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Ubuntu 14.04 LTS : Linux kernel vulnerabilities (USN-2544-1)
medium Nessus Plugin ID 82071
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Synopsis
The remote Ubuntu host is missing one or more security updates.Description
The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-2544-1 advisory.Eric Windisch discovered flaw in how the Linux kernel's XFS file system replaces remote attributes. A local access with access to an XFS file system could exploit this flaw to escalate their privileges.
(CVE-2015-0274)
A flaw was discovered in the automatic loading of modules in the crypto subsystem of the Linux kernel. A local user could exploit this flaw to load installed kernel modules, increasing the attack surface and potentially using this to gain administrative privileges. (CVE-2013-7421)
The Linux kernel's splice system call did not correctly validate its parameters. A local, unprivileged user could exploit this flaw to cause a denial of service (system crash). (CVE-2014-7822)
A flaw was discovered in the crypto subsystem when screening module names for automatic module loading if the name contained a valid crypto module name, eg. vfat(aes). A local user could exploit this flaw to load installed kernel modules, increasing the attack surface and potentially using this to gain administrative privileges. (CVE-2014-9644)
Carl H Lunde discovered that the UDF file system (CONFIG_UDF_FS) failed to verify symlink size info. A local attacker, who is able to mount a malicous UDF file system image, could exploit this flaw to cause a denial of service (system crash) or possibly cause other undesired behaviors. (CVE-2014-9728)
Carl H Lunde discovered that the UDF file system (CONFIG_UDF_FS) did not valid inode size information . A local attacker, who is able to mount a malicous UDF file system image, could exploit this flaw to cause a denial of service (system crash) or possibly cause other undesired behaviors. (CVE-2014-9729)
Carl H Lunde discovered that the UDF file system (CONFIG_UDF_FS) did not correctly verify the component length for symlinks. A local attacker, who is able to mount a malicous UDF file system image, could exploit this flaw to cause a denial of service (system crash) or possibly cause other undesired behaviors.
(CVE-2014-9730)
Carl H Lunde discovered an information leak in the UDF file system (CONFIG_UDF_FS). A local attacker, who is able to mount a malicous UDF file system image, could exploit this flaw to read potential sensitve kernel memory. (CVE-2014-9731)
Tenable has extracted the preceding description block directly from the Ubuntu security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the affected kernel package.See Also
Plugin Details
Severity: Medium
ID: 82071
File Name: ubuntu_USN-2544-1.nasl
Version: 1.18
Type: local
Agent: unix
Family: Ubuntu Local Security Checks
Published: 3/25/2015
Updated: 8/27/2024
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: High
Score: 7.1
CVSS v2
Risk Factor: High
Base Score: 7.2
Temporal Score: 5.6
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2015-0274
CVSS v3
Risk Factor: Medium
Base Score: 5.5
Temporal Score: 5
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
CVSS Score Source: CVE-2014-9730
Vulnerability Information
CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-48-powerpc-e500, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-48-powerpc-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-48-powerpc64-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-48-powerpc-e500mc, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-48-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-48-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-48-powerpc64-emb, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-48-lowlatency
Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 3/24/2015
Vulnerability Publication Date: 3/2/2015
Reference Information
CVE: CVE-2013-7421, CVE-2014-7822, CVE-2014-9644, CVE-2014-9728, CVE-2014-9729, CVE-2014-9730, CVE-2014-9731, CVE-2015-0274
USN: 2544-1