[CLSA-2026:1784295645] xorg-x11-server-Xwayland: Fix of CVE-2026-55999
Type:
security
Severity:
Important
Release date:
2026-07-17 13:41:08 UTC
Description:
- CVE-2026-55999: reject fonts with per-glyph metrics exceeding maxbounds in glamor_font_get() to prevent heap buffer overflow in the glamor font atlas
CVEs fixed:
Updated packages:
  • xorg-x11-server-Xwayland-21.1.3-7.el9.tuxcare.els17.i686.rpm
    sha:cf6b0de73178df1b52f0ae5404eb5cb30ac91188f9d1e12d5d0c24cacf73814f
  • xorg-x11-server-Xwayland-21.1.3-7.el9.tuxcare.els17.x86_64.rpm
    sha:0c54e5024362ecabc8e0ca8f56eb13d41ccf301d29f90ae9a6847eb99ac3de45
  • xorg-x11-server-Xwayland-devel-21.1.3-7.el9.tuxcare.els17.i686.rpm
    sha:e14e43c3579de541c2a2ebc2c19838b6616c39649c928e88d1c6ebed299b6567
  • xorg-x11-server-Xwayland-devel-21.1.3-7.el9.tuxcare.els17.x86_64.rpm
    sha:bfeedf28b2e7325f18d140e788b625c7f6c962f695b613a46430043c9d00543c
Notes:
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