Your message dated Sun, 30 May 2021 13:39:17 +0000
with message-id <[email protected]>
and subject line unblock isc-dhcp
has caused the Debian Bug report #989226,
regarding unblock: isc-dhcp/4.4.1-2.3
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
989226: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=989226
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: release.debian.org
Severity: normal
User: [email protected]
Usertags: unblock
X-Debbugs-Cc: [email protected],[email protected]
Hi Release team,
Please unblock package isc-dhcp
[ Reason ]
Update to adress CVE-2021-25217, tracked as #989157.
[ Impact ]
CVE remains open for bullseye.
[ Tests ]
None specifically to the vulnerability. The autopkgtests passes (only
systemd one seems flaky a bit, once retried it worked).
[ Risks ]
It includes the upstream provided patch which is overviewable and
targetted in the parsin code.
[ Checklist ]
[x] all changes are documented in the d/changelog
[x] I reviewed all changes and I approve them
[x] attach debdiff against the package in testing
[ Other info ]
Nothing particularly, but it needs a d-i review as well from Cyril.
unblock isc-dhcp/4.4.1-2.3
Regards,
Salvatore
diff -Nru isc-dhcp-4.4.1/debian/changelog isc-dhcp-4.4.1/debian/changelog
--- isc-dhcp-4.4.1/debian/changelog 2020-08-06 04:08:47.000000000 +0200
+++ isc-dhcp-4.4.1/debian/changelog 2021-05-27 06:59:48.000000000 +0200
@@ -1,3 +1,12 @@
+isc-dhcp (4.4.1-2.3) unstable; urgency=high
+
+ * Non-maintainer upload.
+ * A buffer overrun in lease file parsing code can be used to exploit a
+ common vulnerability shared by dhcpd and dhclient (CVE-2021-25217)
+ (Closes: #989157)
+
+ -- Salvatore Bonaccorso <[email protected]> Thu, 27 May 2021 06:59:48 +0200
+
isc-dhcp (4.4.1-2.2) unstable; urgency=medium
* Non-maintainer upload.
diff -Nru isc-dhcp-4.4.1/debian/patches/4.4.2.CVE-2021-25217.patch
isc-dhcp-4.4.1/debian/patches/4.4.2.CVE-2021-25217.patch
--- isc-dhcp-4.4.1/debian/patches/4.4.2.CVE-2021-25217.patch 1970-01-01
01:00:00.000000000 +0100
+++ isc-dhcp-4.4.1/debian/patches/4.4.2.CVE-2021-25217.patch 2021-05-27
06:59:48.000000000 +0200
@@ -0,0 +1,29 @@
+Description: A buffer overrun in lease file parsing code can be used to
exploit a common vulnerability shared by dhcpd and dhclient
+Origin: vendor
+Bug-Debian: https://bugs.debian.org/989157
+Bug-Debian-Security: https://security-tracker.debian.org/tracker/CVE-2021-25217
+Forwarded: not-needed
+Author: Salvatore Bonaccorso <[email protected]>
+Last-Update: 2021-05-26
+
+diff --git a/common/parse.c b/common/parse.c
+index 386a6321..fc7b39c6 100644
+--- a/common/parse.c
++++ b/common/parse.c
+@@ -5556,13 +5556,14 @@ int parse_X (cfile, buf, max)
+ skip_to_semi (cfile);
+ return 0;
+ }
+- convert_num (cfile, &buf [len], val, 16, 8);
+- if (len++ > max) {
++ if (len >= max) {
+ parse_warn (cfile,
+ "hexadecimal constant too long.");
+ skip_to_semi (cfile);
+ return 0;
+ }
++ convert_num (cfile, &buf [len], val, 16, 8);
++ len++;
+ token = peek_token (&val, (unsigned *)0, cfile);
+ if (token == COLON)
+ token = next_token (&val,
diff -Nru isc-dhcp-4.4.1/debian/patches/series
isc-dhcp-4.4.1/debian/patches/series
--- isc-dhcp-4.4.1/debian/patches/series 2020-08-06 04:08:47.000000000
+0200
+++ isc-dhcp-4.4.1/debian/patches/series 2021-05-27 06:59:48.000000000
+0200
@@ -17,3 +17,5 @@
configure.patch
Fixed_gcc_10_compilation_issues.patch
+
+4.4.2.CVE-2021-25217.patch
--- End Message ---
--- Begin Message ---
Unblocked.
--- End Message ---
