CVE-2019-12526

An issue was discovered in Squid before 4.9. URN response handling in Squid suffers from a heap-based buffer overflow. When receiving data from a remote server in response to an URN request, Squid fails to ensure that the response can fit within the buffer. This leads to attacker controlled data overflowing in the heap.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
mitreCNA
---
---
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 96%
VendorProductVersion
squid-cachesquid
3.0 ≤
𝑥
≤ 3.5.28
squid-cachesquid
4.0 ≤
𝑥
≤ 4.8
canonicalubuntu_linux
16.04
canonicalubuntu_linux
18.04
canonicalubuntu_linux
19.04
canonicalubuntu_linux
19.10
opensuseleap
15.0
debiandebian_linux
8.0
debiandebian_linux
9.0
debiandebian_linux
10.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
squid
bullseye
4.13-10+deb11u3
fixed
bullseye (security)
4.13-10+deb11u3
fixed
bookworm
5.7-2+deb12u2
fixed
bookworm (security)
5.7-2+deb12u2
fixed
sid
6.12-1
fixed
trixie
6.12-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
squid
hirsute
Fixed 4.9-2ubuntu1
released
groovy
Fixed 4.9-2ubuntu1
released
focal
Fixed 4.9-2ubuntu1
released
eoan
Fixed 4.8-1ubuntu2.1
released
disco
Fixed 4.4-1ubuntu2.3
released
bionic
dne
xenial
dne
trusty
dne
squid3
hirsute
dne
groovy
dne
focal
dne
eoan
dne
disco
dne
bionic
Fixed 3.5.27-1ubuntu1.4
released
xenial
Fixed 3.5.12-1ubuntu7.9
released
trusty
dne