CVE-2011-3631: Integer Overflow
First published: Sat Oct 15 2011(Updated: )
Hardlink before 0.1.2 has multiple integer overflows leading to heap-based buffer overflows because of the way string lengths concatenation is done in the calculation of the required memory space to be used. A remote attacker could provide a specially-crafted directory tree and trick the local user into consolidating it, leading to hardlink executable crash or potentially arbitrary code execution with user privileges.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/hardlink | 0.3.2 | |
| CentOS Hardlink | <0.1.2 | |
| Red Hat Enterprise Linux | =6.0 | |
| Debian | =8.0 | |
| Red Hat Enterprise Linux | =5.0 | |
| Debian | =9.0 | |
| Debian | =10.0 |
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2011-3631 https://nvd.nist.gov/vuln/detail/CVE-2011-3631
- https://bugzilla.redhat.com/show_bug.cgi?id=746710
- https://access.redhat.com/security/cve/cve-2011-3631
- http://www.openwall.com/lists/oss-security/2011/10/15/2
- https://bugs.gentoo.org/show_bug.cgi?id=387269
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=645516
- http://cvsweb.openwall.com/cgi/cvsweb.cgi/Owl/packages/hardlink/hardlink.c.diff?r1=1.2;r2=1.3
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=746715
- https://access.redhat.com/security/cve/CVE-2011-3631
- http://www.openwall.com/lists/oss-security/2011/10/20/6
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=645516
- https://security-tracker.debian.org/tracker/CVE-2011-3631
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-3631
Frequently Asked Questions
What is the severity of CVE-2011-3631?
CVE-2011-3631 has a severity rating that indicates it poses a risk of heap-based buffer overflows due to integer overflows.
How do I fix CVE-2011-3631?
To remediate CVE-2011-3631, upgrade hardlink to version 0.3.2 or later.
Which software is affected by CVE-2011-3631?
CVE-2011-3631 affects versions of hardlink before 0.1.2 across various Linux distributions including Debian and Red Hat Enterprise Linux.
Can CVE-2011-3631 be exploited remotely?
Yes, a remote attacker could exploit CVE-2011-3631 using a specially-crafted directory tree.
What types of vulnerabilities are exhibited in CVE-2011-3631?
CVE-2011-3631 showcases integer overflows leading to heap-based buffer overflows due to improper memory space calculations.
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