Heap-based Buffer Overflow Affecting asterisk package, versions <1:22.10.1+dfsg+~cs6.17.60671434-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIANUNSTABLE-ASTERISK-21757161
- published28 Oct 2026
- disclosed27 Oct 2026
Introduced: 27 Oct 2026
NewCVE-2026-57198 (opens in a new tab)How to fix?
Upgrade Debian:unstable asterisk to version 1:22.10.1+dfsg+~cs6.17.60671434-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream asterisk package and not the asterisk package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
Asterisk is an open source private branch exchange and telephony toolkit. In affected deployments, an authenticated attacker may cause a T.140 RED heap buffer overflow using carefully crafted packets, potentially allowing remote code execution or causing Asterisk to crash. The chan_sip channel driver must be installed and configured, and its textsupport option must be enabled; textsupport defaults to no. The chan_sip driver was deprecated in Asterisk 20 and completely removed in all later versions. Repository comparisons verify patch containment in Asterisk 20.20.1, 21.12.3, 22.10.1 and 23.4.1, and Certified Asterisk 20.7-cert11 and 22.8-cert3. The affected release-track scope remains unresolved: structured metadata includes later release tracks even though the advisory says the required chan_sip driver was removed there.
References
- https://security-tracker.debian.org/tracker/CVE-2026-57198
- https://github.com/asterisk/asterisk/commit/0601c33d4edf8c8f221de91cead59460fb1e7180
- https://github.com/asterisk/asterisk/commit/111487298a954a029daae941eac423f0609b1261
- https://github.com/asterisk/asterisk/commit/536218a86b797996e8e8844deacc8207de373701
- https://github.com/asterisk/asterisk/commit/a89b61d7c756f816c7fa5327ead9e889f1531202
- https://github.com/asterisk/asterisk/commit/eaa108c68a32c080d7a168ef1d8bf784d5d830f4
- https://github.com/asterisk/asterisk/commit/eef894282be203cb9e6d8e9692e9c360a0b569b4
- https://github.com/asterisk/asterisk/commit/fde69a1f3ff17f507a1578ae27b528f43ceb5efd
- https://github.com/asterisk/asterisk/releases/tag/20.20.1
- https://github.com/asterisk/asterisk/releases/tag/21.12.3
- https://github.com/asterisk/asterisk/releases/tag/22.10.1
- https://github.com/asterisk/asterisk/releases/tag/23.4.1
- https://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11
- https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3
- https://github.com/asterisk/asterisk/security/advisories/GHSA-vfhr-r9x9-c687
- https://github.com/asterisk/asterisk/tree/24.0.0-pre1