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Debian Security Advisory DSA-4591-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
December 20, 2019 https://www.debian.org/security/faq
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Package : cyrus-sasl2
CVE ID : CVE-2019-19906
Debian Bug : 947043

Stephan Zeisberg reported an out-of-bounds write vulnerability in the
_sasl_add_string() function in cyrus-sasl2, a library implementing the
Simple Authentication and Security Layer. A remote attacker can take
advantage of this issue to cause denial-of-service conditions for
applications using the library.

For the oldstable distribution (stretch), this problem has been fixed
in version 2.1.27~101-g0780600+dfsg-3+deb9u1.

For the stable distribution (buster), this problem has been fixed in
version 2.1.27+dfsg-1+deb10u1.

We recommend that you upgrade your cyrus-sasl2 packages.

For the detailed security status of cyrus-sasl2 please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/cyrus-sasl2

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
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