CVE-2025-49176

A flaw was found in the Big Requests extension. The request length is multiplied by 4 before checking against the maximum allowed size, potentially causing an integer overflow and bypassing the size check.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.3 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
redhatCNA
7.3 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
CISA-ADPADP
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CVEADP
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Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 5%
Debian logo
Debian Releases
Debian Product
Codename
xorg-server
bullseye
vulnerable
trixie
2:21.1.16-1.3
ignored
bookworm
2:21.1.7-3+deb12u10
ignored
bullseye (security)
2:1.20.11-1+deb11u16
fixed
bookworm (security)
2:21.1.7-3+deb12u10
fixed
forky
2:21.1.18-2
fixed
sid
2:21.1.18-2
fixed
xwayland
bookworm
ignored
trixie
ignored
forky
2:24.1.8-1
fixed
sid
2:24.1.8-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
xorg-server
plucky
Fixed 2:21.1.16-1ubuntu1.1
released
oracular
Fixed 2:21.1.13-2ubuntu1.4
released
noble
Fixed 2:21.1.12-1ubuntu1.4
released
jammy
Fixed 2:21.1.4-2ubuntu1.7~22.04.15
released
focal
Fixed 2:1.20.13-1ubuntu1~20.04.20+esm1
released
bionic
Fixed 2:1.19.6-1ubuntu4.15+esm13
released
xenial
Fixed 2:1.18.4-0ubuntu0.12+esm18
released
trusty
needs-triage
xwayland
plucky
Fixed 2:24.1.6-1ubuntu0.1
released
oracular
Fixed 2:24.1.2-1ubuntu0.6
released
noble
Fixed 2:23.2.6-1ubuntu0.6
released
jammy
Fixed 2:22.1.1-1ubuntu0.19
released
xorg-hwe-16.04
plucky
dne
oracular
dne
noble
dne
jammy
dne
xenial
not-affected
xorg
plucky
not-affected
oracular
not-affected
noble
not-affected
jammy
not-affected
focal
not-affected
bionic
not-affected
xenial
not-affected
xorg-server-hwe-16.04
plucky
dne
oracular
dne
noble
dne
jammy
dne
xenial
Fixed 2:1.19.6-1ubuntu4.1~16.04.6+esm10
released
xorg-server-hwe-18.04
plucky
dne
oracular
dne
noble
dne
jammy
dne
bionic
Fixed 2:1.20.8-2ubuntu2.2~18.04.11+esm5
released
xorg-hwe-18.04
plucky
dne
oracular
dne
noble
dne
jammy
dne
bionic
not-affected
Common Weakness Enumeration
References
https://access.redhat.com/errata/RHSA-2025:10258
https://access.redhat.com/errata/RHSA-2025:10342
https://access.redhat.com/errata/RHSA-2025:10343
https://access.redhat.com/errata/RHSA-2025:10344
https://access.redhat.com/errata/RHSA-2025:10346
https://access.redhat.com/errata/RHSA-2025:10347
https://access.redhat.com/errata/RHSA-2025:10348
https://access.redhat.com/errata/RHSA-2025:10349
https://access.redhat.com/errata/RHSA-2025:10350
https://access.redhat.com/errata/RHSA-2025:10351
https://access.redhat.com/errata/RHSA-2025:10352
https://access.redhat.com/errata/RHSA-2025:10355
https://access.redhat.com/errata/RHSA-2025:10356
https://access.redhat.com/errata/RHSA-2025:10360
https://access.redhat.com/errata/RHSA-2025:10370
https://access.redhat.com/errata/RHSA-2025:10374
https://access.redhat.com/errata/RHSA-2025:10375
https://access.redhat.com/errata/RHSA-2025:10376
https://access.redhat.com/errata/RHSA-2025:10377
https://access.redhat.com/errata/RHSA-2025:10378
https://access.redhat.com/errata/RHSA-2025:10381
https://access.redhat.com/errata/RHSA-2025:10410
https://access.redhat.com/errata/RHSA-2025:9303
https://access.redhat.com/errata/RHSA-2025:9304
https://access.redhat.com/errata/RHSA-2025:9305
https://access.redhat.com/errata/RHSA-2025:9306
https://access.redhat.com/errata/RHSA-2025:9392
https://access.redhat.com/errata/RHSA-2025:9964
https://access.redhat.com/security/cve/CVE-2025-49176
https://bugzilla.redhat.com/show_bug.cgi?id=2369954
http://www.openwall.com/lists/oss-security/2025/06/18/2