Lucene search

K
redhatRedHatRHSA-2012:1207
HistoryAug 27, 2012 - 12:00 a.m.

(RHSA-2012:1207) Moderate: glibc security and bug fix update

2012-08-2700:00:00
access.redhat.com
13

4.6 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:P/A:P

0.0004 Low

EPSS

Percentile

13.1%

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.

4.6 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:P/A:P

0.0004 Low

EPSS

Percentile

13.1%