Description
Multiple buffer overflows in Cyrus SASL library 2.1.9 and earlier allow remote attackers to cause a denial of service and possibly execute arbitrary code via (1) long inputs during user name canonicalization, (2) characters that need to be escaped during LDAP authentication using saslauthd, or (3) an off-by-one error in the log writer, which does not allocate space for the null character that terminates a string.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | cyrus-sasl2 | 2.1.10-1 | — |
| Debian 13 | cyrus-sasl2 | 2.1.10-1 | — |
| Debian 12 | cyrus-sasl2 | 2.1.10-1 | — |
References
- cyrus-sasl-logwriter-bo(10812) vdb-entry
- SuSE-SA:2002:048 vendor-advisory
- 000557 vendor-advisory
- 6349 vdb-entry
- 20021209 Cyrus SASL library buffer overflows mailing-list
- DSA-215 vendor-advisory
- cyrus-sasl-saslauthd-bo(10811) vdb-entry
- 6348 vdb-entry
- APPLE-SA-2005-03-21 vendor-advisory
- 6347 vdb-entry
- 200212-10 vendor-advisory
- cyrus-sasl-username-bo(10810) vdb-entry
- RHSA-2002:283 vendor-advisory