Mandrake Linux Security Advisory : util-linux (MDKSA-2002:047)

Michal Zalewski found a vulnerability in the util-linux package with the chfn utility. This utility allows users to modify some information in the /etc/passwd file, and is installed setuid root. Using a carefully crafted attack sequence, an attacker can exploit a complex file locking and...

Mandrake Linux Security Advisory : util-linux (MDKSA-2003:016)

The util-linux package provides the mcookie utility, a tool for generating random cookies that can be used for X authentication. The util-linux packages that were distributed with Mandrake Linux 8.2 and 9.0 had a patch that made it use /dev/urandom instead of /dev/random, which resulted in the...

RHEL 2.1 : util-linux (RHSA-2004:056)

Updated util-linux packages that fix an information leak in the login program are now available. The util-linux package contains a large variety of low-level system utilities that are necessary for a Linux system to function. In some situations, the login program could use a pointer that had been...

RHEL 2.1 : util-linux (RHSA-2002:137)

The util-linux package shipped with Red Hat Linux Advanced Server contains a locally exploitable vulnerability. The util-linux package contains a large variety of low-level system utilities that are necessary for a Linux system to function. The 'chfn' utility included in this package allows users...

Util-linux login may leak sensitive data

Background Util-linux is a suite of essential system utilites, including login, agetty, fdisk. Description In some situations the login program could leak sensitive data due to an incorrect usage of a reallocated pointer. NOTE: Only users who have PAM support disabled on their systems i.e. -PAM i...

util-linux login program discloses sensitive information

Overview util-linux login program uses a pointer that was previously freed and reallocated which could allow an attacker to gain access to sensitive information. Description util-linux is shipped with Red Hat and numerous other Linux distributions. It contains a collection of utility programs, su...

CVE-2004-0080

The login program in util-linux 2.11 and earlier uses a pointer after it has been freed and reallocated, which could cause login to leak sensitive data...

Moderate: Red Hat Security Advisory: util-linux security update

Updated util-linux packages that fix an information leak in the login program are now available. The util-linux package contains a large variety of low-level system utilities that are necessary for a Linux system to function. In some situations, the login program could use a pointer that had been...

CVE-2002-0638

CVE-2002-0638 concerns the util-linux package’s login utilities (notably setpwnam.c used by chfn/chsh). The advisory describes a race condition caused by inadequate locking of a temporary file used when modifying /etc/passwd, enabling a local attacker to escalate privileges. The issue affects Red...

CVE-2002-0638

setpwnam.c in the util-linux package, as included in Red Hat Linux 7.3 and earlier, and other operating systems, does not properly lock a temporary file when modifying /etc/passwd, which may allow local users to gain privileges via a complex race condition that uses an open file descriptor in...

CVE-2003-0094

A patch for mcookie in the util-linux package for Mandrake Linux 8.2 and 9.0 uses /dev/urandom instead of /dev/random, which causes mcookie to use an entropy source that is more predictable than expected, which may make it easier for certain types of attacks to succeed...

CVE-2002-0638

setpwnam.c in the util-linux package, as included in Red Hat Linux 7.3 and earlier, and other operating systems, does not properly lock a temporary file when modifying /etc/passwd, which may allow local users to gain privileges via a complex race condition that uses an open file descriptor in...

Privelege escalation in util-linux chfn

Unchecked race conditions under file decriptors leaves ability to modify /etc/passwd...

RAZOR advisory: Linux util-linux chfn local root vulnerability

Linux util-linux chfn local root vulnerability Issue Date: July 29, 2002 Contact: Michal Zalewski CVE: CAN-2002-0638 CERT vulnerability note: http://www.kb.cert.org/vuls/id/405955 the URL should be accessible soon Topic: A locally exploitable vulnerability is present in the util-linux package...

Moderate: Red Hat Security Advisory: util-linux security update

The util-linux package shipped with Red Hat Linux Advanced Server contains a locally exploitable vulnerability. The util-linux package contains a large variety of low-level system utilities that are necessary for a Linux system to function. The 'chfn' utility included in this package allows users...

Moderate: Red Hat Security Advisory: : : : Updated util-linux package fixes password locking race

A locally exploitable vulnerability is present in the util-linux package which shipped with Red Hat Linux. Updated 8 July 2003 Added packages for Red Hat Linux on IBM iSeries and pSeries systems. The util-linux package contains a large variety of low-level system utilities that are necessary for ...

util-linux package vulnerable to privilege escalation when "ptmptmp" file is not removed properly when using "chfn" utility

Overview The util-linux package contains a race condition vulnerability that can be used to elevate privileges on the system. Description util-linux is shipped with Red Hat Linux and numerous other Linux distributions. It contains a collection of utility programs, such as fstab, mkfs, and chfn. T...

CVE-2001-1175

vipw in the util-linux package before 2.10 causes /etc/shadow to be world-readable in some cases, which would make it easier for local users to perform brute force password guessing...

CVE-2001-1147

The PAM implementation in /bin/login of the util-linux package before 2.11 causes a password entry to be rewritten across multiple PAM calls, which could provide the credentials of one user to a different user, when used in certain PAM modules such as pamlimits...

CVE-2001-1147

CVE-2001-1147 affects util-linux’s /bin/login PAM handling prior to version 2.11, where a static pwent buffer could be rewritten across PAM calls. In non-default configurations (notably with pam_limits), this could leak one user’s credentials to another. The advisories (Mandrake, Red Hat) documen...