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- ------------------------------------------------------------------------- Debian Security Advisory DSA-4799-1
security@debian.org https://www.debian.org/security/ Salvatore Bonaccorso November 28, 2020
https://www.debian.org/security/faq
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Package : x11vnc
CVE ID : CVE-2020-29074
Debian Bug : 975875
Guenal Davalan reported a flaw in x11vnc, a VNC server to allow remote
access to an existing X session. x11vnc creates shared memory segments
with 0777 mode. A local attacker can take advantage of this flaw for information disclosure, denial of service or interfering with the VNC
session of another user on the host.
For the stable distribution (buster), this problem has been fixed in
version 0.9.13-6+deb10u1.
We recommend that you upgrade your x11vnc packages.
For the detailed security status of x11vnc please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/x11vnc
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at:
https://www.debian.org/security/
Mailing list:
debian-security-announce@lists.debian.org
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