Medium severity5.9NVD Advisory· Published Jul 11, 2019· Updated Jun 17, 2026
CVE-2019-12529
CVE-2019-12529
Description
An issue was discovered in Squid 2.x through 2.7.STABLE9, 3.x through 3.5.28, and 4.x through 4.7. When Squid is configured to use Basic Authentication, the Proxy-Authorization header is parsed via uudecode. uudecode determines how many bytes will be decoded by iterating over the input and checking its table. The length is then used to start decoding the string. There are no checks to ensure that the length it calculates isn't greater than the input buffer. This leads to adjacent memory being decoded as well. An attacker would not be able to retrieve the decoded data unless the Squid maintainer had configured the display of usernames on error pages.
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Affected products
45- osv-coords23 versionspkg:rpm/opensuse/squid&distro=openSUSE%20Tumbleweedpkg:rpm/almalinux/libecappkg:rpm/almalinux/libecap-develpkg:rpm/suse/squid&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/squid&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/squid&distro=SUSE%20Enterprise%20Storage%204pkg:rpm/suse/squid&distro=SUSE%20Enterprise%20Storage%205pkg:rpm/suse/squid&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/squid&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP1pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/opensuse/squid&distro=openSUSE%20Leap%2015.0pkg:rpm/suse/squid3&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/squid3&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/opensuse/squid&distro=openSUSE%20Leap%2015.1
< 4.16-1.5+ 22 more
- (no CPE)range: < 4.16-1.5
- (no CPE)range: < 1.0.1-2.module_el8.6.0+2741+01592ae8
- (no CPE)range: < 1.0.1-2.module_el8.6.0+2741+01592ae8
- (no CPE)range: < 3.5.21-26.17.1
- (no CPE)range: < 3.5.21-26.17.1
- (no CPE)range: < 3.5.21-26.17.1
- (no CPE)range: < 3.5.21-26.17.1
- (no CPE)range: < 3.5.21-26.17.1
- (no CPE)range: < 3.5.21-26.17.1
- (no CPE)range: < 3.5.21-26.17.1
- (no CPE)range: < 3.5.21-26.17.1
- (no CPE)range: < 3.5.21-26.17.1
- (no CPE)range: < 3.5.21-26.17.1
- (no CPE)range: < 3.5.21-26.17.1
- (no CPE)range: < 3.5.21-26.17.1
- (no CPE)range: < 3.5.21-26.17.1
- (no CPE)range: < 4.9-5.11.1
- (no CPE)range: < 4.9-5.11.1
- (no CPE)range: < 3.5.21-26.17.1
- (no CPE)range: < 4.9-lp150.13.1
- (no CPE)range: < 3.1.23-8.16.37.12.1
- (no CPE)range: < 3.1.23-8.16.37.12.1
- (no CPE)range: < 4.9-lp151.2.7.1
- Squid/Squiddescription
cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*+ 9 more
- cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*range: >=2.0,<2.7
- cpe:2.3:a:squid-cache:squid:2.7:stable1:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:2.7:stable2:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:2.7:stable3:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:2.7:stable4:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:2.7:stable5:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:2.7:stable6:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:2.7:stable7:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:2.7:stable8:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:2.7:stable9:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*+ 3 more
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
12- www.squid-cache.org/Versions/v4/changesets/squid-4-dd46b5417809647f561d8a5e0e74c3aacd235258.patchnvdPatchVendor Advisory
- github.com/squid-cache/squid/commits/v4nvdPatchThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-11/msg00053.htmlnvdMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-11/msg00056.htmlnvdMailing ListThird Party Advisory
- www.squid-cache.org/Versions/v4/changesets/nvdVendor Advisory
- lists.debian.org/debian-lts-announce/2019/07/msg00018.htmlnvdMailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2020/07/msg00009.htmlnvdMailing ListThird Party Advisory
- seclists.org/bugtraq/2019/Aug/42nvdMailing ListThird Party Advisory
- usn.ubuntu.com/4065-1/nvdThird Party Advisory
- usn.ubuntu.com/4065-2/nvdThird Party Advisory
- www.debian.org/security/2019/dsa-4507nvdThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPXN2CLAGN5QSQBTOV5IGVLDOQSRFNTZ/nvd
News mentions
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