Ubuntu 8.04 LTS / 9.10 / 10.04 LTS / 10.10 : eglibc, glibc vulnerability (USN-1009-2)

High Nessus Plugin ID 51501

Synopsis

The remote Ubuntu host is missing one or more security-related patches.

Description

USN-1009-1 fixed vulnerabilities in the GNU C library. Colin Watson discovered that the fixes were incomplete and introduced flaws with setuid programs loading libraries that used dynamic string tokens in their RPATH. If the 'man' program was installed setuid, a local attacker could exploit this to gain 'man' user privileges, potentially leading to further privilege escalations. Default Ubuntu installations were not affected.

Tavis Ormandy discovered multiple flaws in the GNU C Library's handling of the LD_AUDIT environment variable when running a privileged binary. A local attacker could exploit this to gain root privileges. (CVE-2010-3847, CVE-2010-3856).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected packages.

See Also

https://usn.ubuntu.com/1009-2/

Plugin Details

Severity: High

ID: 51501

File Name: ubuntu_USN-1009-2.nasl

Version: 1.15

Type: local

Agent: unix

Published: 2011/01/12

Updated: 2019/09/19

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.2

Temporal Score: 6

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:F/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:eglibc-source, p-cpe:/a:canonical:ubuntu_linux:glibc-doc, p-cpe:/a:canonical:ubuntu_linux:glibc-source, p-cpe:/a:canonical:ubuntu_linux:libc-bin, p-cpe:/a:canonical:ubuntu_linux:libc-dev-bin, p-cpe:/a:canonical:ubuntu_linux:libc6, p-cpe:/a:canonical:ubuntu_linux:libc6-amd64, p-cpe:/a:canonical:ubuntu_linux:libc6-dbg, p-cpe:/a:canonical:ubuntu_linux:libc6-dev, p-cpe:/a:canonical:ubuntu_linux:libc6-dev-amd64, p-cpe:/a:canonical:ubuntu_linux:libc6-dev-i386, p-cpe:/a:canonical:ubuntu_linux:libc6-i386, p-cpe:/a:canonical:ubuntu_linux:libc6-i686, p-cpe:/a:canonical:ubuntu_linux:libc6-pic, p-cpe:/a:canonical:ubuntu_linux:libc6-prof, p-cpe:/a:canonical:ubuntu_linux:libc6-xen, p-cpe:/a:canonical:ubuntu_linux:nscd, cpe:/o:canonical:ubuntu_linux:10.04:-:lts, cpe:/o:canonical:ubuntu_linux:10.10, cpe:/o:canonical:ubuntu_linux:8.04:-:lts, cpe:/o:canonical:ubuntu_linux:9.10

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: 2011/01/11

Vulnerability Publication Date: 2011/01/07

Exploitable With

CANVAS (CANVAS)

Core Impact

Metasploit (glibc LD_AUDIT Arbitrary DSO Load Privilege Escalation)

Reference Information

CVE: CVE-2010-3847, CVE-2010-3856, CVE-2011-0536

BID: 44154, 44347

USN: 1009-2