UBUNTU-CVE-2026-53702
A stack buffer overflow flaw was found in the GStreamer H.265 codec parser library (gst-plugins-bad). When parsing a buffering period SEI message, the parser uses an incorrect loop bound derived from cpb_cnt_minus1[i] (the loop index) instead of the sub-layer 0 CPB count cpb_cnt_minus1[0] from the referenced Sequence Parameter Set. A crafted H.265 video file or stream can cause the parser to write beyond the bounds of stack-allocated CPB delay arrays, resulting in a crash or potential stack memory corruption.
UBUNTU-CVE-2026-53702
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:UBUNTU-CVE-2026-53702
gst-plugins-bad1.0
Source reference: /affected/0/package/name
- Affected versions
- 1.2.0-3ubuntu5
Source reference:
/affected/0/versions1.2.1-1ubuntu1Source reference:
/affected/0/versions1.2.1-1ubuntu2Source reference:
/affected/0/versions1.2.2-1ubuntu1Source reference:
/affected/0/versions1.2.2-1ubuntu2Source reference:
/affected/0/versions1.2.2-1ubuntu4Source reference:
/affected/0/versions1.2.3-1ubuntu1Source reference:
/affected/0/versions1.2.3-1ubuntu2Source reference:
/affected/0/versions1.2.4-1~ubuntu1Source reference:
/affected/0/versions1.2.4-1~ubuntu1.1Source reference:
/affected/0/versions1.2.4-1~ubuntu1.1+esm1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
gst-plugins-bad1.0
Source reference: /affected/1/package/name
- Affected versions
- 1.6.0-1ubuntu1
Source reference:
/affected/1/versions1.6.1-1ubuntu1Source reference:
/affected/1/versions1.6.2-1ubuntu1Source reference:
/affected/1/versions1.7.1-1ubuntu1Source reference:
/affected/1/versions1.7.1-1ubuntu3Source reference:
/affected/1/versions1.7.1-1ubuntu4Source reference:
/affected/1/versions1.7.2-1ubuntu1Source reference:
/affected/1/versions1.7.90-1ubuntu2Source reference:
/affected/1/versions1.7.91-1ubuntu1Source reference:
/affected/1/versions1.8.0-1ubuntu1Source reference:
/affected/1/versions1.8.1-1ubuntu0.1Source reference:
/affected/1/versions1.8.2-1ubuntu0.1Source reference:
/affected/1/versions1.8.2-1ubuntu0.2Source reference:
/affected/1/versions1.8.3-1ubuntu0.2Source reference:
/affected/1/versions1.8.3-1ubuntu0.2+esm1Source reference:
/affected/1/versions1.8.3-1ubuntu0.2+esm2Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
gst-plugins-bad1.0
Source reference: /affected/2/package/name
- Affected versions
- 1.12.3-1ubuntu1
Source reference:
/affected/2/versions1.12.3-1ubuntu2Source reference:
/affected/2/versions1.12.3-2ubuntu1Source reference:
/affected/2/versions1.12.4-2ubuntu1Source reference:
/affected/2/versions1.12.4-2ubuntu2Source reference:
/affected/2/versions1.13.1-1ubuntu1Source reference:
/affected/2/versions1.13.91-1ubuntu1Source reference:
/affected/2/versions1.14.0-1ubuntu1Source reference:
/affected/2/versions1.14.1-1ubuntu1~ubuntu18.04.1Source reference:
/affected/2/versions1.14.4-1ubuntu1~ubuntu18.04.1Source reference:
/affected/2/versions1.14.5-0ubuntu1~18.04.1Source reference:
/affected/2/versions1.14.5-0ubuntu1~18.04.1+esm1Source reference:
/affected/2/versions1.14.5-0ubuntu1~18.04.1+esm2Source reference:
/affected/2/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
gst-plugins-bad1.0
Source reference: /affected/3/package/name
- Affected versions
- 1.16.1-1ubuntu1
Source reference:
/affected/3/versions1.16.1-1ubuntu3Source reference:
/affected/3/versions1.16.1-1ubuntu4Source reference:
/affected/3/versions1.16.1-1ubuntu5Source reference:
/affected/3/versions1.16.1-1ubuntu6Source reference:
/affected/3/versions1.16.1-1ubuntu8Source reference:
/affected/3/versions1.16.2-1ubuntu1Source reference:
