RHEL 2.1 : glibc (RHSA-2003:249)

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Synopsis :

The remote Red Hat host is missing one or more security updates.

Description :

Updated glibc packages that fix a number of bugs as well as a buffer
overflow issue are now available.

The GNU libc package (known as glibc) contains the standard C
libraries used by applications.

A bug in the getgrouplist function can cause a buffer overflow if the
size of the group list is too small to hold all the user's groups.
This overflow can cause segmentation faults in user applications,
which may have security implications, depending on the application in
question. This vulnerability exists only when an administrator has
placed a user in a number of groups larger than that expected by an
application. Therefore, there is no risk in instances where users are
members of few groups. The Common Vulnerabilities and Exposures
project (cve.mitre.org) has assigned the name CVE-2003-0689 to this

In addition, a number of other bugs in glibc have been fixed :

- An error prevented gdb from correctly debugging programs
linked to libpthread.

- A race condition existed in the malloc routine for IA64
platforms, which could cause memory corruption.

- An error in pthread_spinlocks prevents spinlocks from
functioning correctly on IA64 platforms.

All users should upgrade to these errata packages, which contain
patches to the glibc libraries correcting these issues.

See also :


Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.5

Family: Red Hat Local Security Checks

Nessus Plugin ID: 12414 ()

Bugtraq ID:

CVE ID: CVE-2003-0689

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