CentOS Update for bash CESA-2011:1073 centos5 x86_64

Published: 2012-07-30 12:03:34
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:L/AC:M/Au:N/C:C/I:C/A:C

Summary:
The remote host is missing an update for the 'bash' Linux Distribution Package(s) announced via the referenced advisory.

Affected Versions:
bash on CentOS 5

Recommendations:
Please install the updated Linux Distribution Packages.

Technical Details:
Bash is the default shell for Red Hat Enterprise Linux. It was found that certain scripts bundled with the Bash documentation created temporary files in an insecure way. A malicious, local user could use this flaw to conduct a symbolic link attack, allowing them to overwrite the contents of arbitrary files accessible to the victim running the scripts. (CVE-2008-5374) This update fixes the following bugs: * When using the source builtin at location '.', occasionally, bash opted to preserve internal consistency and abort scripts. This caused bash to abort scripts that assigned values to read-only variables. This is now fixed to ensure that such scripts are now executed as written and not aborted. (BZ#448508) * When the tab key was pressed for auto-completion options for the typed text, the cursor moved to an unexpected position on a previous line if the prompt contained characters that cannot be viewed and a '\]'. This is now fixed to retain the cursor at the expected position at the end of the target line after autocomplete options correctly display. (BZ#463880) * Bash attempted to interpret the NOBITS .dynamic section of the ELF header. This resulted in a '^D: bad ELF interpreter: No such file or directory' message. This is fixed to ensure that the invalid '^D' does not appear in the error message. (BZ#484809) * The $RANDOM variable in Bash carried over values from a previous execution for later jobs. This is fixed and the $RANDOM variable generates a new random number for each use. (BZ#492908) * When Bash ran a shell script with an embedded null character, bash's source builtin parsed the script incorrectly. This is fixed and bash's source builtin correctly parses shell script null characters. (BZ#503701) * The bash manual page for 'trap' did not mention that signals ignored upon entry cannot be listed later. The manual page was updated for this update and now specifically notes that 'Signals ignored upon entry to the shell cannot be trapped, reset or listed'. (BZ#504904) * Bash's readline incorrectly displayed additional text when resizing the terminal window when text spanned more than one line, which caused incorrect display output. This is now fixed to ensure that text in more than one line in a resized window displays as expected. (BZ#525474) * Previously, bash incorrectly displayed 'Broken pipe' messages for builtins like 'echo' and 'printf' when output did not succeed due to EPIPE. This is fixed t ... Description truncated, please see the referenced URL(s) for more information.

Detection Type:
Linux Distribution Package

Solution Type:
Vendor Patch

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2008-5374

References:

http://lists.centos.org/pipermail/centos-announce/2011-September/017767.html

Severity
Medium
CVSS Score
6.9
Published
2012-07-30
Modified
2019-03-15
Category
CentOS Local Security Checks

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