PT-2021-6704 · Exiv2+1 · Exiv2+1

92Wyunchao · Published 2021-08-23 · Updated 2023-12-22 · CVE-2020-18774

Positive Technologies (AI Summary)

CVSS v2.0

7.1

High

Base vector

AV:N/AC:M/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Exiv2 version 0.27.99.0

Description The issue is related to a float point exception in the printLong function in tags int.cpp, which can be exploited by attackers to cause a denial of service (DOS) via a crafted tif file. This is due to a lack of division by zero checking, allowing a remote attacker to disrupt service using a specially crafted file.

Recommendations For Exiv2 version 0.27.99.0, consider disabling the printLong function in tags int.cpp as a temporary workaround until a patch is available. Restrict access to handling tif files to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Divide By Zero

Weakness Enumeration

CWE-369

Related Identifiers

BDU:2022-02062

CVE-2020-18774

Affected Products

Debian

Exiv2

References · 11

• 🔥 https://github.com/Exiv2/exiv2/issues/759 · Exploit
• https://security-tracker.debian.org/tracker/CVE-2020-18774 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-18774 · Vendor Advisory
• https://security.gentoo.org/glsa/202312-06 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-18774 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-18774 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-18774 · Security Note
• https://osv.dev/vulnerability/CVE-2020-18774 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-18774 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-02062 · Security Note
• https://t.me/cvenotify/19962 · Telegram Post