CVE-2019-11338: canonical ubuntu_linux NULL Pointer Dereference
CVSS: 8.8v3.1HighModified
AliasesUBUNTU-CVE-2019-11338DEBIAN-CVE-2019-11338
Published 18-04-2019Last modified 04-08-2024
Vulnerability summary
CVE-2019-11338 is a high (CVSS 8.8) NULL Pointer Dereference vulnerability in canonical ubuntu_linux. EPSS estimates a 2.35% chance of exploitation in the next 30 days, higher than 83.4% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.1 (NVD)EPSS score
2.35%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 6 · Related 4Timeline
- 18-04-2019PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
libavcodec/hevcdec.c in FFmpeg 3.4 and 4.1.2 mishandles detection of duplicate first slices, which allows remote attackers to cause a denial of service (NULL pointer dereference and out-of-array access) or possibly have unspecified other impact via crafted HEVC data.
CVSS metrics
5 scores · 3 sources · 3 versionsHigh 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
High 8.8Preferred score · OSV · Ubuntu (Ecosystem advisory) · calculated from vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesSingle source
Medium 6.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
2.35%
Chance of exploitation in the next 30 days
Percentile
83%
Versus all other CVEs
30-day change
0.00 pp
From 2.35% on 18-09-2026
18-09-202618-10-2026
EPSS score2.35%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian2 products
- ffmpeg< 7:4.1.3-1
- debian_linuxEOL8.0 | 9.0
Canonical1 product
- ubuntu_linuxEOL16.04 | 18.04 | 18.10 | 19.04 | 20.04
Ffmpeg1 product
- ffmpegEOL3.4 | 4.1.2
Novell1 product
Ubuntu1 product
- ffmpeg< 7:2.8.17-0ubuntu0.1 | < 7:3.4.6-0ubuntu0.18.04.1
5 vendors · 6 products
References
14 links- github.com/FFmpeg/FFmpeg/commit/54655623a82632e7624714d7b2a3e039dc5faa7eX Refsource MISCPatchThird Party AdvisoryREPORT
- lists.debian.org/debian-lts-announce/2019/05/msg00043.htmlMailing ListX Refsource MLISTThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-01/msg00012.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- github.com/FFmpeg/FFmpeg/commit/9ccc633068c6fe76989f487c8932bd11886ad65bX Refsource MISCPatchThird Party Advisory