Cyrus-SASL SASL_PATH environment variable
| cyrus-sasl-saslpath (17643) |  High Risk |
Description:
Carnegie Mellon University's Cyrus-SASL library could allow a local attacker to supply a specially-crafted SASL_PATH environment variable and possibly execute arbitrary code on the system.
Platforms Affected:
- Carnegie Mellon University, Cyrus-SASL
- Conectiva, Linux 10
- Conectiva, Linux 9.0
- Debian, Debian Linux 3.0
- Gentoo, Linux
- MandrakeSoft, Mandrake Linux 10.0
- MandrakeSoft, Mandrake Linux 10.0 AMD64
- MandrakeSoft, Mandrake Linux 9.2 AMD64
- MandrakeSoft, Mandrake Linux 9.2
- MandrakeSoft, Mandrake Linux Corporate Server 2.1
- MandrakeSoft, Mandrake Linux Corporate Server 2.1 X86_64
- OpenPKG, OpenPKG 2.1
- OpenPKG, OpenPKG 2.2
- OpenPKG, OpenPKG CURRENT
- RedHat, Enterprise Linux 2.1 AW
- RedHat, Enterprise Linux 2.1 WS
- RedHat, Enterprise Linux 2.1 ES
- RedHat, Enterprise Linux 2.1 AS
- RedHat, Enterprise Linux 3 WS
- RedHat, Enterprise Linux 3 ES
- RedHat, Enterprise Linux 3 AS
- RedHat, Enterprise Linux 3 Desktop
- RedHat, Linux Advanced Workstation 2.1 Itanium
- SuSE, Linux Enterprise Server 9
- SuSE, SuSE Linux 8.1
- SuSE, SuSE Linux 9.1
- Trustix, Enterprise Server 2
- Trustix, Secure Linux 2.0
- Trustix, Secure Linux 2.1
Remedy:
For Gentoo Linux:
Upgrade to the latest version of Cyrus-SASL (2.1.18-r2 or later), as listed in GLSA 200410-05 / Cyrus-SASL. See References.
For Red Hat Linux:
Upgrade to the latest cyrus-sasl package, as listed below. Refer to RHSA-2004:546-18 for more information. See References.
Red Hat Enterprise Linux AS (v. 3), ES (v. 3), WS (v. 3), Desktop: 2.1.15-10 or later
Red Hat Enterprise Linux AS (v. 2.1), ES (v. 2.1), WS (v. 2.1), Advanced Workstation (v.2.1): 1.5.24-26 or later
For Mandrake Linux:
Upgrade to the latest cyrus-sasl package, as listed below. Refer to Mandrakesoft Security Advisory MDKSA-2004:106 for more information. See References.
Mandrake Linux 9.2: 2.1.15-4.1.92mdk or later
Mandrake Linux 10.0: 2.1.15-10.1.100mdk or later
Mandrake Linux Corporate Server 2.1: 1.5.27-5.1.C21mdk or later
For Trustix Secure Linux:
Upgrade to the latest cyrus-sasl package, as listed below. Refer to Trustix Secure Linux Security Advisory #2004-0053 for more information. See References.
Trustix Secure Linux 2.0: 2.1.15-5tr or later
Trustix Secure Linux 2.1 and Enterprise Linux 2: 2.1.15-8tr or later
For Debian GNU/Linux 3.0 (alias woody):
Upgrade to the latest cyrus-sasl package (1.5.27-3.1woody5 or later), as listed in DSA-563-3. See References.
For Debian GNU/Linux 3.0 (alias woody):
Upgrade to the latest cyrus-sasl-mit package (1.5.24-15woody3 or later), as listed in DSA-568-1. See References.
For Trustix Secure Linux:
Upgrade to the latest cyrus-sasl package, as listed in Trustix Secure Linux Security Advisory #2004-0054 for more information. See References.
For Conectiva Linux:
Upgrade to the latest sasl2 package, as listed below. Refer to Conectiva Linux Security Announcement CLSA-2004:889 for more information. See References.
Conectiva Linux 9: 2.1.12-23677U90_2cl or later
For OpenPKG:
Upgrade to the latest sasl package, as listed in OpenPKG Security Advisory OpenPKG-SA-2005.004. See References.
OpenPKG CURRENT: 2.2.11-20050214 or later
OpenPKG 2.2: 2.2.8-2.2.2 or later
OpenPKG 2.1: 2.1.18-2.1.1 or later
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Gain Privileges
References:
- CIAC Information Bulletin P-003, Updated Cyrus-SASL Packages Fix Security Flaw at http://www.ciac.org/ciac/bulletins/p-003.shtml.
- CIAC INFORMATION BULLETIN P-156, Apple Security Update 2005-003 at http://www.ciac.org/ciac/bulletins/p-156.shtml.
- Conectiva Linux Security Announcement CLSA-2004:889, Fix for buffer overflow vulnerability at http://distro.conectiva.com.br/atualizacoes/index.php?id=a&anuncio=000889.
- Trustix Secure Linux Security Advisory #2004-0053, Insecure handling of environment variable at http://www.trustix.net/errata/2004/0053/.
- Trustix Secure Linux Security Advisory #2004-0054, Multiple security vulnerabilities at http://www.trustix.net/errata/2004/0054/.
- BID-11347: Cyrus SASL Multiple Remote And Local Vulnerabilities
- CVE-2004-0884: The (1) libsasl and (2) libsasl2 libraries in Cyrus-SASL 2.1.18 and earlier trust the SASL_PATH environment variable to find all available SASL plug-ins, which allows local users to execute arbitrary code by modifying the SASL_PATH to point to malicious programs.
- DSA-563: cyrus-sasl -- unsanitised input
- DSA-568: cyrus-sasl-mit -- unsanitised input
- GLSA-200410-05: Cyrus-SASL: Buffer overflow and SASL_PATH vulnerabilities
- MDKSA-2004:106: Updated cyrus-sasl packages fix local vulnerability
- OpenPKG-SA-2005.004: SASL
- RHSA-2004-546: cyrus-sasl security update
- SUSE-SA:2004:037: kernel: remote denial of service
Reported:
Oct 07, 2004
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