What’s Vulnerable › Vulnerabilities

CVE-2010-2798

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2010-09-08 · updated 2026-06-16
• Weakness: CWE-476

Description

The gfs2_dirent_find_space function in fs/gfs2/dir.c in the Linux kernel before 2.6.35 uses an incorrect size value in calculations associated with sentinel directory entries, which allows local users to cause a denial of service (NULL pointer dereference and panic) and possibly have unspecified other impact by renaming a file in a GFS2 filesystem, related to the gfs2_rename function in fs/gfs2/ops_inode.c.

Affected products

• Avaya Aura Communication Manager: 5.2
• Avaya Aura Presence Services: 6.0, 6.1, 6.1.1
• Avaya Aura Session Manager: 1.1, 5.2, 6.0
• Avaya Aura System Manager: 5.2, 6.0, 6.1, 6.1.1
• Avaya Aura System Platform: 1.1, 6.0, 6.0-sp1
• Avaya Iq: 5.0, 5.1
• Avaya Voice Portal: 5.0, 5.1, 5.1-sp1
• Canonical Ubuntu Linux: 6.06, 8.04, 9.04, 9.10, 10.04, 10.10
• Debian Linux: 5.0
• Linux kernel: before 2.6.35 — fixed in 2.6.35
• Opensuse: 11.1
• SUSE Linux Enterprise High Availability Extension: 11, 11-sp1
• Suse Linux Enterprise Desktop: 11, 11-sp1
• SUSE Linux Enterprise: 11, 11-sp1
• VMware ESX: 4.0, 4.1

How to fix

Upgrade to a fixed version: Linux kernel 2.6.35. Check the vendor advisory for mitigations.

References

• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=728a756b8fcd22d80e2dbba8117a8a3aafd3f203
• http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00004.html
• http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00000.html
• http://secunia.com/advisories/46397
• http://securitytracker.com/id?1024386
• http://support.avaya.com/css/P8/documents/100113326
• http://www.debian.org/security/2010/dsa-2094
• http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35
• http://www.mandriva.com/security/advisories?name=MDVSA-2010:198
• http://www.openwall.com/lists/oss-security/2010/08/02/1
• http://www.openwall.com/lists/oss-security/2010/08/02/10
• http://www.redhat.com/support/errata/RHSA-2010-0660.html

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