Vulnerability in X.org X Font Server
CVE-2007-4990
The swap_char2b function in X.Org X Font Server (xfs) before 1.0.5 allows context-dependent attackers to execute arbitrary code via (1) QueryXBitmaps and (2) QueryXExtents protocol requests with crafted size values that specify an arbitrary number of bytes to be swapped on the heap, which triggers heap corruption.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 7.5 (High). Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.107 (95.7th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 95.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.107 · newest: 0.107 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.novell.com/linux/security/advisories/2007_54_xorg.html (vendor-advisory)
- www.securitytracker.com/id (vdb-entry)
- secunia.com/advisories/28542 (third-party-advisory)
- sunsolve.sun.com/search/document.do (vendor-advisory)
- www.redhat.com/archives/fedora-package-announce/2007-December/msg00352.html (vendor-advisory)
- www.securityfocus.com/archive/1/481432/100/0/threaded (mailing-list)
- bugs.freedesktop.org/show_bug.cgi
- secunia.com/advisories/28514 (third-party-advisory)
- secunia.com/advisories/27052 (third-party-advisory)
- labs.idefense.com/intelligence/vulnerabilities/display.php (third-party-advisory)