Branch: refs/heads/master
Home: https://github.com/OpenSIPS/opensips
Commit: a5b6d2e2b2f3e9eb72830410d3aaf1819326fe2a
https://github.com/OpenSIPS/opensips/commit/a5b6d2e2b2f3e9eb72830410d3aaf1819326fe2a
Author: John Burke <[email protected]>
Date: 2021-09-21 (Tue, 21 Sep 2021)
Changed paths:
M modules/compression/compression.c
Log Message:
-----------
compression: add logging for overflow condition
Commit: ba89136fd53c3008cf014501bf1e741939932b4b
https://github.com/OpenSIPS/opensips/commit/ba89136fd53c3008cf014501bf1e741939932b4b
Author: John Burke <[email protected]>
Date: 2021-09-21 (Tue, 21 Sep 2021)
Changed paths:
M modules/compression/compression.c
Log Message:
-----------
compression: fix overflow when hdr_field contains sanitized body
When rebuilding headers for compaction, we cannot shortcut non-compacted
headers at assembly time by using raw hdr_field.len for a few reasons: (1)
calculated compact buffer len is based on hdr_field.body not hdr_field.len, (2)
hdr_field.body is sanitized and may have adjusted len.
Commit: d016658049fe5e2fa1061d16365507de0816fdce
https://github.com/OpenSIPS/opensips/commit/d016658049fe5e2fa1061d16365507de0816fdce
Author: Liviu Chircu <[email protected]>
Date: 2026-05-19 (Tue, 19 May 2026)
Changed paths:
M modules/compression/compression.c
Log Message:
-----------
Merge branch 'compression_overflow' of github.com:john08burke/opensips into
john08burke-compression_overflow
mc_compact() calculated the output size of preserved headers using the
normalized parser fields: header name, ": ", body and CRLF.
However, for preserved long-form headers, it wrote the original raw header
span instead. If the input header contained extra whitespace after the
colon, such as "Supported: 100rel", the writer emitted more bytes than
the size calculation reserved, causing a buffer overflow and later memory
corruption.
Always rebuild preserved headers from the same normalized fields used by
the length calculation, instead of mixing normalized accounting with raw
header copying.
Compare:
https://github.com/OpenSIPS/opensips/compare/fc8b1bbc771e...d016658049fe
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