import squid-4.15-3.module+el8.6.0+15801+8fa20c64.1
This commit is contained in:
CentOS Sources
Stepan Oksanichenko
parent
339ad17564
commit
33a14195ec
129
SOURCES/squid-4.15-CVE-2021-46784.patch
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129
SOURCES/squid-4.15-CVE-2021-46784.patch
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From 780c4ea1b4c9d2fb41f6962aa6ed73ae57f74b2b Mon Sep 17 00:00:00 2001
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From: Joshua Rogers <MegaManSec@users.noreply.github.com>
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Date: Mon, 18 Apr 2022 13:42:36 +0000
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Subject: [PATCH] Improve handling of Gopher responses (#1022)
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---
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src/gopher.cc | 45 ++++++++++++++++++++-------------------------
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1 file changed, 20 insertions(+), 25 deletions(-)
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diff --git a/src/gopher.cc b/src/gopher.cc
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index 169b0e18299..6187da18bcd 100644
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--- a/src/gopher.cc
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+++ b/src/gopher.cc
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@@ -371,7 +371,6 @@ gopherToHTML(GopherStateData * gopherState, char *inbuf, int len)
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char *lpos = NULL;
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char *tline = NULL;
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LOCAL_ARRAY(char, line, TEMP_BUF_SIZE);
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- LOCAL_ARRAY(char, tmpbuf, TEMP_BUF_SIZE);
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char *name = NULL;
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char *selector = NULL;
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char *host = NULL;
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@@ -381,7 +380,6 @@ gopherToHTML(GopherStateData * gopherState, char *inbuf, int len)
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char gtype;
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StoreEntry *entry = NULL;
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- memset(tmpbuf, '\0', TEMP_BUF_SIZE);
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memset(line, '\0', TEMP_BUF_SIZE);
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entry = gopherState->entry;
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@@ -416,7 +414,7 @@ gopherToHTML(GopherStateData * gopherState, char *inbuf, int len)
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return;
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}
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- String outbuf;
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+ SBuf outbuf;
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if (!gopherState->HTML_header_added) {
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if (gopherState->conversion == GopherStateData::HTML_CSO_RESULT)
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@@ -583,34 +581,34 @@ gopherToHTML(GopherStateData * gopherState, char *inbuf, int len)
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break;
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}
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- memset(tmpbuf, '\0', TEMP_BUF_SIZE);
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-
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if ((gtype == GOPHER_TELNET) || (gtype == GOPHER_3270)) {
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if (strlen(escaped_selector) != 0)
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- snprintf(tmpbuf, TEMP_BUF_SIZE, "<IMG border=\"0\" SRC=\"%s\"> <A HREF=\"telnet://%s@%s%s%s/\">%s</A>\n",
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- icon_url, escaped_selector, rfc1738_escape_part(host),
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- *port ? ":" : "", port, html_quote(name));
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+ outbuf.appendf("<IMG border=\"0\" SRC=\"%s\"> <A HREF=\"telnet://%s@%s%s%s/\">%s</A>\n",
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+ icon_url, escaped_selector, rfc1738_escape_part(host),
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+ *port ? ":" : "", port, html_quote(name));
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else
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- snprintf(tmpbuf, TEMP_BUF_SIZE, "<IMG border=\"0\" SRC=\"%s\"> <A HREF=\"telnet://%s%s%s/\">%s</A>\n",
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- icon_url, rfc1738_escape_part(host), *port ? ":" : "",
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- port, html_quote(name));
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+ outbuf.appendf("<IMG border=\"0\" SRC=\"%s\"> <A HREF=\"telnet://%s%s%s/\">%s</A>\n",
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+ icon_url, rfc1738_escape_part(host), *port ? ":" : "",
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+ port, html_quote(name));
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} else if (gtype == GOPHER_INFO) {
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- snprintf(tmpbuf, TEMP_BUF_SIZE, "\t%s\n", html_quote(name));
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+ outbuf.appendf("\t%s\n", html_quote(name));
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} else {
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if (strncmp(selector, "GET /", 5) == 0) {
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/* WWW link */
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- snprintf(tmpbuf, TEMP_BUF_SIZE, "<IMG border=\"0\" SRC=\"%s\"> <A HREF=\"http://%s/%s\">%s</A>\n",
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- icon_url, host, rfc1738_escape_unescaped(selector + 5), html_quote(name));
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+ outbuf.appendf("<IMG border=\"0\" SRC=\"%s\"> <A HREF=\"http://%s/%s\">%s</A>\n",
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+ icon_url, host, rfc1738_escape_unescaped(selector + 5), html_quote(name));
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+ } else if (gtype == GOPHER_WWW) {
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+ outbuf.appendf("<IMG border=\"0\" SRC=\"%s\"> <A HREF=\"gopher://%s/%c%s\">%s</A>\n",
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+ icon_url, rfc1738_escape_unescaped(selector), html_quote(name));
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} else {
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/* Standard link */
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- snprintf(tmpbuf, TEMP_BUF_SIZE, "<IMG border=\"0\" SRC=\"%s\"> <A HREF=\"gopher://%s/%c%s\">%s</A>\n",
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- icon_url, host, gtype, escaped_selector, html_quote(name));
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+ outbuf.appendf("<IMG border=\"0\" SRC=\"%s\"> <A HREF=\"gopher://%s/%c%s\">%s</A>\n",
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+ icon_url, host, gtype, escaped_selector, html_quote(name));
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}
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}
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safe_free(escaped_selector);
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- outbuf.append(tmpbuf);
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} else {
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memset(line, '\0', TEMP_BUF_SIZE);
