CVE-2017-7753
icedove - security update
9.1
CRITICAL
CVSS 3.1
EPSS 1.7%
Description
An out-of-bounds read occurs when applying style rules to pseudo-elements, such as ::first-line, using cached style data. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.
How to fix CVE-2017-7753
To remediate CVE-2017-7753, upgrade the affected package to a fixed version below.
- Debian/firefox-esr—upgrade to 52.3.0esr-1 or later
- —upgrade to 52.3.0esr-1~deb7u1 or later
- —upgrade to 52.3.0esr-1~deb8u2 or later
- —upgrade to 1:52.3.0-4~deb7u1 or later
- —upgrade to 1:52.3.0-4~deb8u2 or later
Is CVE-2017-7753 being exploited?
Low — EPSS is 1.7%, meaning exploitation activity has not been observed at scale.
Affected packages (5)
- from 0, < 52.3.0esr-1
- from 0, < 52.3.0esr-1~deb7u1
- from 0, < 52.3.0esr-1~deb8u2
- from 0, < 1:52.3.0-4~deb7u1
- from 0, < 1:52.3.0-4~deb8u2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |