[OpenSIPS-Devel] [OpenSIPS/opensips] e060fe: parse_content_length(): Fix out-of-bounds read edg...

[Liviu Chircu]

  Branch: refs/heads/master
  Home:   https://github.com/OpenSIPS/opensips
  Commit: e060fe93429b6da665a4d4210a49876b43223a17
      https://github.com/OpenSIPS/opensips/commit/e060fe93429b6da665a4d4210a49876b43223a17
  Author: Liviu Chircu <liviu at opensips.org>
  Date:   2023-02-07 (Tue, 07 Feb 2023)

  Changed paths:
    M parser/parse_content.c
    M parser/test/test_parser.c

  Log Message:
  -----------
  parse_content_length(): Fix out-of-bounds read edge-case (OSS-Fuzz)

This patch fixes several off-by-one read overflows while parsing a bad
Content-Length header.  Similar to a008e7c23, the error was mostly
harmless, as the supplied buffer is typically much larger in the runtime
usage of parse_msg().

Severity: Low
Fixes OSS-Fuzz#53397