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

  - A stack exhaustion issue in the printIFDStructure function of Exiv2 0.27 allows remote attackers to cause     a denial of service (DOS) via a crafted file. (CVE-2020-18898)

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

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALINUX3-SA-2022:0215 advisory.

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

    CVE-2020-18898:
    A stack exhaustion issue in the printIFDStructure function of Exiv2 0.27 allows remote attackers to cause     a denial of service (DOS) via a crafted file.

    CVE-2021-29458:
    Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata     of image files. An out-of-bounds read was found in Exiv2 versions v0.27.3 and earlier. The out-of-bounds     read is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could     potentially exploit the vulnerability to cause a denial of service by crashing Exiv2, if they can trick     the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when writing     the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For example, to     trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such     as insert. The bug is fixed in version v0.27.4.

    CVE-2021-29463:
    Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata     of image files. An out-of-bounds read was found in Exiv2 versions v0.27.3 and earlier. The out-of-bounds     read is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could     potentially exploit the vulnerability to cause a denial of service by crashing Exiv2, if they can trick     the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when writing     the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For example, to     trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such     as `insert`. The bug is fixed in version v0.27.4.

    CVE-2021-29464:
    Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata     of image files. A heap buffer overflow was found in Exiv2 versions v0.27.3 and earlier. The heap overflow     is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially     exploit the vulnerability to gain code execution, if they can trick the victim into running Exiv2 on a     crafted image file. Note that this bug is only triggered when writing the metadata, which is a less     frequently used Exiv2 operation than reading the metadata. For example, to trigger the bug in the Exiv2     command-line application, you need to add an extra command-line argument such as `insert`. The bug is     fixed in version v0.27.4.

    CVE-2021-29470:
    Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata     of image files. An out-of-bounds read was found in Exiv2 versions v0.27.3 and earlier. The out-of-bounds     read is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could     potentially exploit the vulnerability to cause a denial of service by crashing Exiv2, if they can trick     the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when writing     the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For example, to     trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such     as insert. The bug is fixed in version v0.27.4.

    CVE-2021-29473:
    Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and     ICC image metadata. An out-of-bounds read was found in Exiv2 versions v0.27.3 and earlier. Exiv2 is a     command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image     files. The out-of-bounds read is triggered when Exiv2 is used to write metadata into a crafted image file.
    An attacker could potentially exploit the vulnerability to cause a denial of service by crashing Exiv2, if     they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered     when writing the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For     example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line     argument such as `insert`. The bug is fixed in version v0.27.4. Please see our security policy for     information about Exiv2 security.

    CVE-2021-29623:
    Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and     ICC image metadata. A read of uninitialized memory was found in Exiv2 versions v0.27.3 and earlier. Exiv2     is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of     image files. The read of uninitialized memory is triggered when Exiv2 is used to read the metadata of a     crafted image file. An attacker could potentially exploit the vulnerability to leak a few bytes of stack     memory, if they can trick the victim into running Exiv2 on a crafted image file. The bug is fixed in     version v0.27.4.

    CVE-2021-32617:
    Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata     of image files. An inefficient algorithm (quadratic complexity) was found in Exiv2 versions v0.27.3 and     earlier. The inefficient algorithm is triggered when Exiv2 is used to write metadata into a crafted image     file. An attacker could potentially exploit the vulnerability to cause a denial of service, if they can     trick the victim into running Exiv2 on a crafted image file. The bug is fixed in version v0.27.4. Note     that this bug is only triggered when _writing_ the metadata, which is a less frequently used Exiv2     operation than _reading_ the metadata. For example, to trigger the bug in the Exiv2 command-line     application, you need to add an extra command-line argument such as `rm`.

    CVE-2021-3482:
    A flaw was found in Exiv2 in versions before and including 0.27.4-RC1. Improper input validation of the     rawData.size property in Jp2Image::readMetadata() in jp2image.cpp can lead to a heap-based buffer overflow     via a crafted JPG image containing malicious EXIF data.

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 Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2022:1842 advisory.

    Exiv2 is a C++ library to access image metadata, supporting read and write access to the Exif, IPTC and     XMP metadata, Exif MakerNote support, extract and delete methods for Exif thumbnails, classes to access     Ifd, and support for various image formats.

    The following packages have been upgraded to a later upstream version: exiv2 (0.27.5). (BZ#2018422)

    Security Fix(es):

    * exiv2: stack exhaustion issue in the printIFDStructure function may lead to DoS (CVE-2020-18898)

    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 8.6 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 this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2022:1797 advisory.

    Exiv2 is a C++ library to access image metadata, supporting read and write access to the Exif, IPTC and     XMP metadata, Exif MakerNote support, extract and delete methods for Exif thumbnails, classes to access     Ifd, and support for various image formats.

