CVE-2019-12527
Fixed in a distro release EPSS 49%
An issue was discovered in Squid 4.0.23 through 4.7. When checking Basic Authentication with HttpHeader::getAuth, Squid uses a global buffer to store the decoded data. Squid does not check that the decoded length isn't greater than the buffer, leading to a heap-based buffer overflow with user controlled data.
Products: squid-cache squid, fedoraproject fedora, debian_linux, canonical ubuntu_linux, redhat enterprise_linux, redhat enterprise_linux_eus, redhat enterprise_linux_server_aus, redhat enterprise_linux_server_tus
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux 8 | libecap | 1.0.1-2.module_el8.6.0+2741+01592ae8 |
| AlmaLinux 8 | libecap-devel | 1.0.1-2.module_el8.6.0+2741+01592ae8 |
| Arch Linux | squid | 4.8-1 |
| Debian 10 | squid | 4.6-1+deb10u1 |
| Debian 12 | squid | 4.8-1 |
| Debian 13 | squid | 4.8-1 |
| Debian 14 | squid | 4.8-1 |
| Red Hat Enterprise Linux 8 | libecap | 0:1.0.1-2.module+el8.0.0+4045+70edde92 |
| Red Hat Enterprise Linux 8 | libecap-debuginfo | 0:1.0.1-2.module+el8.0.0+4045+70edde92 |
| Red Hat Enterprise Linux 8 | libecap-debugsource | 0:1.0.1-2.module+el8.0.0+4045+70edde92 |
| Red Hat Enterprise Linux 8 | libecap-devel | 0:1.0.1-2.module+el8.0.0+4045+70edde92 |
| Red Hat Enterprise Linux 8 | squid | 7:4.4-5.module+el8.0.0+4045+70edde92 |
| Red Hat Enterprise Linux 8 | squid-debuginfo | 7:4.4-5.module+el8.0.0+4045+70edde92 |
| Red Hat Enterprise Linux 8 | squid-debugsource | 7:4.4-5.module+el8.0.0+4045+70edde92 |
| Rocky Linux 8 | libecap | 0:1.0.1-2.module+el8.4.0+404+316a0dc5 |
| SUSE Linux Enterprise Module for Server Applications 15 | squid | 4.9-5.11.1 |
| SUSE Linux Enterprise Module for Server Applications 15 SP1 | squid | 4.9-5.11.1 |
| Ubuntu 16.04 LTS | squid3 | 3.5.12-1ubuntu7.8 |
| Ubuntu 18.04 LTS | squid3 | 3.5.27-1ubuntu1.3 |
| openSUSE Leap 15.0 | squid | 4.9-lp150.13.1 |
| openSUSE Leap 15.1 | squid | 4.9-lp151.2.7.1 |
| openSUSE Tumbleweed | squid | 4.16-1.5 |