Various minor vulnerabilities have been addredd in libexif, a library to parse EXIF metadata files.

CVE-2018-20030

This issue had already been addressed via DLA-2214-1. However, upstream provided an updated patch, so this has been followed up on.

CVE-2020-13112

Several buffer over-reads in EXIF MakerNote handling could have lead to information disclosure and crashes. This issue is different from already resolved CVE-2020-0093.

CVE-2020-13113

Use of uninitialized memory in EXIF Makernote handling could have lead to crashes and potential use-after-free conditions.

CVE-2020-13114

An unrestricted size in handling Canon EXIF MakerNote data could have lead to consumption of large amounts of compute time for decoding EXIF data.

For Debian 8 'Jessie', these problems have been fixed in version 0.6.21-2+deb8u3.

We recommend that you upgrade your libexif 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.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:2672 advisory.

    The libexif packages provide a library for extracting extra information from image files.

    Security Fix(es):

    * libexif: several buffer over-reads in EXIF MakerNote handling can lead to information disclosure and DoS     (CVE-2020-13112)

    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.

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.

This update for libexif to 0.6.22 fixes the following issues :

Security issues fixed :

CVE-2016-6328: Fixed an integer overflow in parsing MNOTE entry data of the input file (bsc#1055857).

CVE-2017-7544: Fixed an out-of-bounds heap read vulnerability in exif_data_save_data_entry function in libexif/exif-data.c (bsc#1059893).

CVE-2018-20030: Fixed a denial of service by endless recursion (bsc#1120943).

CVE-2019-9278: Fixed an integer overflow (bsc#1160770).

CVE-2020-0093: Fixed an out-of-bounds read in exif_data_save_data_entry (bsc#1171847).

CVE-2020-12767: Fixed a divide-by-zero error in exif_entry_get_value (bsc#1171475).

CVE-2020-13112: Fixed a time consumption DoS when parsing canon array markers (bsc#1172121).

CVE-2020-13113: Fixed a potential use of uninitialized memory (bsc#1172105).

CVE-2020-13114: Fixed various buffer overread fixes due to integer overflows in maker notes (bsc#1172116).

Non-security issues fixed :

libexif was updated to version 0.6.22 :

  - New translations: ms

  - Updated translations for most languages

  - Some useful EXIF 2.3 tag added :

  - EXIF_TAG_GAMMA

  - EXIF_TAG_COMPOSITE_IMAGE

  - EXIF_TAG_SOURCE_IMAGE_NUMBER_OF_COMPOSITE_IMAGE

  - EXIF_TAG_SOURCE_EXPOSURE_TIMES_OF_COMPOSITE_IMAGE

  - EXIF_TAG_GPS_H_POSITIONING_ERROR

  - EXIF_TAG_CAMERA_OWNER_NAME

  - EXIF_TAG_BODY_SERIAL_NUMBER

  - EXIF_TAG_LENS_SPECIFICATION

  - EXIF_TAG_LENS_MAKE

  - EXIF_TAG_LENS_MODEL

  - EXIF_TAG_LENS_SERIAL_NUMBER

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.

According to the versions of the libexif package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - An issue was discovered in libexif before 0.6.22.
    Several buffer over-reads in EXIF MakerNote handling     could lead to information disclosure and crashes. This     is different from CVE-2020-0093.(CVE-2020-13112)

  - An issue was discovered in libexif before 0.6.22. Use     of uninitialized memory in EXIF Makernote handling     could lead to crashes and potential use-after-free     conditions.(CVE-2020-13113)

  - An issue was discovered in libexif before 0.6.22. An     unrestricted size in handling Canon EXIF MakerNote data     could lead to consumption of large amounts of compute     time for decoding EXIF data.(CVE-2020-13114)

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

According to the versions of the libexif package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - An issue was discovered in libexif before 0.6.22. An     unrestricted size in handling Canon EXIF MakerNote data     could lead to consumption of large amounts of compute     time for decoding EXIF data.(CVE-2020-13114)

  - An issue was discovered in libexif before 0.6.22. Use     of uninitialized memory in EXIF Makernote handling     could lead to crashes and potential use-after-free     conditions.(CVE-2020-13113)

  - An issue was discovered in libexif before 0.6.22.
    Several buffer over-reads in EXIF MakerNote handling     could lead to information disclosure and crashes. This     is different from CVE-2020-0093.(CVE-2020-13112)

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

According to the versions of the libexif package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - exif_entry_get_value in exif-entry.c in libexif 0.6.21     has a divide-by-zero error.(CVE-2020-12767)

  - An issue was discovered in libexif before 0.6.22.
    Several buffer over-reads in EXIF MakerNote handling     could lead to information disclosure and crashes. This     is different from CVE-2020-0093.(CVE-2020-13112)

  - An issue was discovered in libexif before 0.6.22. Use     of uninitialized memory in EXIF Makernote handling     could lead to crashes and potential use-after-free     conditions.(CVE-2020-13113)

  - An issue was discovered in libexif before 0.6.22. An     unrestricted size in handling Canon EXIF MakerNote data     could lead to consumption of large amounts of compute     time for decoding EXIF data.(CVE-2020-13114)

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

According to the versions of the libexif package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - An issue was discovered in libexif before 0.6.22.
    Several buffer over-reads in EXIF MakerNote handling     could lead to information disclosure and     crashes.(CVE-2020-13112)

  - An issue was discovered in libexif before 0.6.22. Use     of uninitialized memory in EXIF Makernote handling     could lead to crashes and potential use-after-free     conditions.(CVE-2020-13113)

  - An issue was discovered in libexif before 0.6.22. An     unrestricted size in handling Canon EXIF MakerNote data     could lead to consumption of large amounts of compute     time for decoding EXIF data.(CVE-2020-13114)

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

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
136952	Debian DLA-2222-1 : libexif security update	Nessus	Debian Local Security Checks	2020/5/29	2024/3/8	critical
137834	RHEL 8 : libexif (RHSA-2020:2672)	Nessus	Red Hat Local Security Checks	2020/6/25	2024/11/7	critical
138264	SUSE SLED15 / SLES15 Security Update : libexif (SUSE-SU-2020:1553-2)	Nessus	SuSE Local Security Checks	2020/7/9	2024/3/1	critical
139139	EulerOS 2.0 SP8 : libexif (EulerOS-SA-2020-1809)	Nessus	Huawei Local Security Checks	2020/7/30	2022/5/12	critical
140144	EulerOS 2.0 SP5 : libexif (EulerOS-SA-2020-1923)	Nessus	Huawei Local Security Checks	2020/9/2	2022/5/12	critical
140909	EulerOS 2.0 SP3 : libexif (EulerOS-SA-2020-2142)	Nessus	Huawei Local Security Checks	2020/9/28	2022/5/12	critical
142348	EulerOS 2.0 SP2 : libexif (EulerOS-SA-2020-2356)	Nessus	Huawei Local Security Checks	2020/11/3	2022/5/11	critical

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