GLSA-202309-05 : WebP: Multiple vulnerabilities

high Nessus Plugin ID 181513

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Description

The remote host is affected by the vulnerability described in GLSA-202309-05 (WebP: Multiple vulnerabilities)

- There exists a use after free/double free in libwebp. An attacker can use the ApplyFiltersAndEncode() function and loop through to free best.bw and assign best = trial pointer. The second loop will then return 0 because of an Out of memory error in VP8 encoder, the pointer is still assigned to trial and the AddressSanitizer will attempt a double free. (CVE-2023-1999)

- 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) (CVE-2023-4863)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

All WebP users should upgrade to the latest version:

# emerge --sync # emerge --ask --oneshot --verbose >=media-libs/libwebp-1.3.1_p20230908

Plugin Details

Severity: High

ID: 181513

File Name: gentoo_GLSA-202309-05.nasl

Version: 1.2

Type: local

Family: Gentoo Local Security Checks

Published: 9/17/2023

Updated: 10/2/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.8

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2023-4863

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 8.4

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:libwebp, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/17/2023

Vulnerability Publication Date: 4/11/2023

CISA Known Exploited Vulnerability Due Dates: 10/4/2023

Reference Information

CVE: CVE-2023-1999, CVE-2023-4863

Detections

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