Here are the latest advisories specifically for Ubuntu Linux:
- (Sep 9) With few junk e-mail filters supporting a protocol for verifying the source address of digital messages, spammers have adopted it themselves as a way to appear more legitimate, according to a report released on Wednesday. . . . ... - (Jan 29) Thanks to Eric Lubow for contributing this great review. ... - (Mar 8) It was discovered that gnome-screensaver did not correctly lock all screenswhen monitors get hotplugged. An attacker with physical access could usethis flaw to gain access to a locked session. (CVE-2010-0285) [More...] - (Mar 3) It was discovered that the CUPS scheduler did not properly handle certainnetwork operations. A remote attacker could exploit this flaw and cause theCUPS server to crash, resulting in a denial of service. This issue onlyaffected Ubuntu 8.04 LTS, 8.10, 9.04 and 9.10. (CVE-2009-3553,CVE-2010-0302) [More...] - (Feb 26) It was discovered that sudo did not properly validate the path for the'sudoedit' pseudo-command. A local attacker could exploit this to executearbitrary code as root if sudo was configured to allow the attacker to usesudoedit. The sudoedit pseudo-command is not used in the defaultinstallation of Ubuntu. (CVE-2010-0426) [More...] - (Feb 24) It was discovered that the XML HMAC signature system did not correctly check certain lengths. If an attacker sent a truncated HMAC, it could bypass authentication, leading to potential privilege escalation. (CVE-2009-0217) [More...] - (Feb 22) Fabian Yamaguchi discovered that Pidgin incorrectly validated all fields of an incoming message in the MSN protocol handler. A remote attacker could send a specially crafted message and cause Pidgin to crash, leading to a denial of service. (CVE-2010-0277) - (Feb 18)
USN-890-1 fixed vulnerabilities in Expat. This update provides the
corresponding updates for XML-RPC for C and C++.
Original advisory details:
Jukka Taimisto, Tero Rontti and Rauli Kaksonen discovered that Expat did
not properly process malformed XML. If a user or application linked against
Expat were tricked into opening a crafted XML file, an attacker could cause
a denial of service via application crash. (CVE-2009-2625, CVE-2009-3720)
It was discovered that Expat did not properly process malformed UTF-8
sequences. If a user or application linked against Expat were tricked into
opening a crafted XML file, an attacker could cause a denial of service via
application crash. (CVE-2009-3560)
- (Feb 17)
Several flaws were discovered in the browser engine of Firefox. If a user
were tricked into viewing a malicious website, a remote attacker could
cause a denial of service or possibly execute arbitrary code with the
privileges of the user invoking the program. (CVE-2010-0159)
Orlando Barrera II discovered a flaw in the Web Workers implementation of
Firefox. If a user were tricked into posting to a malicious website, an
attacker could cause a denial of service or possibly execute arbitrary code
with the privileges of the user invoking the program. (CVE-2010-0160)
Alin Rad Pop discovered that Firefox's HTML parser would incorrectly free
memory under certain circumstances. If the browser could be made to access
these freed memory objects, an attacker could exploit this to execute
arbitrary code with the privileges of the user invoking the program.
(CVE-2009-1571)
Hidetake Jo discovered that the showModalDialog in Firefox did not always
honor the same-origin policy. An attacker could exploit this to run
untrusted JavaScript from other domains. (CVE-2009-3988)
Georgi Guninski discovered that the same-origin check in Firefox could be
bypassed by utilizing a crafted SVG image. If a user were tricked into
viewing a malicious website, an attacker could exploit this to read data
from other domains. (CVE-2010-0162)
- (Feb 17)
Several flaws were discovered in the browser engine of Firefox. If a user
were tricked into viewing a malicious website, a remote attacker could
cause a denial of service or possibly execute arbitrary code with the
privileges of the user invoking the program. (CVE-2010-0159)
Orlando Barrera II discovered a flaw in the Web Workers implementation of
Firefox. If a user were tricked into posting to a malicious website, an
attacker could cause a denial of service or possibly execute arbitrary code
with the privileges of the user invoking the program. (CVE-2010-0160)
Alin Rad Pop discovered that Firefox's HTML parser would incorrectly free
memory under certain circumstances. If the browser could be made to access
these freed memory objects, an attacker could exploit this to execute
arbitrary code with the privileges of the user invoking the program.
(CVE-2009-1571)
Hidetake Jo discovered that the showModalDialog in Firefox did not always
honor the same-origin policy. An attacker could exploit this to run
untrusted JavaScript from other domains. (CVE-2009-3988)
Georgi Guninski discovered that the same-origin check in Firefox could be
bypassed by utilizing a crafted SVG image. If a user were tricked into
viewing a malicious website, an attacker could exploit this to read data
from other domains. (CVE-2010-0162)
- (Feb 16)
It was discovered that Squid incorrectly handled certain auth headers. A
remote attacker could exploit this with a specially-crafted auth header
and cause Squid to go into an infinite loop, resulting in a denial of
service. This issue only affected Ubuntu 8.10, 9.04 and 9.10.
(CVE-2009-2855)
It was discovered that Squid incorrectly handled certain DNS packets. A
remote attacker could exploit this with a specially-crafted DNS packet
and cause Squid to crash, resulting in a denial of service. (CVE-2010-0308)
- (Feb 16)
Emmanouel Kellinis discovered that Ruby did not properly handle certain
string operations. An attacker could exploit this issue and possibly
execute arbitrary code with application privileges. (CVE-2009-4124)
Giovanni Pellerano, Alessandro Tanasi, and Francesco Ongaro discovered that
Ruby did not properly sanitize data written to log files. An attacker could
insert specially-crafted data into log files which could affect certain
terminal emulators and cause arbitrary files to be overwritten, or even
possibly execute arbitrary commands. (CVE-2009-4492)
It was discovered that Ruby did not properly handle string arguments that
represent large numbers. An attacker could exploit this and cause a denial
of service. This issue only affected Ubuntu 9.10. (CVE-2009-1904)
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