CVE-2023-1999: Use after free in libwebp

Published Apr 11, 2023
·
Updated

A double-free in libwebp could have led to memory corruption and a potentially exploitable crash.

Other sources

Chromium: CVE-2023-1999 Use after free in libwebp

— Microsoft

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.

— Ubuntu

This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.

— Microsoft

Affected Software

39 affected componentsFixes available
ubuntu/firefox<112.0-1
112.0-1
ubuntu/libwebp<0.6.1-2ubuntu0.18.04.2
0.6.1-2ubuntu0.18.04.2
ubuntu/libwebp<0.6.1-2ubuntu0.20.04.2
0.6.1-2ubuntu0.20.04.2
ubuntu/libwebp<1.2.2-2ubuntu0.22.04.1
1.2.2-2ubuntu0.22.04.1
ubuntu/libwebp<1.2.2-2ubuntu0.22.10.1
1.2.2-2ubuntu0.22.10.1
ubuntu/libwebp<1.2.4-0.1ubuntu0.23.04.1
1.2.4-0.1ubuntu0.23.04.1
ubuntu/libwebp<1.2.4-0.1ubuntu1
1.2.4-0.1ubuntu1
ubuntu/libwebp<1.2.4-0.1ubuntu1
1.2.4-0.1ubuntu1
ubuntu/libwebp<0.4.4-1ubuntu0.1~
0.4.4-1ubuntu0.1~
debian/firefox
127.0.2-1
debian/firefox-esr
115.12.0esr-1~deb11u1115.12.0esr-1~deb12u1115.12.0esr-1
debian/libwebp
0.6.1-2.1+deb11u21.2.4-0.2+deb12u11.4.0-0.1
debian/thunderbird
1:115.12.0-1~deb11u11:115.12.0-1~deb12u11:115.12.0-1
Microsoft Edge (Chromium-based)
Patch available
Microsoft Edge<114.0.1823.67
webmproject Libwebp>=0.4.2<1.3.1
Mozilla Thunderbird<102.10
102.10
Mozilla Firefox ESR<102.10
102.10
Mozilla Firefox<112
112
All of the following
Mozilla Firefox=112
Google Android
All of the following
Mozilla Focus=112
Google Android
alpine/firefox-esr<102.10.0-r0
102.10.0-r0
alpine/firefox-esr<102.10.0-r0
102.10.0-r0
alpine/firefox-esr<102.10.0-r0
102.10.0-r0
alpine/firefox-esr<102.10.0-r0
102.10.0-r0
alpine/firefox-esr<102.10.0-r0
102.10.0-r0
alpine/firefox-esr<102.10.0-r0
102.10.0-r0
alpine/libwebp>=0.4.2<1.2.2-r1
1.2.2-r1
alpine/libwebp>=0.4.2<1.2.3-r1
1.2.3-r1
alpine/libwebp>=0.4.2<1.2.4-r2
1.2.4-r2
alpine/libwebp>=0.4.2<1.3.0-r2
1.3.0-r2
alpine/libwebp>=0.4.2<1.3.0-r3
1.3.0-r3
alpine/libwebp>=0.4.2<1.3.0-r3
1.3.0-r3
alpine/libwebp>=0.4.2<1.3.0-r3
1.3.0-r3
alpine/libwebp>=0.4.2<1.3.0-r3
1.3.0-r3
alpine/libwebp>=0.4.2<1.3.0-r3
1.3.0-r3
alpine/libwebp>=0.4.2<1.3.0-r3
1.3.0-r3

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/firefox to a version that resolves this vulnerability.

    Fixed in 112.0-1
  2. Upgrade

    Upgrade ubuntu/libwebp to a version that resolves this vulnerability.

    Fixed in 0.6.1-2ubuntu0.18.04.2
  3. Upgrade

    Upgrade ubuntu/libwebp to a version that resolves this vulnerability.

    Fixed in 0.6.1-2ubuntu0.20.04.2
  4. Upgrade

    Upgrade ubuntu/libwebp to a version that resolves this vulnerability.

    Fixed in 1.2.2-2ubuntu0.22.04.1
  5. Upgrade

    Upgrade ubuntu/libwebp to a version that resolves this vulnerability.

    Fixed in 1.2.2-2ubuntu0.22.10.1
  6. Upgrade

    Upgrade ubuntu/libwebp to a version that resolves this vulnerability.

    Fixed in 1.2.4-0.1ubuntu0.23.04.1
  7. Upgrade

    Upgrade ubuntu/libwebp to a version that resolves this vulnerability.

    Fixed in 1.2.4-0.1ubuntu1
  8. Upgrade

    Upgrade ubuntu/libwebp to a version that resolves this vulnerability.

    Fixed in 0.4.4-1ubuntu0.1~
  9. Upgrade

    Upgrade debian/firefox to a version that resolves this vulnerability.

    Fixed in 127.0.2-1
  10. Upgrade

    Upgrade debian/firefox-esr to a version that resolves this vulnerability.

    Fixed in 115.12.0esr-1~deb11u1Fixed in 115.12.0esr-1~deb12u1Fixed in 115.12.0esr-1
  11. Upgrade

    Upgrade debian/libwebp to a version that resolves this vulnerability.

    Fixed in 0.6.1-2.1+deb11u2Fixed in 1.2.4-0.2+deb12u1Fixed in 1.4.0-0.1
  12. Upgrade

    Upgrade debian/thunderbird to a version that resolves this vulnerability.

    Fixed in 1:115.12.0-1~deb11u1Fixed in 1:115.12.0-1~deb12u1Fixed in 1:115.12.0-1
  13. Upgrade

    Upgrade Thunderbird to a version that resolves this vulnerability.

    Fixed in 102.10
  14. Upgrade

    Upgrade Firefox ESR to a version that resolves this vulnerability.

    Fixed in 102.10
  15. Upgrade

    Upgrade Firefox to a version that resolves this vulnerability.

    Fixed in 112

Event History

Apr 11, 2023
CVE Published
12:00 AM
Jun 20, 2023
CVE Published
via MITRE·11:28 AM
Data Sourced
via MITRE·11:28 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·12:15 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·12:15 PM
DescriptionSeverityAffected Software
Nov 12, 2024
Exploit Published
via GitHub·11:12 AM

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is CVE-2023-1999?

CVE-2023-1999 is a vulnerability that allows attackers to cause memory corruption and potentially exploitable crashes in libwebp due to a double-free vulnerability.

2

Is CVE-2023-1999 a high severity vulnerability?

Yes, CVE-2023-1999 is considered a high severity vulnerability.

3

Which software is affected by CVE-2023-1999?

The software affected by CVE-2023-1999 includes Thunderbird, Firefox, Firefox ESR, and libwebp.

4

How can I fix CVE-2023-1999?

To fix CVE-2023-1999, update your software to the latest version provided by the vendor.

5

Where can I find more information about CVE-2023-1999?

You can find more information about CVE-2023-1999 on the official CVE page and the bug tracking systems of Mozilla and Chromium.

Company

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