CVE-2017-5448: debian debian_linux Out-of-bounds Write
Vulnerability summary
CVE-2017-5448 is a high (CVSS 8.6) Out-of-bounds Write vulnerability in debian debian_linux. EPSS estimates a 2.02% chance of exploitation in the next 30 days, higher than 80.6% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 13 · Related 7Timeline
- 11-06-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
An out-of-bounds write in "ClearKeyDecryptor" while decrypting some Clearkey-encrypted media content. The "ClearKeyDecryptor" code runs within the Gecko Media Plugin (GMP) sandbox. If a second mechanism is found to escape the sandbox, this vulnerability allows for the writing of arbitrary data within memory, resulting in a potentially exploitable crash. This vulnerability affects Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated8.6HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
- OSV · DebianEcosystem advisory · calculated8.6HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
EPSS trend
Probability
2.02%
Chance of exploitation in the next 30 days
Percentile
81%
Versus all other CVEs
30-day change
-0.04 pp
From 2.07% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Redhat6 products
- enterprise_linuxEOL6.0 | 7.0
- enterprise_linux_desktop6.0 | 7.0
- enterprise_linux_server6.0 | 7.0
- enterprise_linux_server_aus7.3 | 7.4
- enterprise_linux_server_eus7.3 | 7.4 | 7.5
Debian2 products
- firefox-esr< 45.9.0esr-1
- debian_linuxEOL7.0
Mozilla2 products
- firefox≥ unspecified, < 53 | < 45.9.0 | ≥ 52.0, < 52.1.0 | < 53.0
- firefox_esr≥ unspecified, < 45.9 | ≥ unspecified, < 52.1
Ubuntu1 product
- firefox< 53.0+build6-0ubuntu0.14.04.1 | < 53.0+build6-0ubuntu0.16.04.1
4 vendors · 11 products
