Off-by-one Error Affecting asterisk package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.41% (33rd percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-ASTERISK-19638011
  • published6 Sept 2026
  • disclosed4 Sept 2026

Introduced: 4 Sep 2026

CVE-2026-57160  (opens in a new tab)
CWE-193  (opens in a new tab)

How to fix?

There is no fixed version for Debian:unstable asterisk.

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.

PJSIP is a free and open source multimedia communication library written in C. Prior to commit d6a0e7f, a buffer overflow can occur in pjsip_generic_array_hdr_print() in pjsip/src/pjsip/sip_msg.c, the function that serializes generic array headers (such as Allow, Require, Supported, and Unsupported). Under certain output-buffer boundary conditions the function can write one byte past the end of the buffer. This is reachable mainly in applications that parse and re-serialize incoming SIP requests — for example a proxy, SBC, or B2BUA — where a remote peer can influence the serialized message. The out-of-bounds write is a single fixed byte; code execution and information disclosure are not demonstrated, and in typical pool-based allocations the byte falls within allocation slack. This issue has been patched via commit d6a0e7f.

CVSS Base Scores

version 3.1