There is a stack-based buffer overflow in the parse_makernote function of dcraw_common.cpp in LibRaw 0.19.1. Crafted input will lead to a denial of service or possibly unspecified other impact.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - There is a stack-based buffer overflow in the parse_makernote function of dcraw_common.cpp in LibRaw     0.19.1. Crafted input will lead to a denial of service or possibly unspecified other impact.
    (CVE-2018-20337)

Note that Nessus relies on the presence of the package as reported by the vendor.

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2022:0108 advisory.

    Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:

    CVE-2018-20337:
    There is a stack-based buffer overflow in the parse_makernote function of dcraw_common.cpp in LibRaw     0.19.1. Crafted input will lead to a denial of service or possibly unspecified other impact.

    CVE-2019-3825:
    A vulnerability was discovered in gdm before 3.31.4. When timed login is enabled in configuration, an     attacker could bypass the lock screen by selecting the timed login user and waiting for the timer to     expire, at which time they would gain access to the logged-in user's session.

    CVE-2019-3827:
    An incorrect permission check in the admin backend in gvfs before version 1.39.4 was found that allows     reading and modify arbitrary files by privileged users without asking for password when no authentication     agent is running. This vulnerability can be exploited by malicious programs running under privileges of     users belonging to the wheel group to further escalate its privileges by modifying system files without     user's knowledge. Successful exploitation requires uncommon system configuration.

    CVE-2019-12447:
    An issue was discovered in GNOME gvfs 1.29.4 through 1.41.2. daemon/gvfsbackendadmin.c mishandles file     ownership because setfsuid is not used.

    CVE-2019-12448:
    An issue was discovered in GNOME gvfs 1.29.4 through 1.41.2. daemon/gvfsbackendadmin.c has race conditions     because the admin backend doesn't implement query_info_on_read/write.

    CVE-2019-12449:
    An issue was discovered in GNOME gvfs 1.29.4 through 1.41.2. daemon/gvfsbackendadmin.c mishandles a file's     user and group ownership during move (and copy with G_FILE_COPY_ALL_METADATA) operations from admin:// to     file:// URIs, because root privileges are unavailable.

    CVE-2019-12795:
    daemon/gvfsdaemon.c in gvfsd from GNOME gvfs before 1.38.3, 1.40.x before 1.40.2, and 1.41.x before 1.41.3     opened a private D-Bus server socket without configuring an authorization rule. A local attacker could     connect to this server socket and issue D-Bus method calls.(Note that the server socket only accepts a     single connection, so the attacker would have to discover the server and connect to the socket before its     owner does.)

    CVE-2019-15690:
    ** RESERVED ** This candidate has been reserved by an organization or individual that will use it when     announcing a new security problem. When the candidate has been publicized, the details for this candidate     will be provided.

    CVE-2019-20839:
    libvncclient/sockets.c in LibVNCServer before 0.9.13 has a buffer overflow via a long socket filename.

    CVE-2020-14397:
    An issue was discovered in LibVNCServer before 0.9.13. libvncserver/rfbregion.c has a NULL pointer     dereference.

    CVE-2020-14405:
    An issue was discovered in LibVNCServer before 0.9.13. libvncclient/rfbproto.c does not limit TextChat     size.

    CVE-2020-15503:
    LibRaw before 0.20-RC1 lacks a thumbnail size range check. This affects decoders/unpack_thumb.cpp,     postprocessing/mem_image.cpp, and utils/thumb_utils.cpp. For example,     malloc(sizeof(libraw_processed_image_t)+T.tlength) occurs without validating T.tlength.

    CVE-2020-25708:
    A divide by zero issue was found to occur in libvncserver-0.9.12. A malicious client could use this flaw     to send a specially crafted message that, when processed by the VNC server, would lead to a floating point     exception, resulting in a denial of service.

Tenable has extracted the preceding description block directly from the Tencent Linux 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 Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALINUX3-SA-2022:0108 advisory.

    Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities:

    CVE-2018-20337:
    There is a stack-based buffer overflow in the parse_makernote function of dcraw_common.cpp in LibRaw     0.19.1. Crafted input will lead to a denial of service or possibly unspecified other impact.

    CVE-2019-3825:
    A vulnerability was discovered in gdm before 3.31.4. When timed login is enabled in configuration, an     attacker could bypass the lock screen by selecting the timed login user and waiting for the timer to     expire, at which time they would gain access to the logged-in user's session.

    CVE-2019-3827:
    An incorrect permission check in the admin backend in gvfs before version 1.39.4 was found that allows     reading and modify arbitrary files by privileged users without asking for password when no authentication     agent is running. This vulnerability can be exploited by malicious programs running under privileges of     users belonging to the wheel group to further escalate its privileges by modifying system files without     user's knowledge. Successful exploitation requires uncommon system configuration.

    CVE-2019-12447:
    An issue was discovered in GNOME gvfs 1.29.4 through 1.41.2. daemon/gvfsbackendadmin.c mishandles file     ownership because setfsuid is not used.

    CVE-2019-12448:
    An issue was discovered in GNOME gvfs 1.29.4 through 1.41.2. daemon/gvfsbackendadmin.c has race conditions     because the admin backend doesn't implement query_info_on_read/write.

    CVE-2019-12449:
    An issue was discovered in GNOME gvfs 1.29.4 through 1.41.2. daemon/gvfsbackendadmin.c mishandles a file's     user and group ownership during move (and copy with G_FILE_COPY_ALL_METADATA) operations from admin:// to     file:// URIs, because root privileges are unavailable.

    CVE-2019-12795:
    daemon/gvfsdaemon.c in gvfsd from GNOME gvfs before 1.38.3, 1.40.x before 1.40.2, and 1.41.x before 1.41.3     opened a private D-Bus server socket without configuring an authorization rule. A local attacker could     connect to this server socket and issue D-Bus method calls.(Note that the server socket only accepts a     single connection, so the attacker would have to discover the server and connect to the socket before its     owner does.)

    CVE-2019-15690:
    ** RESERVED ** This candidate has been reserved by an organization or individual that will use it when     announcing a new security problem. When the candidate has been publicized, the details for this candidate     will be provided.

    CVE-2019-20839:
    libvncclient/sockets.c in LibVNCServer before 0.9.13 has a buffer overflow via a long socket filename.

    CVE-2020-14397:
    An issue was discovered in LibVNCServer before 0.9.13. libvncserver/rfbregion.c has a NULL pointer     dereference.

    CVE-2020-14405:
    An issue was discovered in LibVNCServer before 0.9.13. libvncclient/rfbproto.c does not limit TextChat     size.

    CVE-2020-15503:
    LibRaw before 0.20-RC1 lacks a thumbnail size range check. This affects decoders/unpack_thumb.cpp,     postprocessing/mem_image.cpp, and utils/thumb_utils.cpp. For example,     malloc(sizeof(libraw_processed_image_t)+T.tlength) occurs without validating T.tlength.

    CVE-2020-25708:
    A divide by zero issue was found to occur in libvncserver-0.9.12. A malicious client could use this flaw     to send a specially crafted message that, when processed by the VNC server, would lead to a floating point     exception, resulting in a denial of service.

Tenable has extracted the preceding description block directly from the Alibaba Cloud Linux 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 Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2020:1766 advisory.

