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CVE-2005-4784

5.6 · MEDIUM

Multiple buffer overflows in the POSIX readdir_r function, as used in multiple packages, allow local users to cause a denial of service and possibly execute arbitrary code via (1) a symlink attack…

Published Dec 31, 2005austin_groupEPSS 0.44%

Overview

CVE-2005-4784 is a medium-severity vulnerability affecting austin_group posix. It was published on December 31, 2005 and has a CVSS 2.0 base score of 5.6 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.6, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

Multiple buffer overflows in the POSIX readdir_r function, as used in multiple packages, allow local users to cause a denial of service and possibly execute arbitrary code via (1) a symlink attack that exploits a race condition between opendir and pathcon calls and changes the filesystem to one with a larger maximum directory-entry name length, or (2) possibly via programmer-introduced errors on operating systems with a small struct dirent, such as Solaris or BeOS, as demonstrated in packages including (a) gcj, (b) KDE, (c) libwww, (d) the Rudiments library, (e) teTeX, (f) xmail, (g) bfbtester, (h) ncftp, (i) netwib, (j) OpenOffice.org, (k) Pike, (l) reprepro, (m) Tcl, and (n) xgsmlib.

Remediation

Check the references section for vendor advisories and patches from austin_group. Update posix to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refwomble.decadentplace.org.uk/readdir_r-advisory.htmlRefwww.securityfocus.com/archive/1/415781Refwww.securityfocus.com/archive/1/415790/30/0/threadedRefwww.securityfocus.com/archive/1/415995/30/0/threadedRefwww.securityfocus.com/archive/1/415998/30/0/threadedRefwww.securityfocus.com/archive/1/415999/30/0/threadedRefwww.securityfocus.com/archive/1/416002/30/0/threadedRefwww.securityfocus.com/archive/1/416048/30/0/threadedRefwww.securityfocus.com/bid/15259Refwomble.decadentplace.org.uk/readdir_r-advisory.html

How CyberStrike helps

Frequently asked questions

What is CVE-2005-4784?

CVE-2005-4784 is a medium-severity vulnerability affecting austin_group posix. It was published on December 31, 2005 and has a CVSS 2.0 base score of 5.6 (MEDIUM).

How severe is CVE-2005-4784?

This vulnerability has a CVSS 2.0 base score of 5.6, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2005-4784?

Check the references section for vendor advisories and patches from austin_group. Update posix to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2005-4784?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2005-4784 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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