synaptic crashed with SIGSEGV in pkgCacheGenerator::ListParser::NewProvides()

[Xavier Fung]

Synaptics crashed after doing a reload of the repo from the toolbar and download of the repo info.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: synaptic 0.75.9
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic x86_64
ApportVersion: 2.0.1-0ubuntu2
Architecture: amd64
Date: Sat Apr 14 12:25:32 2012
ExecutablePath: /usr/sbin/synaptic
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
ProcCmdline: /usr/sbin/synaptic
ProcEnviron:
 SHELL=/bin/bash
 LANG=en_HK.UTF-8
 LANGUAGE=en_HK:en
 PATH=(custom, no user)
SegvAnalysis:
 Segfault happened at: 0x7f608fcf43d0 <_ZN17pkgCacheGenerator10ListParser11NewProvidesERN8pkgCache11VerIteratorERKSsS5_S5_+864>: mov %eax,0x8(%rbx)
 PC (0x7f608fcf43d0) ok
 source "%eax" ok
 destination "0x8(%rbx)" (0x7f6073d7ee50) not located in a known VMA region (needed writable region)!
SegvReason: writing unknown VMA
Signal: 11
SourcePackage: synaptic
StacktraceTop:
 pkgCacheGenerator::ListParser::NewProvides(pkgCache::VerIterator&, std::string const&, std::string const&, std::string const&) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
 debListParser::NewProvidesAllArch(pkgCache::VerIterator&, std::string const&, std::string const&) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
 debListParser::ParseProvides(pkgCache::VerIterator&) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
 debListParser::NewVersion(pkgCache::VerIterator&) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
 pkgCacheGenerator::MergeListVersion(pkgCacheGenerator::ListParser&, pkgCache::PkgIterator&, std::string const&, pkgCache::VerIterator*&) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
Title: synaptic crashed with SIGSEGV in pkgCacheGenerator::ListParser::NewProvides()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:
 pkgCacheGenerator::ListParser::NewProvides(pkgCache::VerIterator&, std::string const&, std::string const&, std::string const&) () from /tmp/tmpgdAeMF/usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
 debListParser::NewProvidesAllArch(pkgCache::VerIterator&, std::string const&, std::string const&) () from /tmp/tmpgdAeMF/usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
 debListParser::ParseProvides(pkgCache::VerIterator&) () from /tmp/tmpgdAeMF/usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
 debListParser::NewVersion(pkgCache::VerIterator&) () from /tmp/tmpgdAeMF/usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
 pkgCacheGenerator::MergeListVersion(pkgCacheGenerator::ListParser&, pkgCache::PkgIterator&, std::string const&, pkgCache::VerIterator*&) () from /tmp/tmpgdAeMF/usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12

[Launchpad Janitor (janitor)]

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

[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.

[Julian Andres Klode (juliank)]

Thanks for your bug report. This might be fixed in the meantime. If you can still reproduce it in wily, please re-open.