  - There is a stack-based buffer overflow in the parse_makernote function of dcraw_common.cpp in LibRaw     0.19.1. Crafted input will lead to a denial of service or possibly unspecified other impact.
    (CVE-2018-20337)

  - An issue was discovered in GNOME gvfs 1.29.4 through 1.41.2. daemon/gvfsbackendadmin.c mishandles file     ownership because setfsuid is not used. (CVE-2019-12447)

  - An issue was discovered in GNOME gvfs 1.29.4 through 1.41.2. daemon/gvfsbackendadmin.c has race conditions     because the admin backend doesn't implement query_info_on_read/write. (CVE-2019-12448)

  - An issue was discovered in GNOME gvfs 1.29.4 through 1.41.2. daemon/gvfsbackendadmin.c mishandles a file's     user and group ownership during move (and copy with G_FILE_COPY_ALL_METADATA) operations from admin:// to     file:// URIs, because root privileges are unavailable. (CVE-2019-12449)

  - A vulnerability was discovered in gdm before 3.31.4. When timed login is enabled in configuration, an     attacker could bypass the lock screen by selecting the timed login user and waiting for the timer to     expire, at which time they would gain access to the logged-in user's session. (CVE-2019-3825)

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

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2020:1766 advisory.

  - There is a stack-based buffer overflow in the parse_makernote function of dcraw_common.cpp in LibRaw     0.19.1. Crafted input will lead to a denial of service or possibly unspecified other impact.
    (CVE-2018-20337)

  - A vulnerability was discovered in gdm before 3.31.4. When timed login is enabled in configuration, an     attacker could bypass the lock screen by selecting the timed login user and waiting for the timer to     expire, at which time they would gain access to the logged-in user's session. (CVE-2019-3825)

  - An issue was discovered in GNOME gvfs 1.29.4 through 1.41.2. daemon/gvfsbackendadmin.c mishandles file     ownership because setfsuid is not used. (CVE-2019-12447)

  - An issue was discovered in GNOME gvfs 1.29.4 through 1.41.2. daemon/gvfsbackendadmin.c has race conditions     because the admin backend doesn't implement query_info_on_read/write. (CVE-2019-12448)

  - An issue was discovered in GNOME gvfs 1.29.4 through 1.41.2. daemon/gvfsbackendadmin.c mishandles a file's     user and group ownership during move (and copy with G_FILE_COPY_ALL_METADATA) operations from admin:// to     file:// URIs, because root privileges are unavailable. (CVE-2019-12449)

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

The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2020:1766 advisory.

  - LibRaw: stack-based buffer overflow in the parse_makernote function of dcraw_common.cpp (CVE-2018-20337)

  - gvfs: mishandling of file ownership in daemon/gvfsbackendadmin.c (CVE-2019-12447)

  - gvfs: race condition in daemon/gvfsbackendadmin.c due to admin backend not implementing     query_info_on_read/write (CVE-2019-12448)

  - gvfs: mishandling of file's user and group ownership in daemon/gvfsbackendadmin.c due to unavailability of     root privileges (CVE-2019-12449)

  - gdm: lock screen bypass when timed login is enabled (CVE-2019-3825)

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

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2020-1766 advisory.

    - Fix CVE-2019-15690 (an integer overflow in HandleCursorShape() in a client)       (bug #1814343)

Tenable has extracted the preceding description block directly from the Oracle Linux 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 Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:1766 advisory.

    GNOME is the default desktop environment of Red Hat Enterprise Linux.

    Security Fix(es):

    * LibRaw: stack-based buffer overflow in the parse_makernote function of dcraw_common.cpp (CVE-2018-20337)

    * gdm: lock screen bypass when timed login is enabled (CVE-2019-3825)

    * gvfs: mishandling of file ownership in daemon/gvfsbackendadmin.c (CVE-2019-12447)

    * gvfs: race condition in daemon/gvfsbackendadmin.c due to admin backend not implementing     query_info_on_read/write (CVE-2019-12448)

    * gvfs: mishandling of file's user and group ownership in daemon/gvfsbackendadmin.c due to unavailability     of root privileges (CVE-2019-12449)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.2 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 LTS / 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3989-1 advisory.

    It was discovered that LibRaw incorrectly handled photo files. If a user or automated system were tricked     into processing a specially crafted photo file, a remote attacker could cause applications linked against     LibRaw to crash, resulting in a denial of service, or possibly execute arbitrary code.

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.

