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CVE-2023-50269

Fixed in a distro release EPSS 58%CVSS 8.6

Squid is a caching proxy for the Web. Due to an Uncontrolled Recursion bug in versions 2.6 through 2.7.STABLE9, versions 3.1 through 5.9, and versions 6.0.1 through 6.5, Squid may be vulnerable to a Denial of Service attack against HTTP Request parsing. This problem allows a remote client to perform Denial of Service attack by sending a large X-Forwarded-For header when the follow_x_forwarded_for feature is configured. This bug is fixed by Squid version 6.6. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives.

Published 2023-12-14 · CVE record · OSV

Products: squid-cache squid

Distro releases

ReleasePackageFixed in
AlmaLinux 8libecap1.0.1-2.module_el8.6.0+2741+01592ae8
AlmaLinux 8libecap1.0.1-2.module_el8.6.0+3048+383bc947
AlmaLinux 8libecap-devel1.0.1-2.module_el8.6.0+2741+01592ae8
AlmaLinux 8libecap-devel1.0.1-2.module_el8.6.0+3048+383bc947
AlmaLinux 8squid7:4.15-7.module_el8.9.0+3749+dbf371ed.10
AlmaLinux 9squid7:5.5-6.el9_3.8
Alpine 3.19squid6.6-r0
Alpine 3.20squid6.6-r0
Alpine 3.21squid6.6-r0
Alpine 3.22squid6.6-r0
Alpine 3.23squid6.6-r0
Alpine 3.24squid6.6-r0
Debian 10squid4.6-1+deb10u9
Debian 11squid4.13-10+deb11u3
Debian 12squid5.7-2+deb12u1
Debian 13squid6.6-1
Debian 14squid6.6-1
Red Hat Enterprise Linux 7squid7:3.5.20-17.el7_9.10
Red Hat Enterprise Linux 7squid-debuginfo7:3.5.20-17.el7_9.10
Red Hat Enterprise Linux 7squid-migration-script7:3.5.20-17.el7_9.10
Red Hat Enterprise Linux 7squid-sysvinit7:3.5.20-17.el7_9.10
Red Hat Enterprise Linux 8libecap0:1.0.1-2.module+el8.9.0+19703+a1da7223
Red Hat Enterprise Linux 8libecap-debuginfo0:1.0.1-2.module+el8.9.0+19703+a1da7223
Red Hat Enterprise Linux 8libecap-debugsource0:1.0.1-2.module+el8.9.0+19703+a1da7223
Red Hat Enterprise Linux 8libecap-devel0:1.0.1-2.module+el8.9.0+19703+a1da7223
Red Hat Enterprise Linux 8squid7:4.15-7.module+el8.9.0+21530+59b09a5b.10
Red Hat Enterprise Linux 8squid-debuginfo7:4.15-7.module+el8.9.0+21530+59b09a5b.10
Red Hat Enterprise Linux 8squid-debugsource7:4.15-7.module+el8.9.0+21530+59b09a5b.10
Red Hat Enterprise Linux 9squid7:5.5-6.el9_3.8
Red Hat Enterprise Linux 9squid-debuginfo7:5.5-6.el9_3.8
Red Hat Enterprise Linux 9squid-debugsource7:5.5-6.el9_3.8
Red Hat rhel aus 8.2libecap0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel aus 8.2libecap-debuginfo0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel aus 8.2libecap-debugsource0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel aus 8.2libecap-devel0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel aus 8.2squid7:4.4-8.module+el8.2.0+21173+22259b09.7
Red Hat rhel aus 8.2squid-debuginfo7:4.4-8.module+el8.2.0+21173+22259b09.7
Red Hat rhel aus 8.2squid-debugsource7:4.4-8.module+el8.2.0+21173+22259b09.7
Red Hat rhel aus 8.4libecap0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel aus 8.4libecap-debuginfo0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel aus 8.4libecap-debugsource0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel aus 8.4libecap-devel0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel aus 8.4squid7:4.11-4.module+el8.4.0+21174+3894a031.6
Red Hat rhel aus 8.4squid-debuginfo7:4.11-4.module+el8.4.0+21174+3894a031.6
Red Hat rhel aus 8.4squid-debugsource7:4.11-4.module+el8.4.0+21174+3894a031.6
Red Hat rhel e4s 8.2libecap0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel e4s 8.2libecap-debuginfo0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel e4s 8.2libecap-debugsource0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel e4s 8.2libecap-devel0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel e4s 8.2squid7:4.4-8.module+el8.2.0+21173+22259b09.7
Red Hat rhel e4s 8.2squid-debuginfo7:4.4-8.module+el8.2.0+21173+22259b09.7
Red Hat rhel e4s 8.2squid-debugsource7:4.4-8.module+el8.2.0+21173+22259b09.7
Red Hat rhel e4s 8.4libecap0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel e4s 8.4libecap-debuginfo0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel e4s 8.4libecap-debugsource0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel e4s 8.4libecap-devel0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel e4s 8.4squid7:4.11-4.module+el8.4.0+21174+3894a031.6
