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Caldera International, Inc. Security Advisory
Subject: Linux - Format String Problem in Cyrus-SASL
Advisory number: CSSA-2001-040.0
Issue date: 2001, November 26
Cross reference:
______________________________________________________________________________
1. Problem Description
There is a format string bug in the Cyrus SASL library, and the
library is used by sendmail. We are not sure whether this
vulnerability can be exploited remotely just by connecting to
sendmail, but if it is, the attacker would gain root access.
We therefore urge our customers to upgrade this package immediately.
2. Vulnerable Versions
System Package
-----------------------------------------------------------
OpenLinux 2.3 not vulnerable
OpenLinux eServer 2.3.1 not vulnerable
and OpenLinux eBuilder
OpenLinux eDesktop 2.4 not vulnerable
OpenLinux Server 3.1 All packages previous to
libsasl-1.5.24-4
OpenLinux Workstation 3.1 All packages previous to
libsasl-1.5.24-4
3. Solution
Workaround
none
The proper solution is to upgrade to the latest packages.
4. OpenLinux 2.3
not vulnerable
5. OpenLinux eServer 2.3.1 and OpenLinux eBuilder for ECential 3.0
not vulnerable
6. OpenLinux eDesktop 2.4
not vulnerable
7. OpenLinux 3.1 Server
7.1 Location of Fixed Packages
The upgrade packages can be found on Caldera's FTP site at:
ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1/Server/current/RPMS
The corresponding source code package can be found at:
ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1/Server/current/SRPMS
7.2 Verification
67e101e2ff0a259e57bbcc9eee616a1f RPMS/libsasl-1.5.24-4.i386.rpm
9a971615138f2f2697dd8d0bdc8a9a83 RPMS/libsasl-devel-1.5.24-4.i386.rpm
a07d72f78e59effc80012a686eca4351 SRPMS/libsasl-1.5.24-4.src.rpm
7.3 Installing Fixed Packages
Upgrade the affected packages with the following commands:
rpm -Fvh libsasl-1.5.24-4.i386.rpm \
libsasl-devel-1.5.24-4.i386.rpm
Do not forget to restart sendmail by using:
/etc/rc.d/init.d/mta status && /etc/rc.d/init.d/mta restart
8. OpenLinux 3.1 Workstation
8.1 Location of Fixed Packages
The upgrade packages can be found on Caldera's FTP site at:
ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1/Workstation/current/RPMS
The corresponding source code package can be found at:
ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1/Workstation/current/SRPMS
8.2 Verification
67e101e2ff0a259e57bbcc9eee616a1f RPMS/libsasl-1.5.24-4.i386.rpm
9a971615138f2f2697dd8d0bdc8a9a83 RPMS/libsasl-devel-1.5.24-4.i386.rpm
a07d72f78e59effc80012a686eca4351 SRPMS/libsasl-1.5.24-4.src.rpm
8.3 Installing Fixed Packages
Upgrade the affected packages with the following commands:
rpm -Fvh libsasl-1.5.24-4.i386.rpm \
libsasl-devel-1.5.24-4.i386.rpm
Do not forget to restart sendmail by using:
/etc/rc.d/init.d/mta status && /etc/rc.d/init.d/mta restart
9. References
This and other Caldera security resources are located at:
http://www.caldera.com/support/security/index.html
This security fix closes Caldera's internal Problem Report 11066.
10. Disclaimer
Caldera International, Inc. is not responsible for the misuse of
any of the information we provide on this website and/or through our
security advisories. Our advisories are a service to our customers
intended to promote secure installation and use of Caldera OpenLinux.
11. Acknowledgements
Caldera International wishes to thank Kari Hurtta
<hurtta+zzat_private> for reporting this problem, and the security
people at SuSE for the fix.
______________________________________________________________________________
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This archive was generated by hypermail 2b30 : Wed Nov 28 2001 - 12:40:22 PST