CVE-2011-2184
The key_replace_session_keyring function in security/keys/process_keys.c in the Linux kernel before 2.6.39.1 does not initialize a certain structure member, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) or…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.38%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The key_replace_session_keyring function in security/keys/process_keys.c in the Linux kernel before 2.6.39.1 does not initialize a certain structure member, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) or possibly have unspecified other impact via a KEYCTL_SESSION_TO_PARENT argument to the keyctl function, a different vulnerability than CVE-2010-2960.
- CVSS 2.0
- 7.2 HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
- EPSS
- 0.38% probability · 32th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- secalert@redhat.com
References
- http://alt.swiecki.net/linux_kernel/sys_open-kmem_cache_alloc-2.6.39-rc4.txtBroken Link
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f7285b5d631fd6096b11c6af0058ed3a2b30ef4e
- http://securityreason.com/securityalert/8371Patch, Third Party Advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.1Broken Link
- http://www.openwall.com/lists/oss-security/2011/06/03/2Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2011/06/06/2Mailing List, Patch, Third Party Advisory
- https://lkml.org/lkml/2011/5/23/199Third Party Advisory
- https://lkml.org/lkml/2011/5/24/502Third Party Advisory
- https://lkml.org/lkml/2011/5/25/265Patch, Third Party Advisory
- http://alt.swiecki.net/linux_kernel/sys_open-kmem_cache_alloc-2.6.39-rc4.txtBroken Link
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f7285b5d631fd6096b11c6af0058ed3a2b30ef4e
- http://securityreason.com/securityalert/8371Patch, Third Party Advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.1Broken Link
- http://www.openwall.com/lists/oss-security/2011/06/03/2Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2011/06/06/2Mailing List, Patch, Third Party Advisory
- https://lkml.org/lkml/2011/5/23/199Third Party Advisory
- https://lkml.org/lkml/2011/5/24/502Third Party Advisory
- https://lkml.org/lkml/2011/5/25/265Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.