Lucene search

K
osvGoogleOSV:GHSA-J646-GJ5P-P45G
HistorySep 21, 2023 - 5:11 p.m.

CefSharp affected by heap buffer overflow in WebP

2023-09-2117:11:42
Google
osv.dev
104
cefsharp
heap buffer overflow
webp
google chrome
remote attacker
out of bounds
memory write
html page
critical
cve-2023-4863
exploit
vulnerability
chromium
security
cve-2023-5217
workaround
disable webcodecs api
encoder usage

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

8.3 High

AI Score

Confidence

High

0.642 Medium

EPSS

Percentile

97.9%

Google is aware that an exploit for CVE-2023-4863 exists in the wild.

Description

Heap buffer overflow in WebP in Google Chrome prior to 116.0.5845.187 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: Critical)

References


Updated

There is another related security vulnerability.

> There’s another related CVE (CVE-2023-5217) that is fixed in Chromium 117.0.5938.132. This one is triggered by WebCodecs API encoder usage, so a workaround for older versions is to disable the WebCodecs API (--disable-blink-features=WebCodecs).

As per https://magpcss.org/ceforum/viewtopic.php?f=6&t=19551#p54150

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

8.3 High

AI Score

Confidence

High

0.642 Medium

EPSS

Percentile

97.9%