update-manager crashed with SIGSEGV in pkgPolicy::GetCandidateVer()

[mandrake]

update-manager

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: update-manager 1:0.156.11
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu2
Architecture: amd64
CrashCounter: 1
Date: Fri Apr 13 11:49:06 2012
ExecutablePath: /usr/bin/update-manager
GsettingsChanges:
 com.ubuntu.update-manager first-run false
 com.ubuntu.update-manager launch-time 1334310546
 com.ubuntu.update-manager window-height 500
 com.ubuntu.update-manager window-width 600
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120319)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/update-manager
ProcEnviron:
 PATH=(custom, no user)
 LANG=it_IT.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7fd55268a91e <_ZN9pkgPolicy15GetCandidateVerERKN8pkgCache11PkgIteratorE+366>: testb $0x1,0x38(%rax)
 PC (0x7fd55268a91e) ok
 source "$0x1" ok
 destination "0x38(%rax)" (0x7fd57d4f8bd0) not located in a known VMA region (needed writable region)!
SegvReason: writing unknown VMA
Signal: 11
SourcePackage: update-manager
StacktraceTop:
 pkgPolicy::GetCandidateVer(pkgCache::PkgIterator const&) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
 pkgDepCache::Init(OpProgress*) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
 pkgCacheFile::BuildDepCache(OpProgress*) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
 pkgCacheFile::Open(OpProgress*, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
 ?? () from /usr/lib/python2.7/dist-packages/apt_pkg.so
Title: update-manager crashed with SIGSEGV in pkgPolicy::GetCandidateVer()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lp lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 pkgPolicy::GetCandidateVer(pkgCache::PkgIterator const&) () from /tmp/tmpICet8B/usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
 pkgDepCache::Init(OpProgress*) () from /tmp/tmpICet8B/usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
 pkgCacheFile::BuildDepCache(OpProgress*) () from /tmp/tmpICet8B/usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
 pkgCacheFile::Open(OpProgress*, bool) () from /tmp/tmpICet8B/usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
 Open (Progress=..., this=0x1f7e0e0, WithLock=<optimized out>) at /usr/include/apt-pkg/cachefile.h:69

[Robert Roth (evfool)]

Thanks for taking the time to report this bug and helping to make Ubuntu better. We appreciate the difficulties you are facing, but this appears to be a "regular" (non-security) bug. I have unmarked it as a security issue since this bug does not show evidence of allowing attackers to cross privilege boundaries nor directly cause loss of data/privacy. Please feel free to report any other bugs you may find.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.