CVE-2018-20030
An error when processing the EXIF_IFD_INTEROPERABILITY and EXIF_IFD_EXIF tags within libexif version 0.6.21 can be exploited to exhaust available CPU resources.
02 Description
An error when processing the EXIF_IFD_INTEROPERABILITY and EXIF_IFD_EXIF tags within libexif version 0.6.21 can be exploited to exhaust available CPU resources.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 3.79% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 89.5% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2019-02-20 17:00Z7 YR AGO
- Last updated
- 2024-09-17 01:01Z2 YR AGO
- Reserved
- 2018-12-10
- Assigning CNA
- flexera
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- fa65f7f5c253adafcf7414858513b0cf0e9b0116336b17032ae0370ec320d13a
05 Affected products
06 References
- github.comhttps://github.com/libexif/libexif/commit/6aa11df549114ebda520dde4cdaea2f9357b2c89
- secuniaresearch.flexerasoftware.comhttps://secuniaresearch.flexerasoftware.com/secunia_research/2018-28/
- lists.opensuse.orgopenSUSE-SU-2020:0264http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00000.html
- lists.debian.org[debian-lts-announce] 20200518 [SECURITY] [DLA 2214-1] libexif security updatehttps://lists.debian.org/debian-lts-announce/2020/05/msg00016.html
- usn.ubuntu.comUSN-4358-1https://usn.ubuntu.com/4358-1/
- lists.debian.org[debian-lts-announce] 20200528 [SECURITY] [DLA 2222-1] libexif security updatehttps://lists.debian.org/debian-lts-announce/2020/05/msg00025.html
- lists.opensuse.orgopenSUSE-SU-2020:0793http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00017.html
07 Fixed in
Arch Linux
- libexif Fixed in 0.6.22-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
Debian 12
- libexif Fixed in 0.6.21-5.1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- libexif Fixed in 0.6.21-5.1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- libexif Fixed in 0.6.21-5.1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- libexif Fixed in 0.6.21-2ubuntu0.2
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- libexif Fixed in 0.6.21-4ubuntu0.2
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 14.04 LTS
- libexif Fixed in 0.6.21-1ubuntu1+esm2Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.