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91
security advisoryhigh severitygentooGentoo: GLSA 200810-03 High: libspf2 DNS Response Buffer Overflow
A memory management error in libspf2 might allow for remote execution of arbitrary code.. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200810-03 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: libspf2: DNS response buffer overflow Date: October 30, 2008 Bugs: #242254 ID: 200810-03 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======= A memory management error in libspf2 might allow for remote execution of arbitrary code. Background ========= libspf2 is a library that implements the Sender Policy Framework, allowing mail transfer agents to make sure that an email is authorized by the domain name that it is coming from. Currently, only the exim MTA uses libspf2 in Gentoo. Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 mail-filter/libspf2 < 1.2.8 > = 1.2.8 Description ========== libspf2 uses a fixed-length buffer to receive DNS responses and does not properly check the length of TXT records, leading to buffer overflows. Impact ===== A remote attacker could store a specially crafted DNS entry and entice a user or automated system using libspf2 to lookup that SPF entry (e.g. by sending an email to the MTA), possibly allowing for the execution of arbitrary code. Workaround ========= There is no known workaround at this time. Resolution ========= All libspf2 users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose "> =mail-filter/libspf2-1.2.8" References ========= [ 1 ] CVE-2008-2469 https://www.cve.org/CVERecord?id=CVE-2008-2469 Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/200810-03 Concerns? ======== Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to
Oct 30, 2008
Gentoo
91
security advisorydenial of servicegentooGentoo: GLSA-200502-25 Normal: Squid DNS Response Denial Of Service Issue
Squid contains a bug in the handling of certain DNS responses resulting in a Denial of Service.. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200502-25 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Squid: Denial of Service through DNS responses Date: February 18, 2005 Bugs: #81997 ID: 200502-25 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======= Squid contains a bug in the handling of certain DNS responses resulting in a Denial of Service. Background ========= Squid is a full-featured Web proxy cache designed to run on Unix-like systems. It supports proxying and caching of HTTP, FTP, and other protocols, as well as SSL support, cache hierarchies, transparent caching, access control lists and many other features. Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 www-proxy/squid < 2.5.8 > = 2.5.8 Description ========== Handling of certain DNS responses trigger assertion failures. Impact ===== By returning a specially crafted DNS response an attacker could cause Squid to crash by triggering an assertion failure. Workaround ========= There is no known workaround at this time. Resolution ========= All Squid users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose "> =www-proxy/squid-2.5.8" References ========= [ 1 ] CAN-2005-0446 https://www.cve.org/CVERecord?id=CAN-2005-0446 Availability =========== This GLSA and any updates to it are available for viewing at the GentooSecurity Website: https://security.gentoo.org/glsa/200502-25 Concerns? ======== Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to
Feb 18, 2005
Gentoo
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