usn-5472-1

Severity

Medium

Vendor

Canonical Ubuntu

Versions Affected

• Canonical Ubuntu 18.04

Description

It was discovered that FFmpeg would attempt to divide by zero when using Linear Predictive Coding (LPC) or AAC codecs. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 21.10. (CVE-2020-20445, CVE-2020-20446, CVE-2020-20453) It was discovered that FFmpeg incorrectly handled certain input. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 21.10. (CVE-2020-20450) It was discovered that FFmpeg incorrectly handled file conversion to APNG format. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-21041) It was discovered that FFmpeg incorrectly handled remuxing RTP-hint tracks. A remote attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-21688) It was discovered that FFmpeg incorrectly handled certain specially crafted AVI files. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 21.10. (CVE-2020-21697) It was discovered that FFmpeg incorrectly handled writing MOV video tags. An attacker could possibly use this issue to cause a denial of service, obtain sensitive information or execute arbitrary code. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 21.10. (CVE-2020-22015) It was discovered that FFmpeg incorrectly handled writing MOV files. An attacker could possibly use this issue to cause a denial of service or other unspecified impact. This issue affected only Ubuntu 18.04 LTS. (CVE-2020-22016) It was discovered that FFmpeg incorrectly handled memory when using certain filters. An attacker could possibly use this issue to cause a denial of service or other unspecified impact. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-22017, CVE-2020-22020, CVE-2020-22022, CVE-2020-22023, CVE-2022-22025, CVE-2020-22026, CVE-2020-22028, CVE-2020-22031, CVE-2020-22032, CVE-2020-22034, CVE-2020-22036, CVE-2020-22042) It was discovered that FFmpeg incorrectly handled memory when using certain filters. An attacker could possibly use this issue to cause a denial of service or other unspecified impact. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 21.10. (CVE-2020-22019, CVE-2020-22021, CVE-2020-22033) It was discovered that FFmpeg incorrectly handled memory when using certain filters. An attacker could possibly use this issue to cause a denial of service or other unspecified impact. This issue only affected Ubuntu 21.10. (CVE-2020-22027, CVE-2020-22029, CVE-2020-22030, CVE-2020-22035) It was discovered that FFmpeg incorrectly handled certain specially crafted JPEG files. An attacker could possibly use this issue to obtain sensitive information. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 21.10. (CVE-2020-22037) It was discovered that FFmpeg incorrectly performed calculations in EXR codec. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-35965) It was discovered that FFmpeg did not verify return values of functions init_vlc and init_get_bits. An attacker could possibly use this issue to cause a denial of service or other unspecified impact. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 21.10. (CVE-2021-38114, CVE-2021-38171) It was discovered that FFmpeg incorrectly handled certain specially crafted files. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 21.10 and Ubuntu 22.04 LTS. (CVE-2022-1475) Update Instructions: Run sudo ua fix USN-5472-1 to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: libavresample-dev – 7:4.2.7-0ubuntu0.1 libavcodec-extra – 7:4.2.7-0ubuntu0.1 libavformat-dev – 7:4.2.7-0ubuntu0.1 libswscale5 – 7:4.2.7-0ubuntu0.1 libavresample4 – 7:4.2.7-0ubuntu0.1 libavcodec-dev – 7:4.2.7-0ubuntu0.1 libavutil-dev – 7:4.2.7-0ubuntu0.1 libavfilter-extra – 7:4.2.7-0ubuntu0.1 libswscale-dev – 7:4.2.7-0ubuntu0.1 libswresample-dev – 7:4.2.7-0ubuntu0.1 libswresample3 – 7:4.2.7-0ubuntu0.1 libavdevice-dev – 7:4.2.7-0ubuntu0.1 libavformat58 – 7:4.2.7-0ubuntu0.1 libavdevice58 – 7:4.2.7-0ubuntu0.1 libavfilter-dev – 7:4.2.7-0ubuntu0.1 libpostproc55 – 7:4.2.7-0ubuntu0.1 libpostproc-dev – 7:4.2.7-0ubuntu0.1 libavcodec-extra58 – 7:4.2.7-0ubuntu0.1 libavfilter-extra7 – 7:4.2.7-0ubuntu0.1 libavutil56 – 7:4.2.7-0ubuntu0.1 libavfilter7 – 7:4.2.7-0ubuntu0.1 ffmpeg – 7:4.2.7-0ubuntu0.1 ffmpeg-doc – 7:4.2.7-0ubuntu0.1 libavcodec58 – 7:4.2.7-0ubuntu0.1 No subscription required

CVEs contained in this USN include: CVE-2020-20445, CVE-2020-20446, CVE-2020-20450, CVE-2020-20453, CVE-2020-21041, CVE-2020-21688, CVE-2020-21697, CVE-2020-22015, CVE-2020-22016, CVE-2020-22017, CVE-2020-22019, CVE-2020-22020, CVE-2020-22021, CVE-2020-22022, CVE-2020-22023, CVE-2020-22025, CVE-2020-22026, CVE-2020-22027, CVE-2020-22028, CVE-2020-22029, CVE-2020-22030, CVE-2020-22031, CVE-2020-22032, CVE-2020-22033, CVE-2020-22034, CVE-2020-22035, CVE-2020-22036, CVE-2020-22037, CVE-2020-22042, CVE-2020-35965, CVE-2021-38114, CVE-2021-38171, CVE-2021-38291, CVE-2022-1475.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

• cflinuxfs3
  • All versions prior to 0.306.0
• CF Deployment
  • All versions prior to 21.4.0

Mitigation

Users of affected products are strongly encouraged to follow the mitigations below.

The Cloud Foundry project recommends upgrading the following releases:

• cflinuxfs3
  • Upgrade all versions to 0.306.0 or greater
• CF Deployment
  • Upgrade all versions to 21.4.0 or greater

References

• USN Notice
• CVE-2020-20445
• CVE-2020-20446
• CVE-2020-20450
• CVE-2020-20453
• CVE-2020-21041
• CVE-2020-21688
• CVE-2020-21697
• CVE-2020-22015
• CVE-2020-22016
• CVE-2020-22017
• CVE-2020-22019
• CVE-2020-22020
• CVE-2020-22021
• CVE-2020-22022
• CVE-2020-22023
• CVE-2020-22025
• CVE-2020-22026
• CVE-2020-22027
• CVE-2020-22028
• CVE-2020-22029
• CVE-2020-22030
• CVE-2020-22031
• CVE-2020-22032
• CVE-2020-22033
• CVE-2020-22034
• CVE-2020-22035
• CVE-2020-22036
• CVE-2020-22037
• CVE-2020-22042
• CVE-2020-35965
• CVE-2021-38114
• CVE-2021-38171
• CVE-2021-38291
• CVE-2022-1475

History

2022-07-28: Initial vulnerability report published.