Double Free Affecting firefox package, versions <0:102.10.0-1.el7_9


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.14% (50th percentile)

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  • Snyk IDSNYK-RHEL7-FIREFOX-5488506
  • published28 Apr 2023
  • disclosed11 Apr 2023

Introduced: 11 Apr 2023

CVE-2023-1999  (opens in a new tab)
CWE-415  (opens in a new tab)

How to fix?

Upgrade RHEL:7 firefox to version 0:102.10.0-1.el7_9 or higher.
This issue was patched in RHSA-2023:1791.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

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.

CVSS Scores

version 3.1