Vulnerability identifier: #VU29107
Vulnerability risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-674
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
libexif
Universal components / Libraries /
Libraries used by multiple products
Vendor: libexif.sourceforge.net
Description
The vulnerability allows an attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to recursion issue when processing the EXIF_IFD_INTEROPERABILITY and EXIF_IFD_EXIF tags within libexif. A remote attacker can pass specially crafted data to the application and exhaust all available CPU resources.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
libexif: 0.6.9 - 0.6.21
External links
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00000.html
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00017.html
http://github.com/libexif/libexif/commit/6aa11df549114ebda520dde4cdaea2f9357b2c89
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.