There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

  - There is an illegal WRITE memory access at caca/file.c (function caca_file_read) in libcaca 0.99.beta19.
    (CVE-2018-20549)

  - There is floating point exception at caca/dither.c (function caca_dither_bitmap) in libcaca 0.99.beta19.
    (CVE-2018-20544)

  - There is an illegal WRITE memory access at common-image.c (function load_image) in libcaca 0.99.beta19 for
    4bpp data. (CVE-2018-20545)

  - There is an illegal READ memory access at caca/dither.c (function get_rgba_default) in libcaca 0.99.beta19
    for the default bpp case. (CVE-2018-20546)

  - There is an illegal READ memory access at caca/dither.c (function get_rgba_default) in libcaca 0.99.beta19
    for 24bpp data. (CVE-2018-20547)

This update for libcaca fixes the following issues :

Security issues fixed :

CVE-2018-20544: Fixed a floating point exception at caca/dither.c (bsc#1120502)

CVE-2018-20545: Fixed a WRITE memory access in the load_image function at common-image.c for 4bpp (bsc#1120584)

CVE-2018-20546: Fixed a READ memory access in the get_rgba_default function at caca/dither.c for bpp (bsc#1120503)

CVE-2018-20547: Fixed a READ memory access in the get_rgba_default function at caca/dither.c for 24bpp (bsc#1120504)

CVE-2018-20548: Fixed a WRITE memory access in the load_image function at common-image.c for 1bpp (bsc#1120589)

CVE-2018-20549: Fixed a WRITE memory access in the caca_file_read function at caca/file.c (bsc#1120470)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the c10b639c-e51c-11ef-9e76-4ccc6adda413 advisory.

    Sam Hocevar reports:
    Multiple memory leaks and invalid memory accesses:

Tenable has extracted the preceding description block directly from the FreeBSD security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Several vulnerabilities were discovered in libcaca, a graphics library that outputs text: integer overflows, floating point exceptions or invalid memory reads may lead to a denial of service (application crash) if a malformed image file is processed.

For Debian 8 'Jessie', these problems have been fixed in version 0.99.beta19-2+deb8u1.

We recommend that you upgrade your libcaca packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for libcaca fixes the following issues :

Security issues fixed :

  - CVE-2018-20544: Fixed a floating point exception at     caca/dither.c (bsc#1120502)

  - CVE-2018-20545: Fixed a WRITE memory access in the     load_image function at common-image.c for 4bpp     (bsc#1120584)

  - CVE-2018-20546: Fixed a READ memory access in the     get_rgba_default function at caca/dither.c for bpp     (bsc#1120503)

  - CVE-2018-20547: Fixed a READ memory access in the     get_rgba_default function at caca/dither.c for 24bpp     (bsc#1120504)

  - CVE-2018-20548: Fixed a WRITE memory access in the     load_image function at common-image.c for 1bpp     (bsc#1120589)

  - CVE-2018-20549: Fixed a WRITE memory access in the     caca_file_read function at caca/file.c (bsc#1120470)

This update was imported from the SUSE:SLE-15:Update update project.

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3860-1 advisory.

    It was discovered that libcaca incorrectly handled certain images. An attacker could possibly use this     issue to cause a denial of service. (CVE-2018-20544)

    It was discovered that libcaca incorrectly handled certain images. An attacker could possibly use this     issue to execute arbitrary code. (CVE-2018-20545, CVE-2018-20548, CVE-2018-20459)

    It was discovered that libcaca incorrectly handled certain images. An attacker could possibly use this     issue to access sensitive information. (CVE-2018-20546, CVE-2018-20547)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Published	Updated	Severity
405137	Alpine: multiple libcaca packages, multiple py3-libcaca packages: security update to 0.99_beta19-r3	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	10/31/2023	7/2/2026	high
405137	Alpine: multiple libcaca packages, multiple py3-libcaca packages: security update to 0.99_beta19-r3	Tenable Cloud Security	Alpine Linux Local Security Checks	10/31/2023	7/2/2026	high
123446	SUSE SLED15 / SLES15 Security Update : libcaca (SUSE-SU-2019:0770-1)	Nessus	SuSE Local Security Checks	3/28/2019	6/7/2024	high
215135	FreeBSD : libcaca -- Multiple vulnerabilities (c10b639c-e51c-11ef-9e76-4ccc6adda413)	Nessus	FreeBSD Local Security Checks	2/7/2025	2/7/2025	high
130166	SUSE SLED12 / SLES12 Security Update : libcaca (SUSE-SU-2019:2745-1)	Nessus	SuSE Local Security Checks	10/23/2019	4/17/2024	high
130942	SUSE SLES12 Security Update : libcaca (SUSE-SU-2019:2745-2)	Nessus	SuSE Local Security Checks	11/13/2019	4/11/2024	high
121055	Debian DLA-1631-1 : libcaca security update	Nessus	Debian Local Security Checks	1/10/2019	6/27/2024	high
123774	openSUSE Security Update : libcaca (openSUSE-2019-1144)	Nessus	SuSE Local Security Checks	4/5/2019	6/5/2024	high
121212	Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : libcaca vulnerabilities (USN-3860-1)	Nessus	Ubuntu Local Security Checks	1/16/2019	8/27/2024	high

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