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THREATINT
PUBLISHED

CVE-2025-49179

Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer overflow in x record extension



Description

A flaw was found in the X Record extension. The RecordSanityCheckRegisterClients function does not check for an integer overflow when computing request length, which allows a client to bypass length checks.

Reserved 2025-06-03 | Published 2025-06-17 | Updated 2025-07-15 | Assigner redhat


HIGH: 7.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H

Problem types

Integer Overflow or Wraparound

Product status

Default status
affected

0:24.1.5-4.el10_0 before *
unaffected

Default status
affected

0:1.1.0-25.el6_10.1 before *
unaffected

Default status
affected

0:1.8.0-17.el7_7.1 before *
unaffected

Default status
affected

0:1.20.4-32.el7_9 before *
unaffected

Default status
affected

0:1.8.0-36.el7_9.2 before *
unaffected

Default status
affected

0:1.20.11-26.el8_10 before *
unaffected

Default status
affected

0:21.1.3-18.el8_10 before *
unaffected

Default status
affected

0:1.15.0-7.el8_10 before *
unaffected

Default status
affected

0:1.9.0-15.el8_2.14 before *
unaffected

Default status
affected

0:1.20.6-4.el8_2 before *
unaffected

Default status
affected

0:1.20.10-2.el8_4 before *
unaffected

Default status
affected

0:1.11.0-8.el8_4.13 before *
unaffected

Default status
affected

0:1.20.10-2.el8_4 before *
unaffected

Default status
affected

0:1.11.0-8.el8_4.13 before *
unaffected

Default status
affected

0:1.12.0-6.el8_6.14 before *
unaffected

Default status
affected

0:21.1.3-2.el8_6.4 before *
unaffected

Default status
affected

0:1.20.11-5.el8_6.3 before *
unaffected

Default status
affected

0:1.12.0-6.el8_6.14 before *
unaffected

Default status
affected

0:21.1.3-2.el8_6.4 before *
unaffected

Default status
affected

0:1.12.0-6.el8_6.14 before *
unaffected

Default status
affected

0:21.1.3-2.el8_6.4 before *
unaffected

Default status
affected

0:1.20.11-5.el8_6.3 before *
unaffected

Default status
affected

0:1.12.0-6.el8_6.14 before *
unaffected

Default status
affected

0:21.1.3-2.el8_6.4 before *
unaffected

Default status
affected

0:1.20.11-5.el8_6.3 before *
unaffected

Default status
affected

0:1.20.11-16.el8_8 before *
unaffected

Default status
affected

0:21.1.3-11.el8_8 before *
unaffected

Default status
affected

0:1.20.11-16.el8_8 before *
unaffected

Default status
affected

0:1.12.0-15.el8_8.14 before *
unaffected

Default status
affected

0:21.1.3-11.el8_8 before *
unaffected

Default status
affected

0:1.20.11-16.el8_8 before *
unaffected

Default status
affected

0:1.12.0-15.el8_8.14 before *
unaffected

Default status
affected

0:21.1.3-11.el8_8 before *
unaffected

Default status
affected

0:1.20.11-31.el9_6 before *
unaffected

Default status
affected

0:23.2.7-4.el9_6 before *
unaffected

Default status
affected

0:1.14.1-8.el9_6 before *
unaffected

Default status
affected

0:21.1.3-3.el9_0 before *
unaffected

Default status
affected

0:1.20.11-11.el9_0 before *
unaffected

Default status
affected

0:1.11.0-22.el9_0.15 before *
unaffected

Default status
affected

0:21.1.3-8.el9_2 before *
unaffected

Default status
affected

0:1.20.11-18.el9_2 before *
unaffected

Default status
affected

0:1.12.0-14.el9_2.12 before *
unaffected

Default status
affected

0:22.1.9-6.el9_4 before *
unaffected

Default status
affected

0:1.20.11-26.el9_4 before *
unaffected

Default status
affected

0:1.13.1-8.el9_4.7 before *
unaffected

Default status
affected

Timeline

2025-06-03:Reported to Red Hat.
2025-06-17:Made public.

References

access.redhat.com/errata/RHSA-2025:10258 (RHSA-2025:10258) vendor-advisory

access.redhat.com/errata/RHSA-2025:10342 (RHSA-2025:10342) vendor-advisory

access.redhat.com/errata/RHSA-2025:10343 (RHSA-2025:10343) vendor-advisory

access.redhat.com/errata/RHSA-2025:10344 (RHSA-2025:10344) vendor-advisory

access.redhat.com/errata/RHSA-2025:10346 (RHSA-2025:10346) vendor-advisory

access.redhat.com/errata/RHSA-2025:10347 (RHSA-2025:10347) vendor-advisory

access.redhat.com/errata/RHSA-2025:10348 (RHSA-2025:10348) vendor-advisory

access.redhat.com/errata/RHSA-2025:10349 (RHSA-2025:10349) vendor-advisory

access.redhat.com/errata/RHSA-2025:10350 (RHSA-2025:10350) vendor-advisory

access.redhat.com/errata/RHSA-2025:10351 (RHSA-2025:10351) vendor-advisory

access.redhat.com/errata/RHSA-2025:10352 (RHSA-2025:10352) vendor-advisory

access.redhat.com/errata/RHSA-2025:10355 (RHSA-2025:10355) vendor-advisory

access.redhat.com/errata/RHSA-2025:10356 (RHSA-2025:10356) vendor-advisory

access.redhat.com/errata/RHSA-2025:10360 (RHSA-2025:10360) vendor-advisory

access.redhat.com/errata/RHSA-2025:10370 (RHSA-2025:10370) vendor-advisory

access.redhat.com/errata/RHSA-2025:10374 (RHSA-2025:10374) vendor-advisory

access.redhat.com/errata/RHSA-2025:10375 (RHSA-2025:10375) vendor-advisory

access.redhat.com/errata/RHSA-2025:10376 (RHSA-2025:10376) vendor-advisory

access.redhat.com/errata/RHSA-2025:10377 (RHSA-2025:10377) vendor-advisory

access.redhat.com/errata/RHSA-2025:10378 (RHSA-2025:10378) vendor-advisory

access.redhat.com/errata/RHSA-2025:10381 (RHSA-2025:10381) vendor-advisory

access.redhat.com/errata/RHSA-2025:10410 (RHSA-2025:10410) vendor-advisory

access.redhat.com/errata/RHSA-2025:9303 (RHSA-2025:9303) vendor-advisory

access.redhat.com/errata/RHSA-2025:9304 (RHSA-2025:9304) vendor-advisory

access.redhat.com/errata/RHSA-2025:9305 (RHSA-2025:9305) vendor-advisory

access.redhat.com/errata/RHSA-2025:9306 (RHSA-2025:9306) vendor-advisory

access.redhat.com/errata/RHSA-2025:9392 (RHSA-2025:9392) vendor-advisory

access.redhat.com/errata/RHSA-2025:9964 (RHSA-2025:9964) vendor-advisory

access.redhat.com/security/cve/CVE-2025-49179 vdb-entry

bugzilla.redhat.com/show_bug.cgi?id=2369978 (RHBZ#2369978) issue-tracking

cve.org (CVE-2025-49179)

nvd.nist.gov (CVE-2025-49179)

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