Vulnerability Details : CVE-2012-3501
The squidclamav_check_preview_handler function in squidclamav.c in SquidClamav 5.x before 5.8 and 6.x before 6.7 passes an unescaped URL to a system command call, which allows remote attackers to cause a denial of service (daemon crash) via a URL with certain characters, as demonstrated using %0D or %0A.
Vulnerability category: OverflowDenial of service
Exploit prediction scoring system (EPSS) score for CVE-2012-3501
Probability of exploitation activity in the next 30 days: 1.26%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 85 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2012-3501
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST |
CWE ids for CVE-2012-3501
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The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2012-3501
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https://github.com/darold/squidclamav/commit/80f74451f628264d1d9a1f1c0bbcebc932ba5e00
Add a workaround for a squidGuard bug that unescape the URL and send … · darold/squidclamav@80f7445 · GitHubExploit;Patch
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http://www.securityfocus.com/bid/54663
SquidClamav URL Parsing Denial of Service Vulnerability
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http://www.openwall.com/lists/oss-security/2012/08/16/4
oss-security - Re: CVE Request: SquidClamav insufficient escaping flaws
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https://bugs.gentoo.org/show_bug.cgi?id=428778
428778 – (CVE-2012-3501) <net-proxy/squidclamav-6.8 : URL Parsing Denial of Service Vulnerability (CVE-2012-3501)
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http://freecode.com/projects/squidclamav/releases/346722
All releases of SquidClamAv – Freecode
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http://www.openwall.com/lists/oss-security/2012/08/16/2
oss-security - CVE Request: SquidClamav insufficient escaping flaws
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http://squidclamav.darold.net/news.html
404 Not FoundVendor Advisory
Products affected by CVE-2012-3501
- cpe:2.3:a:darold:squidclamav:6.6:*:*:*:*:*:*:*
- cpe:2.3:a:darold:squidclamav:6.4:*:*:*:*:*:*:*
- cpe:2.3:a:darold:squidclamav:5.5:*:*:*:*:*:*:*
- cpe:2.3:a:darold:squidclamav:5.3:*:*:*:*:*:*:*
- cpe:2.3:a:darold:squidclamav:6.2:*:*:*:*:*:*:*
- cpe:2.3:a:darold:squidclamav:6.1:*:*:*:*:*:*:*
- cpe:2.3:a:darold:squidclamav:6.0:*:*:*:*:*:*:*
- cpe:2.3:a:darold:squidclamav:5.7:*:*:*:*:*:*:*
- cpe:2.3:a:darold:squidclamav:5.2:*:*:*:*:*:*:*
- cpe:2.3:a:darold:squidclamav:5.1:*:*:*:*:*:*:*
- cpe:2.3:a:darold:squidclamav:5.0:*:*:*:*:*:*:*
- cpe:2.3:a:darold:squidclamav:6.5:*:*:*:*:*:*:*
- cpe:2.3:a:darold:squidclamav:6.3:*:*:*:*:*:*:*
- cpe:2.3:a:darold:squidclamav:5.6:*:*:*:*:*:*:*
- cpe:2.3:a:darold:squidclamav:5.4:*:*:*:*:*:*:*