    Security Fix(es):

    * exiv2: stack exhaustion issue in the printIFDStructure function may lead to DoS (CVE-2020-18898)

    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 8.6 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 this issue but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 8 host has a package installed that is affected by a vulnerability as referenced in the ALSA-2022:1797 advisory.

  - A stack exhaustion issue in the printIFDStructure function of Exiv2 0.27 allows remote attackers to cause     a denial of service (DOS) via a crafted file. (CVE-2020-18898)

Note that Nessus has not tested for this issue 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 a vulnerability as referenced in the RLSA-2022:1842 advisory.

  - A stack exhaustion issue in the printIFDStructure function of Exiv2 0.27 allows remote attackers to cause     a denial of service (DOS) via a crafted file. (CVE-2020-18898)

Note that Nessus has not tested for this issue 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 a vulnerability as referenced in the ALINUX3-SA-2022:0195 advisory.

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

    CVE-2020-18898:
    A stack exhaustion issue in the printIFDStructure function of Exiv2 0.27 allows remote attackers to cause     a denial of service (DOS) via a crafted file.

Tenable has extracted the preceding description block directly from the Alibaba Cloud Linux security advisory.

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 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:3598-1 advisory.

    - CVE-2021-37621: Fixed denial of service due to infinite loop in Image:printIFDStructure (bsc#1189333).
    - CVE-2021-37620: Fixed out-of-bounds read in XmpTextValue:read() (bsc#1189332).
    - CVE-2021-37619: Fixed out-of-bounds read in Exiv2:Jp2Image:encodeJp2Header (bsc#1189331).
    - CVE-2021-37618: Fixed out-of-bounds read in Exiv2:Jp2Image:printStructure (bsc#1189330).
    - CVE-2021-32617: Fixed denial of service inside inefficient algorithm (quadratic complexity)     (bsc#1186192).
    - CVE-2021-31292: Fixed integer overflow in CrwMap:encode0x1810 (bsc#1188756).
    - CVE-2021-31291: Fixed heap-based buffer overflow vulnerability in jp2image.cpp may lead to a denial of     service (bsc#1188733).
    - CVE-2021-29470: Fixed out-of-bounds read in Exiv2:Jp2Image:encodeJp2Header (bsc#1185447).
    - CVE-2020-18899: Fixed uncontrolled memory allocation (bsc#1189636).
    - CVE-2020-18898: Fixed remote denial of service in printIFDStructure function (bsc#1189780).
    - CVE-2018-8977: Fixed remote denial of service in Exiv2::Internal::printCsLensFFFF function in     canonmn_int.cpp (bsc#1086798).
    - CVE-2018-8976: Fixed remote denial of service in image.cpp Exiv2::Internal::stringFormat via out-of-     bounds read (bsc#1086810).
    - CVE-2018-5772: Fixed segmentation fault caused by uncontrolled recursion inthe     Exiv2::Image::printIFDStructure (bsc#1076579).
    - CVE-2018-18915: Fixed an infinite loop in the Exiv2:Image:printIFDStructure function (bsc#1114690).
    - CVE-2018-10772: Fixed segmentation fault when the function Exiv2::tEXtToDataBuf() is finished     (bsc#1092096).

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.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
258949	Linux Distros Unpatched Vulnerability : CVE-2020-18898	Nessus	Misc.	2025/8/30	2026/4/28	medium
236265	Alibaba Cloud Linux 3 : 0215: exiv2 (ALINUX3-SA-2022:0215)	Nessus	Alibaba Cloud Linux Local Security Checks	2025/5/14	2025/5/14	high
160998	RHEL 8 : exiv2 (RHSA-2022:1842)	Nessus	Red Hat Local Security Checks	2022/5/11	2024/11/8	medium
161036	RHEL 8 : compat-exiv2-026 (RHSA-2022:1797)	Nessus	Red Hat Local Security Checks	2022/5/11	2024/11/7	medium
161101	AlmaLinux 8 : compat-exiv2-026 (ALSA-2022:1797)	Nessus	Alma Linux Local Security Checks	2022/5/12	2023/10/27	medium
184584	Rocky Linux 8 : exiv2 (RLSA-2022:1842)	Nessus	Rocky Linux Local Security Checks	2023/11/6	2023/11/6	medium
236164	Alibaba Cloud Linux 3 : 0195: compat-exiv2-026 (ALINUX3-SA-2022:0195)	Nessus	Alibaba Cloud Linux Local Security Checks	2025/5/14	2025/5/14	medium
166183	SUSE SLED15: exiv2 / exiv2-lang / libexiv2-26 / libexiv2-26-32bit / etc (SUSE-SU-2022:3598-1)	Nessus	SuSE Local Security Checks	2022/10/18	2026/6/25	high

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