Detections
Analytics
GLSA-200710-11 : X Font Server: Multiple Vulnerabilities
high Nessus Plugin ID 27046
Synopsis
The remote Gentoo host is missing one or more security-related patches.Description
The remote host is affected by the vulnerability described in GLSA-200710-11 (X Font Server: Multiple Vulnerabilities)iDefense reported that the xfs init script does not correctly handle a race condition when setting permissions of a temporary file (CVE-2007-3103). Sean Larsson discovered an integer overflow vulnerability in the build_range() function possibly leading to a heap-based buffer overflow when handling 'QueryXBitmaps' and 'QueryXExtents' protocol requests (CVE-2007-4568). Sean Larsson also discovered an error in the swap_char2b() function possibly leading to a heap corruption when handling the same protocol requests (CVE-2007-4990).
Impact :
The first issue would allow a local attacker to change permissions of arbitrary files to be world-writable by performing a symlink attack.
The second and third issues would allow a local attacker to execute arbitrary code with privileges of the user running the X Font Server, usually xfs.
Workaround :
There is no known workaround at this time.
Solution
All X Font Server users should upgrade to the latest version:# emerge --sync # emerge --ask --oneshot --verbose '>=x11-apps/xfs-1.0.5'
See Also
Plugin Details
Severity: High
ID: 27046
File Name: gentoo_GLSA-200710-11.nasl
Version: 1.17
Type: local
Family: Gentoo Local Security Checks
Published: 10/15/2007
Updated: 1/6/2021
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: High
Score: 7.3
CVSS v2
Risk Factor: High
Base Score: 7.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
Vulnerability Information
CPE: p-cpe:/a:gentoo:linux:xfs, cpe:/o:gentoo:linux
Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 10/12/2007
Vulnerability Publication Date: 10/2/2007
Exploitable With
CANVAS (CANVAS)