CVE-2016-1521 — Improper Restriction of Operations within the Bounds of a Memory Buffer in Mozilla Firefox

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory BufferCWE-125 — Out-of-bounds Read10 documents9 sources
Severity
8.8HIGHNVD
EPSS
0.8%
top 25.15%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
5
SIL Graphite2Mozilla FirefoxMozilla Thunderbird+2 more
Timeline
PublishedFeb 13
Latest updateMay 17

Description

The directrun function in directmachine.cpp in Libgraphite in Graphite 2 1.2.4, as used in Mozilla Firefox before 43.0 and Firefox ESR 38.x before 38.6.1, does not validate a certain skip operation, which allows remote attackers to execute arbitrary code, obtain sensitive information, or cause a denial of service (out-of-bounds read and application crash) via a crafted Graphite smart font.

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages4 packages

▶NVDmozilla/firefox42.0+12
▶Debiansil/graphite2< 1.3.5-1+3
▶NVDsil/graphite21.2.4

Also affects: Debian Linux 7.0, 8.0, Fedora 22, 23

🔴Vulnerability Details

3
GHSA
GHSA-765v-rgjj-3mrx: The directrun function in directmachine↗2022-05-17
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CVEList
CVE-2016-1521: The directrun function in directmachine↗2016-02-13
▶
OSV
CVE-2016-1521: The directrun function in directmachine↗2016-02-13
▶

📋Vendor Advisories

3
Ubuntu
graphite2 vulnerabilities↗2016-02-17
▶
Red Hat
graphite2: Out-of-bound read vulnerability triggered by crafted fonts↗2016-02-05
▶
Debian
CVE-2016-1521: graphite2 - The directrun function in directmachine.cpp in Libgraphite in Graphite 2 1.2.4, ...↗2016
▶

💬Community

2
Bugzilla
CVE-2016-1521 graphite2: Out-of-bound read vulnerability triggered by crafted fonts↗2016-02-09
▶
Bugzilla
CVE-2016-1521 graphite2: Two out-of-bound read vulnerabilities triggered by crafted fonts [fedora-all]↗2016-02-09
▶
CVE-2016-1521 — Mozilla Firefox vulnerability | cvebase