Red Hat rhel e4s 8.4squid-debuginfo7:4.11-4.module+el8.4.0+21174+3894a031.6
Red Hat rhel e4s 8.4squid-debugsource7:4.11-4.module+el8.4.0+21174+3894a031.6
Red Hat rhel eus 8.6libecap0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel eus 8.6libecap-debuginfo0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel eus 8.6libecap-debugsource0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel eus 8.6libecap-devel0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel eus 8.6squid7:4.15-3.module+el8.6.0+21069+a1561e3d.4
Red Hat rhel eus 8.6squid-debuginfo7:4.15-3.module+el8.6.0+21069+a1561e3d.4
Red Hat rhel eus 8.6squid-debugsource7:4.15-3.module+el8.6.0+21069+a1561e3d.4
Red Hat rhel eus 8.8libecap0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel eus 8.8libecap-debuginfo0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel eus 8.8libecap-debugsource0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel eus 8.8libecap-devel0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel eus 8.8squid7:4.15-6.module+el8.8.0+21068+0ecbc070.3
Red Hat rhel eus 8.8squid-debuginfo7:4.15-6.module+el8.8.0+21068+0ecbc070.3
Red Hat rhel eus 8.8squid-debugsource7:4.15-6.module+el8.8.0+21068+0ecbc070.3
Red Hat rhel eus 9.0squid7:5.2-1.el9_0.4
Red Hat rhel eus 9.0squid-debuginfo7:5.2-1.el9_0.4
Red Hat rhel eus 9.0squid-debugsource7:5.2-1.el9_0.4
Red Hat rhel eus 9.2squid7:5.5-5.el9_2.4
Red Hat rhel eus 9.2squid-debuginfo7:5.5-5.el9_2.4
Red Hat rhel eus 9.2squid-debugsource7:5.5-5.el9_2.4
Red Hat rhel tus 8.2libecap0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel tus 8.2libecap-debuginfo0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel tus 8.2libecap-debugsource0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel tus 8.2libecap-devel0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel tus 8.2squid7:4.4-8.module+el8.2.0+21173+22259b09.7
Red Hat rhel tus 8.2squid-debuginfo7:4.4-8.module+el8.2.0+21173+22259b09.7
Red Hat rhel tus 8.2squid-debugsource7:4.4-8.module+el8.2.0+21173+22259b09.7
Red Hat rhel tus 8.4libecap0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel tus 8.4libecap-debuginfo0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel tus 8.4libecap-debugsource0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel tus 8.4libecap-devel0:1.0.1-2.module+el8.1.0+4044+36416a77
Red Hat rhel tus 8.4squid7:4.11-4.module+el8.4.0+21174+3894a031.6
Red Hat rhel tus 8.4squid-debuginfo7:4.11-4.module+el8.4.0+21174+3894a031.6
Red Hat rhel tus 8.4squid-debugsource7:4.11-4.module+el8.4.0+21174+3894a031.6
Rocky Linux 8libecap0:1.0.1-2.module+el8.9.0+1437+df5ea8f0
SUSE Enterprise Storage 7.1squid4.17-150000.5.49.1
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSSsquid4.17-150000.5.49.1
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSSsquid4.17-150000.5.49.1
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSsquid5.7-150400.3.23.1
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSSsquid5.7-150400.3.23.1
SUSE Linux Enterprise Module for Server Applications 15 SP5squid5.7-150400.3.23.1
SUSE Linux Enterprise Server 12 SP5squid4.17-4.41.1
SUSE Linux Enterprise Server 15 SP2-LTSSsquid4.17-150000.5.49.1
SUSE Linux Enterprise Server 15 SP3-LTSSsquid4.17-150000.5.49.1
SUSE Linux Enterprise Server 15 SP4-LTSSsquid5.7-150400.3.23.1
SUSE Linux Enterprise Server for SAP Applications 12 SP5squid4.17-4.41.1
SUSE Linux Enterprise Server for SAP Applications 15 SP2squid4.17-150000.5.49.1
SUSE Linux Enterprise Server for SAP Applications 15 SP3squid4.17-150000.5.49.1
SUSE Linux Enterprise Server for SAP Applications 15 SP4squid5.7-150400.3.23.1
SUSE Manager Proxy 4.3squid5.7-150400.3.23.1
SUSE Manager Server 4.3squid5.7-150400.3.23.1
Ubuntu 20.04 LTSsquid4.10-1ubuntu1.9
Ubuntu 22.04 LTSsquid5.7-0ubuntu0.22.04.3
Ubuntu 24.04 LTSsquid6.5-1ubuntu3
Ubuntu Pro 16.04 LTSsquid33.5.12-1ubuntu7.16+esm3
Ubuntu Pro 18.04 LTSsquid33.5.27-1ubuntu1.14+esm2
openSUSE Leap 15.5squid5.7-150400.3.23.1
openSUSE Tumbleweedsquid6.6-2.1