JLSEC-2026-1171
- Source
- https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-1171.md
- Import Source
- https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1171.json
- JSON Data
- https://api.osv.dev/v1/vulns/JLSEC-2026-1171
- Upstream
- Published
- 2026-08-07T13:27:45.313Z
- Modified
- 2026-08-09T01:45:04.116806770Z
- Severity
-
- 8.6 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H CVSS Calculator
- 8.8 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
- Summary
- FFmpeg's RASC video decoder (decode_dlta in libavcodec/rasc.c) performs 32-bit reads and writes...
- Details
-
FFmpeg's RASC video decoder (
decode_dltainlibavcodec/rasc.c) performs 32-bit reads and writes at the row cursor before theNEXT_LINErow-boundary check and validates the DLTA region in pixel rather than byte units, so a DLTA run on a PAL8 frame can access several bytes past the row allocation. A crafted media stream using the RASC FourCC, decoded by libavcodec, triggers a bitstream-controlled out-of-bounds heap write and adjacent out-of-bounds read, leading to memory corruption. - Database specific
{ "license": "CC-BY-4.0", "sources": [ { "modified": "2026-07-31T13:18:45.483Z", "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-58049", "id": "CVE-2026-58049", "published": "2026-06-28T02:16:30.477Z", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-58049", "imported": "2026-08-07T05:41:47.275Z", "database_specific": { "status": "Awaiting Analysis" } }, { "modified": "2026-07-23T12:32:45Z", "id": "GHSA-mjxr-6gqf-w78h", "published": "2026-06-28T03:33:40Z", "url": "https://api.github.com/advisories/GHSA-mjxr-6gqf-w78h", "imported": "2026-08-07T05:41:53.583Z", "html_url": "https://github.com/advisories/GHSA-mjxr-6gqf-w78h" }, { "modified": "2026-07-31T12:04:42Z", "url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-39969", "published": "2026-06-28T01:32:52Z", "id": "EUVD-2026-39969", "imported": "2026-08-07T05:41:14.943Z", "html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-39969" } ] }- References
-
- https://access.redhat.com/errata/RHSA-2026:43711
- https://access.redhat.com/security/cve/CVE-2026-58049
- https://bugzilla.redhat.com/show_bug.cgi?id=2493952
- https://github.com/FFmpeg/FFmpeg/blob/master/libavcodec/rasc.c
- https://github.com/advisories/GHSA-mjxr-6gqf-w78h
- https://github.com/bikini/exploitarium/tree/main/ffmpeg-rasc-dlta-calc-poc
- https://nvd.nist.gov/vuln/detail/CVE-2026-58049
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-58049.json
- https://www.vulncheck.com/advisories/ffmpeg-out-of-bounds-write-in-rasc-decoder-decode-dlta
Affected packages
Julia / FFMPEG_jll
Package
- Name
- FFMPEG_jll
- Purl
- pkg:julia/FFMPEG_jll?uuid=b22a6f82-2f65-5046-a5b2-351ab43fb4e5
Julia / FFMPEG_nogpl_jll
Package
- Name
- FFMPEG_nogpl_jll
- Purl
- pkg:julia/FFMPEG_nogpl_jll?uuid=a6892c6b-5768-548c-b024-ff8dabf482c5