Linux Security
Linux Security
Linux Security

Debian LTS: DLA-2553-2: xcftools regression update

Date 08 Mar 2021
220
Posted By LinuxSecurity Advisories
The patch to address CVE-2019-5086 and CVE-2019-5087 was not portable and did not work on 32 bit processor architectures. This update fixes the problem. For reference, the original advisory text follows.
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Debian LTS Advisory DLA-2553-2                This email address is being protected from spambots. You need JavaScript enabled to view it.
https://www.debian.org/lts/security/                      Markus Koschany
March 08, 2021                                https://wiki.debian.org/LTS
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Package        : xcftools
Version        : 1.0.7-6+deb9u2
CVE ID         : CVE-2019-5086 CVE-2019-5087
Debian Bug     : 945317

The patch to address CVE-2019-5086 and CVE-2019-5087 was not portable and did
not work on 32 bit processor architectures. This update fixes the problem. For
reference, the original advisory text follows.

Claudio Bozzato of Cisco Talos discovered an exploitable integer overflow
vulnerability in the flattenIncrementally function in the xcf2png and xcf2pnm
binaries of xcftools. An integer overflow can occur while walking through tiles
that could be exploited to corrupt memory and execute arbitrary code. In order
to trigger this vulnerability, a victim would need to open a specially crafted
XCF file.

For Debian 9 stretch, this problem has been fixed in version
1.0.7-6+deb9u2.

We recommend that you upgrade your xcftools packages.

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

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

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