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Debian dla-4789 : libde265-0 - security update

high Nessus Plugin ID 348349

Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4789 advisory.

 ------------------------------------------------------------------------- Debian LTS Advisory DLA-4789-1 [email protected] https://www.debian.org/lts/security/ Tobias Frost September 20, 2026 https://wiki.debian.org/LTS
 -------------------------------------------------------------------------

 Package : libde265 Version : 1.0.11-1+deb12u3 CVE ID : CVE-2023-51792 CVE-2024-38949 CVE-2024-38950 CVE-2026-33164 CVE-2026-33165 CVE-2026-45382 CVE-2026-45383 CVE-2026-49295 CVE-2026-49337 CVE-2026-49346 CVE-2026-54240 CVE-2026-54241 Debian Bug : 1074416 1131468 1131469 1140431

 Multiple issues were found in libde265, an open source implementation of the H.265 video codec, which potentially may result in denial of service, heap/buffer overflows, information disclosure or code execution or have unspecified other impact.

 CVE-2023-51792

 Buffer Overflow vulnerability allows a local attacker to cause a denial of service via the allocation size exceeding the maximum supported size of 0x10000000000.

 CVE-2024-38949

 Heap Buffer Overflow vulnerability allows attackers to crash the application via crafted payload.

 CVE-2024-38950

 Heap Buffer Overflow vulnerability allows attackers to crash the application via crafted payload.

 CVE-2026-33164

 A malformed H.265 PPS NAL unit causes a segmentation fault.

 CVE-2026-33165

 A crafted HEVC bitstream causes an out-of-bounds heap write.

 CVE-2026-45382

 Heap-buffer-overflow READ in decode_slice_unit_tiles via unvalidated PPS tile geometry.

 CVE-2026-45383

 Heap buffer overflow (OOB read) in decode_slice_unit_WPP() via out-of-bounds CtbAddrRStoTS access.

 CVE-2026-49295

 Out-of-bounds write in process_reference_picture_set via predicted short-term RPS.

 CVE-2026-49337

 Unbounded memory accumulation via orphaned slice headers in `read_slice_NAL`

 CVE-2026-49346

 Heap buffer overflow in de265_image_get_buffer via SPS dimension integer overflow

 CVE-2026-54240

 Pixel accessor signed integer overflow causes heap OOB read/write

 CVE-2026-54241

 SAO sequential filter heap buffer overflow via signed integer overflow


 Two additional vulnerabilities for which CVE IDs are not yet available have been fixed. (The identifier in brackets is the GitHub identifier):

 CVE-2026-XXXX (GHSA-xp3h-6f5r-8cxp)

 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') and Use After Free and Double Free

 CVE-2026-XXXX (GHSA-mm7m-v26f-wf8x)

 heap-use-after-free in decoder_context::reset() via dangling previous_slice_header


 For Debian 12 bookworm, these problems have been fixed in version 1.0.11-1+deb12u3.

 We recommend that you upgrade your libde265 packages.

 For the detailed security status of libde265 please refer to its security tracker page at:
 https://security-tracker.debian.org/tracker/libde265

 Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
 signature.asc Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade the libde265-0 packages.

See Also

https://packages.debian.org/source/bookworm/libde265

https://security-tracker.debian.org/tracker/CVE-2023-51792

https://security-tracker.debian.org/tracker/CVE-2024-38949

https://security-tracker.debian.org/tracker/CVE-2024-38950

https://security-tracker.debian.org/tracker/CVE-2026-33164

https://security-tracker.debian.org/tracker/CVE-2026-33165

https://security-tracker.debian.org/tracker/CVE-2026-45382

https://security-tracker.debian.org/tracker/CVE-2026-45383

https://security-tracker.debian.org/tracker/CVE-2026-49295

https://security-tracker.debian.org/tracker/CVE-2026-49337

https://security-tracker.debian.org/tracker/CVE-2026-49346

https://security-tracker.debian.org/tracker/CVE-2026-54240

https://security-tracker.debian.org/tracker/CVE-2026-54241

https://security-tracker.debian.org/tracker/source-package/libde265

Plugin Details

Severity: High

ID: 348349

File Name: debian_DLA-4789.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 9/20/2026

Updated: 9/20/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.12

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-33164

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 7.7

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:12.0, p-cpe:/a:debian:debian_linux:libde265-0, p-cpe:/a:debian:debian_linux:libde265-dev, p-cpe:/a:debian:debian_linux:libde265-examples

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/20/2026

Vulnerability Publication Date: 4/19/2024

Reference Information

CVE: CVE-2023-51792, CVE-2024-38949, CVE-2024-38950, CVE-2026-33164, CVE-2026-33165, CVE-2026-45382, CVE-2026-45383, CVE-2026-49295, CVE-2026-49337, CVE-2026-49346, CVE-2026-54240, CVE-2026-54241