eglibc - Security Update
Summary
DSA-3480-1: eglibc - security update. Affects eglibc versions < 2.13-38+deb7u10. Fixed in 2.13-38+deb7u10. How to fix ↓
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Background
The GNU C Library, eglibc, is a key component of the Debian 7 operating system. It provides essential functionality for programs written in the C programming language. This vulnerability affects version 2.13-38+deb7u10 of the eglibc package.
Vulnerability Detail
The eglibc package is affected by multiple vulnerabilities:
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CVE-2014-8121: The nss_files database does not correctly implement enumeration interleaved with name-based or ID-based lookups, leading to a denial of service.
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CVE-2015-1781: The _r variants of host name resolution functions suffer from a buffer overflow if a misaligned buffer is supplied, potentially allowing arbitrary code execution.
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CVE-2015-7547: The getaddrinfo function, used for host name resolution, can mismanage internal buffers, leading to a stack-based buffer overflow and arbitrary code execution. This vulnerability affects most applications using getaddrinfo.
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CVE-2015-8776: Passing an invalid separated time value to strftime can cause the function to crash or leak information.
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CVE-2015-8777: The LD_POINTER_GUARD environment variable is not ignored for SUID programs, enabling an unintended bypass of a security feature.
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CVE-2015-8778: The hcreate and hcreate_r functions do not check the size argument properly, leading to a crash for certain arguments.
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CVE-2015-8779: The catopen function contains unbound stack allocations, causing a process crash.
Additionally, there are several other vulnerabilities that lack CVE assignment.
How To Fix
Minimum fixed version
2.13-38+deb7u10
This is the first release that contains the fix.
sudo apt-get install --only-upgrade eglibcTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
No specific workarounds have been mentioned for these vulnerabilities.
Conclusion
The eglibc package in Debian 7 is affected by multiple vulnerabilities that can have serious consequences. It is crucial to upgrade to the latest version and reboot the machines to ensure the security of the system. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for eglibc →
FAQ
eglibc is the GNU C Library, a key component of the Debian 7 operating system that provides essential functionality for programs written in the C programming language.
These vulnerabilities can lead to denial of service, arbitrary code execution, information leakage, and bypass of security features.
Most applications that perform host name resolution using getaddrinfo are affected by the CVE-2015-7547 vulnerability. No specific information is available for the impact on other applications.
No specific workarounds have been mentioned for these vulnerabilities.
To fix these vulnerabilities, it is recommended to upgrade to version 2.13-38+deb7u10 of the eglibc package and reboot the machines after applying the security upgrade.
Related vulnerabilities
Recent vulnerabilities recorded for eglibc.
