libde265-0: libde265 commit 4d45a6b contains a NULL pointer dereference vulnerability in the NAL parsing path
CVE-2026-88373 is fixed in 3 products on 1 platform, first by libde265-0 1.0.16-1ubuntu0.1~esm2, released September 24, 2026. It is not reported as exploited. Patch Radar priority: High.
libde265 commit 4d45a6b contains a NULL pointer dereference vulnerability in the NAL parsing path. When de265_push_NAL() is called with a zero-length NAL unit, the resulting NAL_unit may retain a NULL backing buffer, which is subsequently passed as the destination argument to memcpy() in NAL_unit::set_data(). Although the copy length is zero, this violates the nonnull requirement of memcpy() and results in undefined behavior, causing process termination in UBSan-instrumented builds and denial of service.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| libde265 · Debian 14 | 1.1.2-1 | DEBIAN-CVE-2026-88373 | Sep 25, 2026 |
| libde265-0 · Ubuntu 18.04.6 LTS (bionic) | 1.0.2-2ubuntu0.18.04.1~esm7 | libde265-0 1.0.2-2ubuntu0.18.04.1~esm7 | Oct 12, 2026 |
| libde265-0 · Ubuntu 20.04 LTS (focal) | 1.0.4-1ubuntu0.4+esm3 | libde265-0 1.0.4-1ubuntu0.4+esm3 | Oct 12, 2026 |
| libde265-0 · Ubuntu 22.04.1 LTS (jammy) | 1.0.8-1ubuntu0.3+esm3 | libde265-0 1.0.8-1ubuntu0.3+esm3 | Oct 12, 2026 |
| libde265-0 · Ubuntu 24.04.5 LTS (noble) | 1.0.15-1ubuntu0.2 | libde265-0 1.0.15-1ubuntu0.2 | Oct 12, 2026 |
| libde265-0 · Ubuntu 26.04.1 LTS (resolute) | 1.0.16-1ubuntu0.1~esm2 | libde265-0 1.0.16-1ubuntu0.1~esm2 | Sep 24, 2026 |
| libde265-examples · Ubuntu 18.04.6 LTS (bionic) | 1.0.2-2ubuntu0.18.04.1~esm7 | libde265-examples 1.0.2-2ubuntu0.18.04.1~esm7 | Oct 12, 2026 |
| libde265-examples · Ubuntu 20.04 LTS (focal) | 1.0.4-1ubuntu0.4+esm3 | libde265-examples 1.0.4-1ubuntu0.4+esm3 | Oct 12, 2026 |
| libde265-examples · Ubuntu 22.04.1 LTS (jammy) | 1.0.8-1ubuntu0.3+esm3 | libde265-examples 1.0.8-1ubuntu0.3+esm3 | Oct 12, 2026 |
| libde265-examples · Ubuntu 24.04.5 LTS (noble) | 1.0.15-1ubuntu0.2 | libde265-examples 1.0.15-1ubuntu0.2 | Oct 12, 2026 |
| libde265-examples · Ubuntu 26.04.1 LTS (resolute) | 1.0.16-1ubuntu0.1~esm2 | libde265-examples 1.0.16-1ubuntu0.1~esm2 | Sep 24, 2026 |
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