CVE-2021-28116 Information disclosure in n/a
An out-of-bounds read in Squid's WCCP protocol allows information disclosure, potentially leading to remote code execution in specific configurations.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-28116?
CVE-2021-28116 is a low-severity vulnerability in Debian Debian Linux, published on 9 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Squid through 4.14 and 5.x through 5.0.5, in some configurations, allows information disclosure because of an out-of-bounds read in WCCP protocol data. This can be leveraged as part of a chain for remote code execution as nobody.
Weakness: CWE-125
Which versions are affected by CVE-2021-28116?
It affects 3 products.
Linux distribution packages (19)
libecap AlmaLinux:8 | All versions | 1.0.1-2.module_el8.6.0+2741+01592ae8 |
libecap-devel AlmaLinux:8 | All versions | 1.0.1-2.module_el8.6.0+2741+01592ae8 |
squid AlmaLinux:8 | All versions | 7:4.15-3.module_el8.6.0+2741+01592ae8 |
libecap Red Hat:enterprise_linux:8::appstream | All versions | 0:1.0.1-2.module+el8.1.0+4044+36416a77 |
libecap-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:1.0.1-2.module+el8.1.0+4044+36416a77 |
libecap-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 0:1.0.1-2.module+el8.1.0+4044+36416a77 |
libecap-devel Red Hat:enterprise_linux:8::appstream | All versions | 0:1.0.1-2.module+el8.1.0+4044+36416a77 |
squid Red Hat:enterprise_linux:8::appstream | All versions | 7:4.15-3.module+el8.6.0+14176+9782b8ab |
squid-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 7:4.15-3.module+el8.6.0+14176+9782b8ab |
squid-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 7:4.15-3.module+el8.6.0+14176+9782b8ab |
libecap Rocky Linux:8 | All versions | 0:1.0.1-2.module+el8.4.0+404+316a0dc5 |
squid Rocky Linux:8 | All versions | 7:4.15-3.module+el8.6.0+1044+67ab5d0a.2 |
squid SUSE:Linux Enterprise Module for Server Applications 15 SP2 | All versions | 4.17-5.29.1 |
squid SUSE:Linux Enterprise Module for Server Applications 15 SP3 | All versions | 4.17-5.29.1 |
squid SUSE:Linux Enterprise Server 12 SP5 | All versions | 4.17-4.21.1 |
squid SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | All versions | 4.17-4.21.1 |
squid openSUSE:Leap 15.2 | All versions | 4.17-lp152.2.12.1 |
squid openSUSE:Leap 15.3 | All versions | 4.17-5.29.1 |
squid openSUSE:Tumbleweed | All versions | 5.2-1.1 |
Products include Debian Debian Linux, Fedoraproject Fedora, Squid-Cache Squid.
How do I fix CVE-2021-28116?
Upgrade to a fixed version.
Is CVE-2021-28116 being exploited?
There is no known exploitation of CVE-2021-28116 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as ALPINE-CVE-2021-28116, ALSA-2022:1939, CLSA-2022-1652719177, CLSA-2022-1652732686, CLSA-2026-1776877737, CLSA-2026-1776941204 and 15 more.