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Debian Security Advisory DSA-4530-1                   security@debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
September 22, 2019                    https://www.debian.org/security/faq
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Package        : expat
CVE ID         : CVE-2019-15903
Debian Bug     : 939394

It was discovered that Expat, an XML parsing C library, did not properly
handled internal entities closing the doctype, potentially resulting in
denial of service or information disclosure if a malformed XML file is
processed.

For the oldstable distribution (stretch), this problem has been fixed
in version 2.2.0-2+deb9u3.

For the stable distribution (buster), this problem has been fixed in
version 2.2.6-2+deb10u1.

We recommend that you upgrade your expat packages.

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

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