agora inbox for pgsql-committers@postgresql.org
help / color / mirror / Atom feedFrom: Noah Misch <noah@leadboat.com>
To: pgsql-committers@lists.postgresql.org
Subject: pgsql: Guard against overlength time zone abbreviations in to_char().
Date: Mon, 10 Aug 2026 13:41:21 +0000
Message-ID: <E1wtQFl-00000000y2k-1wji@gemulon.postgresql.org> (raw)
Guard against overlength time zone abbreviations in to_char().
While typical abbreviations are only a few bytes long, a user-supplied
time_zone setting could specify a much longer abbreviation, enough to
overflow to_char's allocation of 12 bytes per format character. If so,
throw an error in the same style as commit 9241c84cb (CVE-2015-0241).
Reported-by: Hcamael <baiyjrh@gmail.com>
Reported-by: Amjad Shahzad <amjadshahzad2000@gmail.com>
Reported-by: Tan Zhen of AntAISecurityLab <TanZhen.AntAI@outlook.com>
Reported-by: Tomer Fichman <tomer@irregular.com>
Reported-by: Zheng Yu <zheng@depthfirst.com>
Reported-by: Amy Burnett (OpenAI Codex Security)
Reported-by: Rick de Jager <rick@v12.sh>
Reported-by: Heewon Song <asteria121@78researchlab.com>
Reported-by: Sylvie Mayer <smayer@cloudflare.com>
Reported-by: Aleksander Alekseev <aleksander@tigerdata.com>
Reported-by: Hillai Ben Sasson <hillai.bensasson@wiz.io>
Author: Tom Lane <tgl@sss.pgh.pa.us>
Backpatch-through: 14
Security: CVE-2026-14669
Branch
------
REL_19_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/3294ab83947270a44f680a1725383e6521315b70
Author: Tom Lane <tgl@sss.pgh.pa.us>
Modified Files
--------------
src/backend/utils/adt/formatting.c | 21 ++++++++++++++++++---
1 file changed, 18 insertions(+), 3 deletions(-)
view thread (4+ messages) latest in thread
Message-ID: <E1wtQFl-00000000y2k-1wji@gemulon.postgresql.org>
Permalink: ../E1wtQFl-00000000y2k-1wji@gemulon.postgresql.org/
Also on: postgresql.org/message-id/E1wtQFl-00000000y2k-1wji@gemulon.postgresql.org
reply
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-committers@postgresql.org
Cc: noah@leadboat.com, pgsql-committers@lists.postgresql.org
Subject: Re: pgsql: Guard against overlength time zone abbreviations in to_char().
In-Reply-To: <E1wtQFl-00000000y2k-1wji@gemulon.postgresql.org>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by agora; see mirroring instructions
for how to clone and mirror all data and code used for this inbox