VulnerabilityModified
CVE-2021-4008
An out-of-bounds access can occur in the SProcRenderCompositeGlyphs function.
HIGH 7.8EPSS 0.56%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.56%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access can occur in the SProcRenderCompositeGlyphs function. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.56% probability · 45th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- x.org/x server · fedoraproject/fedora · debian/debian linux
- Source
- secalert@redhat.com
References
- https://lists.debian.org/debian-lts-announce/2021/12/msg00035.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NKLSZCY47QK4RCJFXITYFALCGPJAFXOK/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NXTRPFEQLFZ6NT2LPLZEID664RGC3OCC/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PDHYZM6FII35JA7J275MFCJO6ADJUPQX/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T57DCF726O5LLTST4NBL5PQ7DLPB46HT/
- https://lists.x.org/archives/xorg-announce/2021-December/003122.htmlVendor Advisory
- https://lists.x.org/archives/xorg-announce/2021-December/003124.htmlVendor Advisory
- https://security.gentoo.org/glsa/202305-30
- https://security.netapp.com/advisory/ntap-20220114-0004/Third Party Advisory
- https://www.debian.org/security/2021/dsa-5027Third Party Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-1547/Third Party Advisory, VDB Entry
- https://lists.debian.org/debian-lts-announce/2021/12/msg00035.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NKLSZCY47QK4RCJFXITYFALCGPJAFXOK/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NXTRPFEQLFZ6NT2LPLZEID664RGC3OCC/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PDHYZM6FII35JA7J275MFCJO6ADJUPQX/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T57DCF726O5LLTST4NBL5PQ7DLPB46HT/
- https://lists.x.org/archives/xorg-announce/2021-December/003122.htmlVendor Advisory
- https://lists.x.org/archives/xorg-announce/2021-December/003124.htmlVendor Advisory
- https://security.gentoo.org/glsa/202305-30
- https://security.netapp.com/advisory/ntap-20220114-0004/Third Party Advisory
- https://www.debian.org/security/2021/dsa-5027Third Party Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-1547/Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.