A flaw was found in libcaca. A buffer overflow of export.c in function export_troff might lead to memory corruption and other potential consequences.

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4257 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-4257-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                    Thorsten Alteholz     July 28, 2025                                 https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : libcaca     Version        : 0.99.beta19-2.2+deb11u1     CVE ID         : CVE-2021-30498 CVE-2021-30499


    Two issues have been found in libcaca, a colour ASCII art library.
    Both are related to heap buffer overflow, which might lead to memory     corruption.



    For Debian 11 bullseye, these problems have been fixed in version     0.99.beta19-2.2+deb11u1.

    We recommend that you upgrade your libcaca packages.

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

    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

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

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

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.

The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3784 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-3784-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                    Thorsten Alteholz     April 07, 2024                                https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : libcaca     Version        : 0.99.beta19-2.1+deb10u1     CVE ID         : CVE-2021-30498 CVE-2021-30499


    Two issues have been found in libcaca, a colour ASCII art library.
    Both are related to heap buffer overflow, which might lead to memory     corruption.



    For Debian 10 buster, these problems have been fixed in version     0.99.beta19-2.1+deb10u1.

    We recommend that you upgrade your libcaca packages.

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

    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

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

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

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

  - A flaw was found in libcaca v0.99.beta19. A buffer overflow issue in caca_resize function in
    libcaca/caca/canvas.c may lead to local execution of arbitrary code in the user context. (CVE-2021-3410)

  - A flaw was found in libcaca. A heap buffer overflow in export.c in function export_tga might lead to
    memory corruption and other potential consequences. (CVE-2021-30498)

  - A flaw was found in libcaca. A buffer overflow of export.c in function export_troff might lead to memory
    corruption and other potential consequences. (CVE-2021-30499)

The remote SUSE Linux SLES11 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:14909-1 advisory.

  - A flaw was found in libcaca. A heap buffer overflow in export.c in function export_tga might lead to     memory corruption and other potential consequences. (CVE-2021-30498)

  - A flaw was found in libcaca. A buffer overflow of export.c in function export_troff might lead to memory     corruption and other potential consequences. (CVE-2021-30499)

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

The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:0820-1 advisory.

    - CVE-2021-30498, CVE-2021-30499: If an image has a size of 0x0, when exporting, no       data is written and space is allocated for the header only, not taking into       account that sprintf appends a NUL byte (bsc#1184751, bsc#1184752).

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

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

The remote SUSE Linux SUSE15 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2022:0769-1 advisory.

  - A flaw was found in libcaca. A heap buffer overflow in export.c in function export_tga might lead to     memory corruption and other potential consequences. (CVE-2021-30498)

  - A flaw was found in libcaca. A buffer overflow of export.c in function export_troff might lead to memory     corruption and other potential consequences. (CVE-2021-30499)

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

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:0769-1 advisory.

    - CVE-2021-30498, CVE-2021-30499: If an image has a size of 0x0, when exporting, no       data is written and space is allocated for the header only, not taking into       account that sprintf appends a NUL byte (bsc#1184751, bsc#1184752).

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

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

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:0754-1 advisory.

    - CVE-2021-30499: Fixed a memory corruption issue when exporting troff sources (bsc#1184751).
    - CVE-2021-30498: Fixed a memory corruption issue when exporting TGA images (bsc#1184752).
    - CVE-2021-3410: Fixed an illegal WRITE memory access (bsc#1182731).

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

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

The remote Ubuntu 16.04 ESM / 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5119-1 advisory.

    It was discovered that libcaca incorrectly handled certain images. An attacker could possibly use this     issue to cause a crash. (CVE-2021-30498, CVE-2021-30499)

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	Severity
242883	Debian dla-4257 : caca-utils - security update	Nessus	Debian Local Security Checks	high
215135	FreeBSD : libcaca -- Multiple vulnerabilities (c10b639c-e51c-11ef-9e76-4ccc6adda413)	Nessus	FreeBSD Local Security Checks	high
193480	Debian dla-3784 : caca-utils - security update	Nessus	Debian Local Security Checks	high
405138	Alpine: multiple libcaca packages, multiple py3-libcaca packages: security update to 0.99_beta20-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	high
405138	Alpine: multiple libcaca packages, multiple py3-libcaca packages: security update to 0.99_beta20-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	high
409774	Alpine: multiple libcaca packages: security update to 0.99-r4 (deprecated)	Tenable Cloud Security	Alpine Linux Local Security Checks	high
409774	Alpine: multiple libcaca packages: security update to 0.99-r4 (deprecated)	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	high
159021	SUSE SLES11 Security Update : libcaca (SUSE-SU-2022:14909-1)	Nessus	SuSE Local Security Checks	high
158926	SUSE SLES12 Security Update : libcaca (SUSE-SU-2022:0820-1)	Nessus	SuSE Local Security Checks	high
158776	openSUSE 15 Security Update : libcaca (openSUSE-SU-2022:0769-1)	Nessus	SuSE Local Security Checks	high
158765	SUSE SLED15 / SLES15 Security Update : libcaca (SUSE-SU-2022:0769-1)	Nessus	SuSE Local Security Checks	high
158750	SUSE SLES15 Security Update : libcaca (SUSE-SU-2022:0754-1)	Nessus	SuSE Local Security Checks	high
154328	Ubuntu 16.04 ESM / 18.04 LTS / 20.04 LTS : libcaca vulnerabilities (USN-5119-1)	Nessus	Ubuntu Local Security Checks	high

Detections

Analytics

CVE-2021-30499

high

Tenable Plugins

high

high

high

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high

high

high

high

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