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continue;
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@@ -643,13 +641,12 @@ gopherToHTML(GopherStateData * gopherState, char *inbuf, int len)
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break;
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if (gopherState->cso_recno != recno) {
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- snprintf(tmpbuf, TEMP_BUF_SIZE, "</PRE><HR noshade size=\"1px\"><H2>Record# %d<br><i>%s</i></H2>\n<PRE>", recno, html_quote(result));
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+ outbuf.appendf("</PRE><HR noshade size=\"1px\"><H2>Record# %d<br><i>%s</i></H2>\n<PRE>", recno, html_quote(result));
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gopherState->cso_recno = recno;
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} else {
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- snprintf(tmpbuf, TEMP_BUF_SIZE, "%s\n", html_quote(result));
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+ outbuf.appendf("%s\n", html_quote(result));
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}
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- outbuf.append(tmpbuf);
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break;
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} else {
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int code;
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@@ -677,8 +674,7 @@ gopherToHTML(GopherStateData * gopherState, char *inbuf, int len)
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case 502: { /* Too Many Matches */
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/* Print the message the server returns */
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- snprintf(tmpbuf, TEMP_BUF_SIZE, "</PRE><HR noshade size=\"1px\"><H2>%s</H2>\n<PRE>", html_quote(result));
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- outbuf.append(tmpbuf);
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+ outbuf.appendf("</PRE><HR noshade size=\"1px\"><H2>%s</H2>\n<PRE>", html_quote(result));
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break;
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}
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@@ -694,13 +690,12 @@ gopherToHTML(GopherStateData * gopherState, char *inbuf, int len)
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} /* while loop */
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- if (outbuf.size() > 0) {
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- entry->append(outbuf.rawBuf(), outbuf.size());
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+ if (outbuf.length() > 0) {
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+ entry->append(outbuf.rawContent(), outbuf.length());
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/* now let start sending stuff to client */
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entry->flush();
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}
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- outbuf.clean();
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return;
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}
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@ -2,7 +2,7 @@
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Name: squid
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Name: squid
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Version: 4.15
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Version: 4.15
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Release: 3%{?dist}
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Release: 3%{?dist}.1
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Summary: The Squid proxy caching server
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Summary: The Squid proxy caching server
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Epoch: 7
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Epoch: 7
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# See CREDITS for breakdown of non GPLv2+ code
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# See CREDITS for breakdown of non GPLv2+ code
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@ -40,6 +40,8 @@ Patch209: squid-4.15-ftp-filename-extraction.patch
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# Security fixes
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# Security fixes
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# https://bugzilla.redhat.com/show_bug.cgi?id=1941506
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# https://bugzilla.redhat.com/show_bug.cgi?id=1941506
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Patch300: squid-4.15-CVE-2021-28116.patch
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Patch300: squid-4.15-CVE-2021-28116.patch
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# https://bugzilla.redhat.com/show_bug.cgi?id=2100721
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Patch301: squid-4.15-CVE-2021-46784.patch
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Requires: bash >= 2.0
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Requires: bash >= 2.0
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Requires(pre): shadow-utils
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Requires(pre): shadow-utils
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@ -103,6 +105,7 @@ lookup program (dnsserver), a program for retrieving FTP data
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# Security patches
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# Security patches
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%patch300 -p1 -b .CVE-2021-28116
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%patch300 -p1 -b .CVE-2021-28116
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%patch301 -p1 -b .CVE-2021-46784
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# https://bugzilla.redhat.com/show_bug.cgi?id=1679526
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# https://bugzilla.redhat.com/show_bug.cgi?id=1679526
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# Patch in the vendor documentation and used different location for documentation
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# Patch in the vendor documentation and used different location for documentation
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@ -319,6 +322,10 @@ fi
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%changelog
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%changelog
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* Tue Jun 28 2022 Luboš Uhliarik <luhliari@redhat.com> - 7:4.15-3.1
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- Resolves: #2100782 - CVE-2021-46784 squid:4/squid: DoS when processing gopher
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server responses
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* Wed Feb 09 2022 Luboš Uhliarik <luhliari@redhat.com> - 7:4.15-3
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* Wed Feb 09 2022 Luboš Uhliarik <luhliari@redhat.com> - 7:4.15-3
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- Resolves: #1941506 - CVE-2021-28116 squid:4/squid: out-of-bounds read in WCCP
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- Resolves: #1941506 - CVE-2021-28116 squid:4/squid: out-of-bounds read in WCCP
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protocol data may lead to information disclosure
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protocol data may lead to information disclosure
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