19.3, 2.6.19.4, 2.6.19.5, 2.6.19.6, 2.6.19.7, 2.6.20, 2.6.20.1, 2.6.20.2, 2.6.20.3, 2.6.20.4, 2.6.20.5, 2.6.20.6, 2.6.20.7, 2.6.20.8, 2.6.20.9, 2.6.20.10, 2.6.20.11, 2.6.20.12, 2.6.20.13, 2.6.20.14, 2.6.20.15, 2.6.20.16, 2.6.20.17, 2.6.20.18, 2.6.20.19, 2.6.20.20, 2.6.20.21, 2.6.21, 2.6.21.1, 2.6.21.2, 2.6.21.3, 2.6.21.4, 2.6.21.5, 2.6.21.6, 2.6.21.7, 2.6.22, 2.6.22.1, 2.6.22.2, 2.6.22.3, 2.6.22.4, 2.6.22.5, 2.6.22.6, 2.6.22.7, 2.6.22.8, 2.6.22.9, 2.6.22.10, 2.6.22.11, 2.6.22.12, 2.6.22.13, 2.6.22.14, 2.6.22.15, 2.6.22.16, 2.6.22.17, 2.6.22.18, 2.6.22.19 | — |
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