PT-2018-15256 · Exiv2+4 · Exiv2+4

Fish · Published 2018-12-10 · Updated 2020-04-28 · CVE-2018-20096

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Exiv2 versions 0.27-RC3

Description A heap-based buffer over-read issue exists in the Exiv2::tEXtToDataBuf function of pngimage.cpp. This can be exploited by a crafted input, leading to a remote denial of service attack.

Recommendations For Exiv2 version 0.27-RC3, consider applying a patch or fix that addresses the heap-based buffer over-read issue in the Exiv2::tEXtToDataBuf function. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

ALSA-2020:1577

CESA-2019_2101

CESA-2020_1577

CVE-2018-20096

PYSEC-2018-117

RHSA-2019:2101

RHSA-2019_2101

RHSA-2020:1577

RHSA-2020_1577

RLSA-2020:1577

Affected Products

Almalinux

Centos

Exiv2

Red Hat

Rocky Linux

References · 76

• 🔥 https://github.com/Exiv2/exiv2/issues/590 · Exploit
• 🔥 https://github.com/TeamSeri0us/pocs/tree/master/exiv2/20181206 · Exploit
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZXCEKTYF7HLM6VH2WCWO2HXTJH37MBLA · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2018-117 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-20096 · Security Note
• https://linux.oracle.com/errata/ELSA-2019-2101.html · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2020:1577 · Vendor Advisory
• https://errata.almalinux.org/8/ALSA-2020-1577.html · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2019:2101 · Vendor Advisory
• https://osv.dev/vulnerability/RLSA-2020:1577 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2020-1577.html · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2018-20096 · Security Note
• https://osv.dev/vulnerability/CVE-2018-20096 · Vendor Advisory
• https://errata.rockylinux.org/RLSA-2020:1577 · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1660426 · Note