Squid Web Proxy Cache multiple FTP directory buffer overflows
| squid-ftp-dir-bo (9481) |  High Risk |
Description:
Squid is vulnerable to several buffer overflows, caused by improper parsing of FTP directory listings into HTML. These vulnerabilities could allow a remote attacker to overflow a buffer and execute arbitrary code on the system or cause the proxy server to crash.
Platforms Affected:
- Conectiva, Linux 6.0
- Conectiva, Linux 7.0
- Conectiva, Linux 8.0
- RedHat, Enterprise Linux 2.1 AS
- RedHat, Linux 6.2
- RedHat, Linux 7
- RedHat, Linux 7.1
- RedHat, Linux 7.2
- RedHat, Linux 7.3
- Squid-Cache, Squid 2.0
- Squid-Cache, Squid 2.1
- Squid-Cache, Squid 2.2
- Squid-Cache, Squid 2.2.STABLE5
- Squid-Cache, Squid 2.3
- Squid-Cache, Squid 2.3.STABLE2
- Squid-Cache, Squid 2.3.STABLE3
- Squid-Cache, Squid 2.3.STABLE4
- Squid-Cache, Squid 2.3.STABLE4-11
- Squid-Cache, Squid 2.3.STABLE5
- Squid-Cache, Squid 2.4
- Squid-Cache, Squid 2.4.DEVEL2
- Squid-Cache, Squid 2.4.DEVEL4
- Squid-Cache, Squid 2.4.PRE-STABLE
- Squid-Cache, Squid 2.4.PRE-STABLE2
- Squid-Cache, Squid 2.4.STABLE1
- Squid-Cache, Squid 2.4.STABLE2
- Squid-Cache, Squid 2.4.STABLE2-2
- Squid-Cache, Squid 2.4.STABLE2-3
- Squid-Cache, Squid 2.4.STABLE4
- Squid-Cache, Squid 2.4.STABLE6
Remedy:
Upgrade to the latest version of Squid Web Proxy Cache (2.4.STABLE7 or later), as listed in Squid Proxy Cache Security Update Advisory SQUID-2002:3. See References.
For Red Hat Linux:
Upgrade to the latest Squid package, as listed below. Refer to RHSA-2002:051-16 for more information. See References.
Red Hat 6.2: 2.4.STABLE6-6.6.2 or later
Red Hat 7.0: 2.4.STABLE6-6.7.0 or later
Red Hat 7.1: 2.4.STABLE6-6.7.1 or later
Red Hat 7.2 and 7.3: 2.4.STABLE6-6.7.3 or later
For Conectiva Linux:
Upgrade to the latest Squid packages, as listed below. Refer to Conectiva Linux Security Announcement CLA-2002:506 for more information. See References.
Conectiva 6.0: 2.4.7-1U60_3cl or later
Conectiva 7.0: 2.4.7-1U70_3cl or later
Conectiva 8.0: 2.4.7-1U8_3cl or later
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Gain Access
References:
- Conectiva Linux Announcement CLSA-2002:506, squid at http://distro.conectiva.com/atualizacoes/?id=a&anuncio=000506.
- Squid Proxy Cache Security Update Advisory SQUID-2002:3, Squid Proxy Cache Security Update Advisory at http://www.squid-cache.org/Advisories/SQUID-2002_3.txt.
- BID-5153: Multiple Squid Remote Code Execution Vulnerabilities
- BID-5155: Squid MSNT Auth Helper Buffer Overflow Vulnerability
- BID-5156: Squid FTP Directory Parsing Buffer Overflow Vulnerability
- BID-5157: Squid Gopher Proxy Buffer Overflow Vulnerability
- CVE-2002-0713: Buffer overflows in Squid before 2.4.STABLE6 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code (1) via the MSNT auth helper (msnt_auth) when using denyusers or allowusers files, (2) via the gopher client, or (3) via the FTP server directory listing parser when HTML output is generated.
- RHSA-2002-130: squid security update
Reported:
Jul 03, 2002
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