CVE-2019-18397
Published: 7 November 2019
A buffer overflow in the fribidi_get_par_embedding_levels_ex() function in lib/fribidi-bidi.c of GNU FriBidi through 1.0.7 allows an attacker to cause a denial of service or possibly execute arbitrary code by delivering crafted text content to a user, when this content is then rendered by an application that uses FriBidi for text layout calculations. Examples include any GNOME or GTK+ based application that uses Pango for text layout, as this internally uses FriBidi for bidirectional text layout. For example, the attacker can construct a crafted text file to be opened in GEdit, or a crafted IRC message to be viewed in HexChat.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
fribidi Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(0.19.7-2)
|
| disco |
Released
(1.0.5-3.1ubuntu0.19.04.1)
|
|
| eoan |
Released
(1.0.5-3.1ubuntu0.19.10.1)
|
|
| trusty |
Not vulnerable
(0.19.6-1)
|
|
| upstream |
Needs triage
|
|
| xenial |
Not vulnerable
(0.19.7-1)
|
|
|
Patches: upstream: https://github.com/fribidi/fribidi/commit/034c6e9a1d296286305f4cfd1e0072b879f52568 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |