Information disclosure in Linux kernel - CVE-2010-4655
Published: July 18, 2011 / Updated: August 11, 2020
Vulnerability identifier: #VU44879
CSH Severity: Low
CVSS v4: 2.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2010-4655
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
net/core/ethtool.c in the Linux kernel before 2.6.36 does not initialize certain data structures, which allows local users to obtain potentially sensitive information from kernel heap memory by leveraging the CAP_NET_ADMIN capability for an ethtool ioctl call.
Affected software
Linux kernel
Ubuntu
linux (Ubuntu package)
Ubuntu
linux (Ubuntu package)
How to mitigate CVE-2010-4655
Install update from vendor's website.
linux (Ubuntu package) - addressed in versions 2.6.24-29.90, 2.6.31-22.70, 2.6.32-27.49, 2.6.35-24.42
External References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b00916b189d13a615ff05c9242201135992fcda3
- http://openwall.com/lists/oss-security/2011/01/24/9
- http://openwall.com/lists/oss-security/2011/01/25/3
- http://openwall.com/lists/oss-security/2011/01/25/4
- http://openwall.com/lists/oss-security/2011/01/25/5
- http://openwall.com/lists/oss-security/2011/01/28/1
- http://secunia.com/advisories/46397
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.36
- http://www.securityfocus.com/archive/1/520102/100/0/threaded
- http://www.securityfocus.com/bid/45972
- http://www.ubuntu.com/usn/USN-1146-1
- http://www.vmware.com/security/advisories/VMSA-2011-0012.html
- https://bugzilla.redhat.com/show_bug.cgi?id=672428
- https://lkml.org/lkml/2010/10/7/297