CLSA-2026-1788170819
See a problem?- Import Source
- https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1788170819.json
- JSON Data
- https://api.osv.dev/v1/vulns/CLSA-2026-1788170819
- Upstream
- Published
- 2026-08-31T10:07:11Z
- Modified
- 2026-10-26T09:32:04Z
- Summary
- Fix CVE(s): CVE-2021-4156, CVE-2022-33065, CVE-2025-52194
- Details
-
- SECURITY UPDATE: multiple signed integer overflows in the AU, MAT4/MAT5,
AVR, SDS, AIFF, IRCAM, RF64, PCM and IMA-ADPCM header parsers allow
denial of service via a crafted file (ELSCVE-171688)
- debian/patches/CVE-2022-33065/CVE-2022-33065-{1..8,11..13}.patch: widen the overflowing data_end, blockwidth and sample-count calculations to sf_count_t in src/au.c, src/mat4.c, src/mat5.c, src/avr.c, src/sds.c, src/aiff.c, src/ircam.c, src/common.h, src/common.c, src/pcm.c, src/rf64.c and src/ima_adpcm.c. Byte-identical to Ubuntu's own patches as shipped in the public focal security source 1.0.28-7ubuntu0.3 (same upstream 1.0.28, same 13-patch prefix); the bionic +esm1 artifact itself is Ubuntu Pro-gated. Note that Ubuntu's CVE-2022-33065-13.patch is a squash of three upstream commits rather than the single one its header names: 3970faeb (IMA ADPCM nibble sizing) and 7e6cc7cb (stepindx initialisation) are prerequisites that 1.0.28 predates, alongside the cited 9f097e49 which carries the CVE-2022-33065 fix proper; all three are credited in that patch's provenance note.
- CVE-2022-33065
- SECURITY UPDATE: out-of-bounds read in the FLAC decoder when a frame
fails to decode and the stale frame pointer is reused (ELSCVE-171682)
- debian/patches/CVE-2021-4156.patch: NULL pflac->frame when FLAC__stream_decoder_process_single() fails in flac_read_loop() in src/flac.c. Byte-identical to Ubuntu's own patch as shipped in the public focal security source 1.0.28-7ubuntu0.3; upstream commit ced91d7b971be6173b604154c39279ce90ad87cc.
- CVE-2021-4156
- SECURITY UPDATE: undefined float-to-int conversion of the IRCAM header
sample rate on out-of-range or non-finite values (ELSCVE-171686)
- debian/patches/CVE-2025-52194.patch: convert the file-supplied sample rate with lrintf() instead of a bare (int) cast in ircam_read_header() in src/ircam.c, and include <math.h>. Backport of upstream commit 7ff854d1e0bd9a751a9ff52ed980c62afced91fe, adapted because 1.0.28 has no psf_lrintf() helper; src/mat4.c already uses lrint() for the same purpose in this tree.
- CVE-2025-52194
- SECURITY UPDATE: multiple signed integer overflows in the AU, MAT4/MAT5,
AVR, SDS, AIFF, IRCAM, RF64, PCM and IMA-ADPCM header parsers allow
denial of service via a crafted file (ELSCVE-171688)
- References
Affected packages
TuxCare:Ubuntu:18.04 / libsndfile1
Package
- Name
- libsndfile1
- Purl
- pkg:deb/tuxcare/libsndfile1?distro=ubuntu-18.04
TuxCare:Ubuntu:18.04 / libsndfile1-dev
Package
- Name
- libsndfile1-dev
- Purl
- pkg:deb/tuxcare/libsndfile1-dev?distro=ubuntu-18.04