/affected/3/versions1.16.2-1ubuntu2Source reference:
/affected/3/versions1.16.2-2ubuntu1Source reference:
/affected/3/versions1.16.2-2.1ubuntu1Source reference:
/affected/3/versions1.16.3-0ubuntu1Source reference:
/affected/3/versions1.16.3-0ubuntu1.1Source reference:
/affected/3/versions1.16.3-0ubuntu1.1+esm1Source reference:
/affected/3/versions1.16.3-0ubuntu1.1+esm2Source reference:
/affected/3/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
gst-plugins-bad1.0
Source reference: /affected/4/package/name
- Affected versions
- 1.18.5-1ubuntu1
Source reference:
/affected/4/versions1.18.5-1ubuntu3Source reference:
/affected/4/versions1.20.0-2ubuntu2Source reference:
/affected/4/versions1.20.1-1ubuntu2Source reference:
/affected/4/versions1.20.3-0ubuntu1Source reference:
/affected/4/versions1.20.3-0ubuntu1.1Source reference:
/affected/4/versions1.20.3-0ubuntu1.1+esm2Source reference:
/affected/4/versions1.20.3-0ubuntu1.1+esm3Source reference:
/affected/4/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
gst-plugins-bad1.0
Source reference: /affected/5/package/name
- Affected versions
- 1.22.4-1ubuntu1
Source reference:
/affected/5/versions1.22.4-1ubuntu2Source reference:
/affected/5/versions1.22.4-1ubuntu4Source reference:
/affected/5/versions1.22.9-2ubuntu1Source reference:
/affected/5/versions1.24.0-1ubuntu3Source reference:
/affected/5/versions1.24.0-1ubuntu4Source reference:
/affected/5/versions1.24.2-1ubuntu4Source reference:
/affected/5/versions1.24.2-1ubuntu4+esm1Source reference:
/affected/5/versions1.24.2-1ubuntu4+esm2Source reference:
/affected/5/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
gst-plugins-bad1.0
Source reference: /affected/6/package/name
- Affected versions
- 1.26.0-1ubuntu2
Source reference:
/affected/6/versions1.26.2-1ubuntu1Source reference:
/affected/6/versions1.26.3-1ubuntu1Source reference:
/affected/6/versions1.26.4-1ubuntu1Source reference:
/affected/6/versions1.26.5-1ubuntu2Source reference:
/affected/6/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
gst-plugins-bad1.0
Source reference: /affected/7/package/name
- Affected versions
- 1.26.5-1ubuntu2
Source reference:
/affected/7/versions1.27.2-1ubuntu1Source reference:
/affected/7/versions1.27.90-1ubuntu2Source reference:
/affected/7/versions1.28.0-1ubuntu2Source reference:
/affected/7/versions1.28.1-2ubuntu2Source reference:
/affected/7/versions1.28.1-2ubuntu3Source reference:
/affected/7/versions1.28.2-1ubuntu1Source reference:
/affected/7/versions - Fixed versions
- 1.28.2-1ubuntu1.1
Source reference:
/affected/7/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
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"1.2.4-1~ubuntu1",
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"ecosystem": "Ubuntu:Pro:18.04:LTS"
},
"versions": [
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"1.12.3-1ubuntu2",
"1.12.3-2ubuntu1",
"1.12.4-2ubuntu1",
"1.12.4-2ubuntu2",
"1.13.1-1ubuntu1",
"1.13.91-1ubuntu1",
"1.14.0-1ubuntu1",
"1.14.1-1ubuntu1~ubuntu18.04.1",
"1.14.4-1ubuntu1~ubuntu18.04.1",
"1.14.5-0ubuntu1~18.04.1",
"1.14.5-0ubuntu1~18.04.1+esm1",
"1.14.5-0ubuntu1~18.04.1+esm2"
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"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53702.json"
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"1.16.1-1ubuntu4",
"1.16.1-1ubuntu5",
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"1.16.1-1ubuntu8",
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],
"availability": "No subscription required"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #51957 · Revision 1
- Added to Heist Feed
- Publisher date