This update for libraw fixes the following issues :

Security issues fixed :

  - CVE-2018-20337: Fixed a stack-based buffer overflow in     the parse_makernote function of dcraw_common.cpp     (bsc#1120519)

  - CVE-2018-20365: Fixed a heap-based buffer overflow in     the raw2image function of libraw_cxx.cpp (bsc#1120500)

  - CVE-2018-20364: Fixed a NULL pointer dereference in the     copy_bayer function of libraw_cxx.cpp (bsc#1120499)

  - CVE-2018-20363: Fixed a NULL pointer dereference in the     raw2image function of libraw_cxx.cpp (bsc#1120498) 

  - CVE-2018-5817: Fixed an infinite loop in the     unpacked_load_raw function of dcraw_common.cpp     (bsc#1120515)

  - CVE-2018-5818: Fixed an infinite loop in the     parse_rollei function of dcraw_common.cpp (bsc#1120516) 

  - CVE-2018-5819: Fixed a denial of service in the     parse_sinar_ia function of dcraw_common.cpp     (bsc#1120517)

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

This update for libraw fixes the following issues :

Security issues fixed :

CVE-2018-20337: Fixed a stack-based buffer overflow in the parse_makernote function of dcraw_common.cpp (bsc#1120519)

CVE-2018-20365: Fixed a heap-based buffer overflow in the raw2image function of libraw_cxx.cpp (bsc#1120500)

CVE-2018-20364: Fixed a NULL pointer dereference in the copy_bayer function of libraw_cxx.cpp (bsc#1120499)

CVE-2018-20363: Fixed a NULL pointer dereference in the raw2image function of libraw_cxx.cpp (bsc#1120498)

CVE-2018-5817: Fixed an infinite loop in the unpacked_load_raw function of dcraw_common.cpp (bsc#1120515)

CVE-2018-5818: Fixed an infinite loop in the parse_rollei function of dcraw_common.cpp (bsc#1120516)

CVE-2018-5819: Fixed a denial of service in the parse_sinar_ia function of dcraw_common.cpp (bsc#1120517)

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.

Fixes for CVE-2018-20337, CVE-2018-20363, CVE-2018-20364, CVE-2018-20365

https://www.libraw.org/news/libraw-0-19-2-release

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

ID	Name	Product	Family	Severity
259186	Linux Distros Unpatched Vulnerability : CVE-2018-20337	Nessus	Misc.	high
239637	TencentOS Server 3: GNOME (TSSA-2022:0108)	Nessus	Tencent Local Security Checks	high
236504	Alibaba Cloud Linux 3 : 0108: GNOME (ALINUX3-SA-2022:0108)	Nessus	Alibaba Cloud Linux Local Security Checks	high
184678	Rocky Linux 8 : GNOME (RLSA-2020:1766)	Nessus	Rocky Linux Local Security Checks	high
157605	AlmaLinux 8 : GNOME (ALSA-2020:1766)	Nessus	Alma Linux Local Security Checks	high
145863	CentOS 8 : GNOME (CESA-2020:1766)	Nessus	CentOS Local Security Checks	high
140034	Oracle Linux 8 : GNOME (ELSA-2020-1766)	Nessus	Oracle Linux Local Security Checks	high
136113	RHEL 8 : GNOME (RHSA-2020:1766)	Nessus	Red Hat Local Security Checks	high
125337	Ubuntu 16.04 LTS / 18.04 LTS : LibRaw vulnerabilities (USN-3989-1)	Nessus	Ubuntu Local Security Checks	high
121461	openSUSE Security Update : libraw (openSUSE-2019-94)	Nessus	SuSE Local Security Checks	high
121301	SUSE SLED15 / SLES15 Security Update : libraw (SUSE-SU-2019:0133-1)	Nessus	SuSE Local Security Checks	high
120569	Fedora 29 : LibRaw (2018-801432b551)	Nessus	Fedora Local Security Checks	high

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CVE-2018-20337

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