Bug 53479 – nettle: Multiple issues (5.0)

Bug 53479 - nettle: Multiple issues (5.0)


Summary:	nettle: Multiple issues (5.0)

Status:	CLOSED FIXED

Product:	UCS
Classification:	Unclassified
Component:	Security updates
Version:	UCS 5.0
Hardware:	All Linux

Importance:	P3 normal (vote)
Target Milestone:	UCS 5.0-0-errata
Assigned To:	Quality Assurance
QA Contact:	Erik Damrose

URL:
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Depends on:
Blocks:
	Show dependency tree / graph

Reported:	2021-06-21 10:00 CEST by Quality Assurance
Modified:	2021-06-23 15:55 CEST (History)
CC List:	0 users

See Also:
What kind of report is it?:	Security Issue
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How will those affected feel about the bug?:	---
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Max CVSS v3 score:	8.1 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)

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Description Quality Assurance

2021-06-21 10:00:15 CEST

New Debian nettle 3.4.1-1+deb10u1 fixes:
This update addresses the following issues:
* Remote crash in RSA decryption via manipulated ciphertext (CVE-2021-3580)
* Out of bounds memory access in signature verification (CVE-2021-20305)

Comment 1 Quality Assurance

2021-06-21 11:00:26 CEST

--- mirror/ftp/pool/main/n/nettle/nettle_3.4.1-1.dsc
+++ apt/ucs_5.0-0-errata5.0-0/source/nettle_3.4.1-1+deb10u1.dsc
@@ -1,3 +1,12 @@
+3.4.1-1+deb10u1 [Fri, 11 Jun 2021 19:53:20 +0200] Magnus Holmgren <holmgren@debian.org>:
+
+  * Fix for CVE-2021-3580 - potential crash on invalid input to the RSA
+    decryption functions (Closes: #989631).
+  * Fix for CVE-2021-20305 - bug in ECDSA signature verification that
+    could lead to a denial of service attack (via an assertion failure) or
+    possibly incorrect results, backported from 3.7.2 by Marc Deslauriers
+    <marc.deslauriers@ubuntu.com> (Closes: #985652).
+
 3.4.1-1 [Sat, 26 Jan 2019 13:19:09 +0100] Magnus Holmgren <holmgren@debian.org>:
 
   * Final upstream release (identical to RC1).

<http://piuparts.knut.univention.de/5.0-0/#8447036360434902653>

Comment 2 Erik Damrose

2021-06-23 09:47:28 CEST

OK: yaml
OK: announce_errata
OK: patch
OK: piuparts

Comment 3 Erik Damrose

2021-06-23 15:55:55 CEST

<https://errata.software-univention.de/#/?erratum=5.0x18>