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Ubuntu Server 20.04 LTS: USN-2021-1234-1 High: OpenSSL Vulnerability

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Calendar Grey August 27, 2012
Scroller Redhat
Red Hat Security Advisory Synopsis: Moderate: glibc security and bug fix update Advisory ID: RHSA-20
Updated glibc packages that fix multiple security issues and one bug are now available for Red Hat Enterprise Linux 5

Solution

Before applying this update, make sure all previously-released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258

Summary

The glibc packages provide the standard C and standard math libraries used by multiple programs on the system. Without these libraries, the Linux system cannot function properly.
Multiple integer overflow flaws, leading to stack-based buffer overflows, were found in glibc's functions for converting a string to a numeric representation (strtod(), strtof(), and strtold()). If an application used such a function on attacker controlled input, it could cause the application to crash or, potentially, execute arbitrary code. (CVE-2012-3480)
This update also fixes the following bug:
* Previously, logic errors in various mathematical functions, including exp, exp2, expf, exp2f, pow, sin, tan, and rint, caused inconsistent results when the functions were used with the non-default rounding mode. This could also cause applications to crash in some cases. With this update, the functions now give correct results across the four different rounding modes. (BZ#839411)
All users of glibc are advised to upgrade to these updated packages, which contain backported patches to correct these issues.

Topics%20covered

Topics Covered

security advisory security issue Red Hat Enterprise Linux moderate severity glibc overflow

References

https://access.redhat.com/security/cve/CVE-2012-3480 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
i386: glibc-2.5-81.el5_8.7.i386.rpm glibc-2.5-81.el5_8.7.i686.rpm glibc-common-2.5-81.el5_8.7.i386.rpm glibc-debuginfo-2.5-81.el5_8.7.i386.rpm glibc-debuginfo-2.5-81.el5_8.7.i686.rpm glibc-debuginfo-common-2.5-81.el5_8.7.i386.rpm glibc-devel-2.5-81.el5_8.7.i386.rpm glibc-headers-2.5-81.el5_8.7.i386.rpm glibc-utils-2.5-81.el5_8.7.i386.rpm nscd-2.5-81.el5_8.7.i386.rpm
x86_64: glibc-2.5-81.el5_8.7.i686.rpm glibc-2.5-81.el5_8.7.x86_64.rpm glibc-common-2.5-81.el5_8.7.x86_64.rpm glibc-debuginfo-2.5-81.el5_8.7.i386.rpm glibc-debuginfo-2.5-81.el5_8.7.i686.rpm glibc-debuginfo-2.5-81.el5_8.7.x86_64.rpm glibc-debuginfo-common-2.5-81.el5_8.7.i386.rpm glibc-devel-2.5-81.el5_8.7.i386.rpm glibc-devel-2.5-81.el5_8.7.x86_64.rpm glibc-headers-2.5-81.el5_8.7.x86_64.rpm glibc-utils-2.5-81.el5_8.7.x86_64.rpm nscd-2.5-81.el5_8.7.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
i386: glibc-2.5-81.el5_8.7.i386.rpm glibc-2.5-81.el5_8.7.i686.rpm glibc-common-2.5-81.el5_8.7.i386.rpm glibc-debuginfo-2.5-81.el5_8.7.i386.rpm glibc-debuginfo-2.5-81.el5_8.7.i686.rpm glibc-debuginfo-common-2.5-81.el5_8.7.i386.rpm glibc-devel-2.5-81.el5_8.7.i386.rpm glibc-headers-2.5-81.el5_8.7.i386.rpm glibc-utils-2.5-81.el5_8.7.i386.rpm

Read the Full Advisory


Advisory ID: RHSA-2012:1207-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2012:1207.html
Issue date: 2012-08-27

Topic

Updated glibc packages that fix multiple security issues and one bug arenow available for Red Hat Enterprise Linux 5.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.

Topics%20covered

Topics Covered

security advisory security issue Red Hat Enterprise Linux moderate severity glibc overflow

Relevant Releases Architectures

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

Bugs Fixed

847715 - CVE-2012-3480 glibc: Integer overflows, leading to stack-based buffer overflows in strto* related routines

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