| Name | CVE-2018-20030 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more) |
| References | DLA-2214-1, DLA-2222-1 |
| NVD severity | high |
| Debian Bugs | 918730 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| libexif (PTS) | stretch | 0.6.21-2+deb9u4 | fixed |
| stretch (security) | 0.6.21-2+deb9u1 | vulnerable | |
| buster | 0.6.21-5.1+deb10u4 | fixed | |
| buster (security) | 0.6.21-5.1+deb10u1 | fixed | |
| bullseye, sid | 0.6.22-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| libexif | source | jessie | 0.6.21-2+deb8u3 | DLA-2222-1 | ||
| libexif | source | stretch | 0.6.21-2+deb9u2 | |||
| libexif | source | (unstable) | 0.6.21-5.1 | 918730 |
https://secuniaresearch.flexerasoftware.com/secunia_research/2018-28/
https://github.com/libexif/libexif/commit/6aa11df549114ebda520dde4cdaea2f9357b2c89